import java.util.Locale;
import java.util.Stack;
+// maintaining 1.1 compatibility for now ... more portable, PJava, etc
+// Iterator, Hashmap and ArrayList ought to be faster
import java.util.ArrayList;
import java.util.Collections;
import java.util.Enumeration;
+import java.util.Hashtable;
import java.util.Iterator;
import java.util.List;
+import java.util.Vector;
import org.xml.sax.*;
import org.xml.sax.ext.*;
* @see org.xml.sax.Parser
*/
final public class SAXDriver
- implements Locator, Attributes2, XMLReader, Parser, AttributeList
+ implements Locator, Attributes2, XMLReader, Parser, AttributeList
{
-
- private final DefaultHandler2 base = new DefaultHandler2();
- private XmlParser parser;
-
- private EntityResolver entityResolver = base;
- private EntityResolver2 resolver2 = null;
- private ContentHandler contentHandler = base;
- private DTDHandler dtdHandler = base;
- private ErrorHandler errorHandler = base;
- private DeclHandler declHandler = base;
- private LexicalHandler lexicalHandler = base;
-
- private String elementName;
- private Stack entityStack;
-
- // one vector (of object/struct): faster, smaller
- private List attributesList;
-
- private boolean namespaces = true;
- private boolean xmlNames = false;
- private boolean extGE = true;
- private boolean extPE = true;
- private boolean resolveAll = true;
- private boolean useResolver2 = true;
-
- // package private to allow (read-only) access in XmlParser
- boolean stringInterning = true;
-
- private int attributeCount;
- private boolean attributes;
- private String[] nsTemp;
- private NamespaceSupport prefixStack;
-
- //
- // Constructor.
- //
-
- /**
- * Constructs a SAX Parser.
- */
- public SAXDriver()
- {
- reset();
- }
+ private final DefaultHandler2 base = new DefaultHandler2 ();
+ private XmlParser parser;
+
+ private EntityResolver entityResolver = base;
+ private EntityResolver2 resolver2 = null;
+ private ContentHandler contentHandler = base;
+ private DTDHandler dtdHandler = base;
+ private ErrorHandler errorHandler = base;
+ private DeclHandler declHandler = base;
+ private LexicalHandler lexicalHandler = base;
+
+ private String elementName;
+ private Stack entityStack;
+
+ // one vector (of object/struct): faster, smaller
+ private List attributesList;
+
+ private boolean namespaces = true;
+ private boolean xmlNames = false;
+ private boolean extGE = true;
+ private boolean extPE = true;
+ private boolean resolveAll = true;
+ private boolean useResolver2 = true;
+ private boolean stringInterning = true;
+
+ private int attributeCount;
+ private boolean attributes;
+ private String nsTemp [];
+ private NamespaceSupport prefixStack;
- private void reset()
- {
- elementName = null;
- entityStack = new Stack();
- attributesList = Collections.synchronizedList(new ArrayList());
- attributeCount = 0;
- attributes = false;
- nsTemp = new String[3];
- prefixStack = null;
- }
+ //
+ // Constructor.
+ //
+ /** Constructs a SAX Parser. */
+ public SAXDriver ()
+ {
+ reset ();
+ }
- //
- // Implementation of org.xml.sax.Parser.
- //
+ private void reset ()
+ {
+ elementName = null;
+ entityStack = new Stack ();
+ attributesList = Collections.synchronizedList(new ArrayList());
+ attributeCount = 0;
+ attributes = false;
+ nsTemp = new String[3];
+ prefixStack = null;
+ }
- /**
- * <b>SAX1</b>: Sets the locale used for diagnostics; currently,
- * only locales using the English language are supported.
- * @param locale The locale for which diagnostics will be generated
- */
- public void setLocale(Locale locale)
- throws SAXException
- {
- if ("en".equals(locale.getLanguage()))
- {
- return;
- }
- throw new SAXException ("AElfred2 only supports English locales.");
- }
- /**
- * <b>SAX2</b>: Returns the object used when resolving external
- * entities during parsing (both general and parameter entities).
- */
- public EntityResolver getEntityResolver()
- {
- return (entityResolver == base) ? null : entityResolver;
- }
+ //
+ // Implementation of org.xml.sax.Parser.
+ //
- /**
- * <b>SAX1, SAX2</b>: Set the entity resolver for this parser.
- * @param handler The object to receive entity events.
- */
- public void setEntityResolver(EntityResolver resolver)
- {
- if (resolver instanceof EntityResolver2)
- {
- resolver2 = (EntityResolver2) resolver;
- }
- else
- {
- resolver2 = null;
- }
- if (resolver == null)
- {
- resolver = base;
- }
- entityResolver = resolver;
- }
+ /**
+ * <b>SAX1</b>: Sets the locale used for diagnostics; currently,
+ * only locales using the English language are supported.
+ * @param locale The locale for which diagnostics will be generated
+ */
+ public void setLocale (Locale locale)
+ throws SAXException
+ {
+ if ("en".equals (locale.getLanguage ()))
+ return ;
- /**
- * <b>SAX2</b>: Returns the object used to process declarations related
- * to notations and unparsed entities.
- */
- public DTDHandler getDTDHandler()
- {
- return (dtdHandler == base) ? null : dtdHandler;
- }
+ throw new SAXException ("AElfred2 only supports English locales.");
+ }
- /**
- * <b>SAX1, SAX2</b>: Set the DTD handler for this parser.
- * @param handler The object to receive DTD events.
- */
- public void setDTDHandler(DTDHandler handler)
- {
- if (handler == null)
- {
- handler = base;
- }
- this.dtdHandler = handler;
- }
+ /**
+ * <b>SAX2</b>: Returns the object used when resolving external
+ * entities during parsing (both general and parameter entities).
+ */
+ public EntityResolver getEntityResolver ()
+ {
+ return (entityResolver == base) ? null : entityResolver;
+ }
- /**
- * <b>SAX1</b>: Set the document handler for this parser. If a
- * content handler was set, this document handler will supplant it.
- * The parser is set to report all XML 1.0 names rather than to
- * filter out "xmlns" attributes (the "namespace-prefixes" feature
- * is set to true).
- *
- * @deprecated SAX2 programs should use the XMLReader interface
- * and a ContentHandler.
- *
- * @param handler The object to receive document events.
- */
- public void setDocumentHandler(DocumentHandler handler)
- {
- contentHandler = new Adapter(handler);
- xmlNames = true;
- }
+ /**
+ * <b>SAX1, SAX2</b>: Set the entity resolver for this parser.
+ * @param handler The object to receive entity events.
+ */
+ public void setEntityResolver (EntityResolver resolver)
+ {
+ if (resolver instanceof EntityResolver2)
+ resolver2 = (EntityResolver2) resolver;
+ else
+ resolver2 = null;
+ if (resolver == null)
+ resolver = base;
+ entityResolver = resolver;
+ }
- /**
- * <b>SAX2</b>: Returns the object used to report the logical
- * content of an XML document.
- */
- public ContentHandler getContentHandler()
- {
- return (contentHandler == base) ? null : contentHandler;
- }
- /**
- * <b>SAX2</b>: Assigns the object used to report the logical
- * content of an XML document. If a document handler was set,
- * this content handler will supplant it (but XML 1.0 style name
- * reporting may remain enabled).
- */
- public void setContentHandler(ContentHandler handler)
- {
- if (handler == null)
- {
- handler = base;
- }
- contentHandler = handler;
- }
+ /**
+ * <b>SAX2</b>: Returns the object used to process declarations related
+ * to notations and unparsed entities.
+ */
+ public DTDHandler getDTDHandler ()
+ {
+ return (dtdHandler == base) ? null : dtdHandler;
+ }
- /**
- * <b>SAX1, SAX2</b>: Set the error handler for this parser.
- * @param handler The object to receive error events.
- */
- public void setErrorHandler(ErrorHandler handler)
- {
- if (handler == null)
- {
- handler = base;
- }
- this.errorHandler = handler;
- }
+ /**
+ * <b>SAX1, SAX2</b>: Set the DTD handler for this parser.
+ * @param handler The object to receive DTD events.
+ */
+ public void setDTDHandler (DTDHandler handler)
+ {
+ if (handler == null)
+ handler = base;
+ this.dtdHandler = handler;
+ }
- /**
- * <b>SAX2</b>: Returns the object used to receive callbacks for XML
- * errors of all levels (fatal, nonfatal, warning); this is never null;
- */
- public ErrorHandler getErrorHandler()
- {
- return (errorHandler == base) ? null : errorHandler;
- }
- /**
- * <b>SAX1, SAX2</b>: Auxiliary API to parse an XML document, used mostly
- * when no URI is available.
- * If you want anything useful to happen, you should set
- * at least one type of handler.
- * @param source The XML input source. Don't set 'encoding' unless
- * you know for a fact that it's correct.
- * @see #setEntityResolver
- * @see #setDTDHandler
- * @see #setContentHandler
- * @see #setErrorHandler
- * @exception SAXException The handlers may throw any SAXException,
- * and the parser normally throws SAXParseException objects.
- * @exception IOException IOExceptions are normally through through
- * the parser if there are problems reading the source document.
- */
- public void parse(InputSource source)
- throws SAXException, IOException
- {
- synchronized (base)
- {
- parser = new XmlParser();
- if (namespaces)
- {
- prefixStack = new NamespaceSupport();
- }
- else if (!xmlNames)
- {
- throw new IllegalStateException();
- }
- parser.setHandler(this);
-
- try
- {
- Reader r = source.getCharacterStream();
- InputStream in = source.getByteStream();
-
- parser.doParse(source.getSystemId(),
- source.getPublicId(),
- r,
- in,
- source.getEncoding());
- }
- catch (SAXException e)
- {
- throw e;
- }
- catch (IOException e)
- {
- throw e;
- }
- catch (RuntimeException e)
- {
- throw e;
- }
- catch (Exception e)
- {
- throw new SAXParseException(e.getMessage(), this, e);
- }
- finally
- {
- contentHandler.endDocument();
- reset();
- }
- }
- }
-
- /**
- * <b>SAX1, SAX2</b>: Preferred API to parse an XML document, using a
- * system identifier (URI).
- */
- public void parse(String systemId)
- throws SAXException, IOException
- {
- parse(new InputSource(systemId));
- }
+ /**
+ * <b>SAX1</b>: Set the document handler for this parser. If a
+ * content handler was set, this document handler will supplant it.
+ * The parser is set to report all XML 1.0 names rather than to
+ * filter out "xmlns" attributes (the "namespace-prefixes" feature
+ * is set to true).
+ *
+ * @deprecated SAX2 programs should use the XMLReader interface
+ * and a ContentHandler.
+ *
+ * @param handler The object to receive document events.
+ */
+ public void setDocumentHandler (DocumentHandler handler)
+ {
+ contentHandler = new Adapter (handler);
+ xmlNames = true;
+ }
- //
- // Implementation of SAX2 "XMLReader" interface
- //
- static final String FEATURE = "http://xml.org/sax/features/";
- static final String PROPERTY = "http://xml.org/sax/properties/";
-
- /**
- * <b>SAX2</b>: Tells the value of the specified feature flag.
- *
- * @exception SAXNotRecognizedException thrown if the feature flag
- * is neither built in, nor yet assigned.
- */
- public boolean getFeature(String featureId)
- throws SAXNotRecognizedException, SAXNotSupportedException
- {
- if ((FEATURE + "validation").equals(featureId))
- {
- return false;
- }
+ /**
+ * <b>SAX2</b>: Returns the object used to report the logical
+ * content of an XML document.
+ */
+ public ContentHandler getContentHandler ()
+ {
+ return contentHandler == base ? null : contentHandler;
+ }
- // external entities (both types) are optionally included
- if ((FEATURE + "external-general-entities").equals(featureId))
- {
- return extGE;
- }
- if ((FEATURE + "external-parameter-entities").equals(featureId))
- {
- return extPE;
- }
-
- // element/attribute names are as written in document; no mangling
- if ((FEATURE + "namespace-prefixes").equals(featureId))
- {
- return xmlNames;
- }
+ /**
+ * <b>SAX2</b>: Assigns the object used to report the logical
+ * content of an XML document. If a document handler was set,
+ * this content handler will supplant it (but XML 1.0 style name
+ * reporting may remain enabled).
+ */
+ public void setContentHandler (ContentHandler handler)
+ {
+ if (handler == null)
+ handler = base;
+ contentHandler = handler;
+ }
- // report element/attribute namespaces?
- if ((FEATURE + "namespaces").equals(featureId))
- {
- return namespaces;
- }
+ /**
+ * <b>SAX1, SAX2</b>: Set the error handler for this parser.
+ * @param handler The object to receive error events.
+ */
+ public void setErrorHandler (ErrorHandler handler)
+ {
+ if (handler == null)
+ handler = base;
+ this.errorHandler = handler;
+ }
- // all PEs and GEs are reported
- if ((FEATURE + "lexical-handler/parameter-entities").equals(featureId))
- {
- return true;
- }
+ /**
+ * <b>SAX2</b>: Returns the object used to receive callbacks for XML
+ * errors of all levels (fatal, nonfatal, warning); this is never null;
+ */
+ public ErrorHandler getErrorHandler ()
+ { return errorHandler == base ? null : errorHandler; }
+
+
+ /**
+ * <b>SAX1, SAX2</b>: Auxiliary API to parse an XML document, used mostly
+ * when no URI is available.
+ * If you want anything useful to happen, you should set
+ * at least one type of handler.
+ * @param source The XML input source. Don't set 'encoding' unless
+ * you know for a fact that it's correct.
+ * @see #setEntityResolver
+ * @see #setDTDHandler
+ * @see #setContentHandler
+ * @see #setErrorHandler
+ * @exception SAXException The handlers may throw any SAXException,
+ * and the parser normally throws SAXParseException objects.
+ * @exception IOException IOExceptions are normally through through
+ * the parser if there are problems reading the source document.
+ */
+ public void parse (InputSource source)
+ throws SAXException, IOException
+ {
+ synchronized (base) {
+ parser = new XmlParser ();
+ if (namespaces)
+ prefixStack = new NamespaceSupport ();
+ else if (!xmlNames)
+ throw new IllegalStateException ();
+ parser.setHandler (this);
+
+ try {
+
+ Reader r = source.getCharacterStream();
+ InputStream in = source.getByteStream();
+
+
+ parser.doParse (source.getSystemId (),
+ source.getPublicId (),
+ r,
+ in,
+ source.getEncoding ());
+ } catch (SAXException e) {
+ throw e;
+ } catch (IOException e) {
+ throw e;
+ } catch (RuntimeException e) {
+ throw e;
+ } catch (Exception e) {
+ throw new SAXParseException (e.getMessage (), this, e);
+ } finally {
+ contentHandler.endDocument ();
+ reset();
+ }
+ }
+ }
- // default is true
- if ((FEATURE + "string-interning").equals(featureId))
- {
- return stringInterning;
- }
-
- // EXTENSIONS 1.1
-
- // always returns isSpecified info
- if ((FEATURE + "use-attributes2").equals(featureId))
- {
- return true;
- }
-
- // meaningful between startDocument/endDocument
- if ((FEATURE + "is-standalone").equals(featureId))
- {
- if (parser == null)
- {
- throw new SAXNotSupportedException(featureId);
- }
- return parser.isStandalone();
- }
- // optionally don't absolutize URIs in declarations
- if ((FEATURE + "resolve-dtd-uris").equals(featureId))
- {
- return resolveAll;
- }
+ /**
+ * <b>SAX1, SAX2</b>: Preferred API to parse an XML document, using a
+ * system identifier (URI).
+ */
+ public void parse (String systemId)
+ throws SAXException, IOException
+ {
+ parse (new InputSource (systemId));
+ }
- // optionally use resolver2 interface methods, if possible
- if ((FEATURE + "use-entity-resolver2").equals(featureId))
- {
- return useResolver2;
- }
-
- throw new SAXNotRecognizedException(featureId);
- }
+ //
+ // Implementation of SAX2 "XMLReader" interface
+ //
+ static final String FEATURE = "http://xml.org/sax/features/";
+ static final String PROPERTY = "http://xml.org/sax/properties/";
+
+ /**
+ * <b>SAX2</b>: Tells the value of the specified feature flag.
+ *
+ * @exception SAXNotRecognizedException thrown if the feature flag
+ * is neither built in, nor yet assigned.
+ */
+ public boolean getFeature (String featureId)
+ throws SAXNotRecognizedException, SAXNotSupportedException
+ {
+ if ((FEATURE + "validation").equals (featureId))
+ return false;
+
+ // external entities (both types) are optionally included
+ if ((FEATURE + "external-general-entities").equals (featureId))
+ return extGE;
+ if ((FEATURE + "external-parameter-entities") .equals (featureId))
+ return extPE;
+
+ // element/attribute names are as written in document; no mangling
+ if ((FEATURE + "namespace-prefixes").equals (featureId))
+ return xmlNames;
+
+ // report element/attribute namespaces?
+ if ((FEATURE + "namespaces").equals (featureId))
+ return namespaces;
+
+ // all PEs and GEs are reported
+ if ((FEATURE + "lexical-handler/parameter-entities").equals (featureId))
+ return true;
+
+ // default is true
+ if ((FEATURE + "string-interning").equals (featureId))
+ return stringInterning;
+
+ // EXTENSIONS 1.1
+
+ // always returns isSpecified info
+ if ((FEATURE + "use-attributes2").equals (featureId))
+ return true;
+
+ // meaningful between startDocument/endDocument
+ if ((FEATURE + "is-standalone").equals (featureId)) {
+ if (parser == null)
+ throw new SAXNotSupportedException (featureId);
+ return parser.isStandalone ();
+ }
+
+ // optionally don't absolutize URIs in declarations
+ if ((FEATURE + "resolve-dtd-uris").equals (featureId))
+ return resolveAll;
+
+ // optionally use resolver2 interface methods, if possible
+ if ((FEATURE + "use-entity-resolver2").equals (featureId))
+ return useResolver2;
+
+ throw new SAXNotRecognizedException (featureId);
+ }
- // package private
- DeclHandler getDeclHandler()
- {
- return declHandler;
- }
+ // package private
+ DeclHandler getDeclHandler () { return declHandler; }
- // package private
- boolean resolveURIs()
- {
- return resolveAll;
- }
+ // package private
+ boolean resolveURIs () { return resolveAll; }
- /**
- * <b>SAX2</b>: Returns the specified property.
- *
- * @exception SAXNotRecognizedException thrown if the property value
- * is neither built in, nor yet stored.
- */
- public Object getProperty(String propertyId)
+ /**
+ * <b>SAX2</b>: Returns the specified property.
+ *
+ * @exception SAXNotRecognizedException thrown if the property value
+ * is neither built in, nor yet stored.
+ */
+ public Object getProperty (String propertyId)
throws SAXNotRecognizedException
- {
- if ((PROPERTY + "declaration-handler").equals(propertyId))
- {
- return (declHandler == base) ? null : declHandler;
- }
-
- if ((PROPERTY + "lexical-handler").equals(propertyId))
- {
- return (lexicalHandler == base) ? null : lexicalHandler;
- }
-
- // unknown properties
- throw new SAXNotRecognizedException(propertyId);
- }
+ {
+ if ((PROPERTY + "declaration-handler").equals (propertyId))
+ return declHandler == base ? null : declHandler;
+
+ if ((PROPERTY + "lexical-handler").equals (propertyId))
+ return lexicalHandler == base ? null : lexicalHandler;
+
+ // unknown properties
+ throw new SAXNotRecognizedException (propertyId);
+ }
- /**
- * <b>SAX2</b>: Sets the state of feature flags in this parser. Some
- * built-in feature flags are mutable.
- */
- public void setFeature(String featureId, boolean value)
+ /**
+ * <b>SAX2</b>: Sets the state of feature flags in this parser. Some
+ * built-in feature flags are mutable.
+ */
+ public void setFeature (String featureId, boolean value)
throws SAXNotRecognizedException, SAXNotSupportedException
- {
- boolean state;
-
- // Features with a defined value, we just change it if we can.
- state = getFeature (featureId);
-
- if (state == value)
- {
- return;
- }
- if (parser != null)
- {
- throw new SAXNotSupportedException("not while parsing");
- }
-
- if ((FEATURE + "namespace-prefixes").equals(featureId))
- {
- // in this implementation, this only affects xmlns reporting
- xmlNames = value;
- // forcibly prevent illegal parser state
- if (!xmlNames)
- {
- namespaces = true;
- }
- return;
- }
-
- if ((FEATURE + "namespaces").equals(featureId))
- {
- namespaces = value;
- // forcibly prevent illegal parser state
- if (!namespaces)
- {
- xmlNames = true;
- }
- return;
- }
-
- if ((FEATURE + "external-general-entities").equals(featureId))
- {
- extGE = value;
- return;
- }
- if ((FEATURE + "external-parameter-entities").equals(featureId))
- {
- extPE = value;
- return;
- }
- if ((FEATURE + "resolve-dtd-uris").equals(featureId))
- {
- resolveAll = value;
- return;
- }
-
- if ((FEATURE + "use-entity-resolver2").equals(featureId))
- {
- useResolver2 = value;
- return;
- }
-
- throw new SAXNotRecognizedException(featureId);
- }
+ {
+ boolean state;
+
+ // Features with a defined value, we just change it if we can.
+ state = getFeature (featureId);
+
+ if (state == value)
+ return;
+ if (parser != null)
+ throw new SAXNotSupportedException ("not while parsing");
+
+ if ((FEATURE + "namespace-prefixes").equals (featureId)) {
+ // in this implementation, this only affects xmlns reporting
+ xmlNames = value;
+ // forcibly prevent illegal parser state
+ if (!xmlNames)
+ namespaces = true;
+ return;
+ }
+
+ if ((FEATURE + "namespaces").equals (featureId)) {
+ namespaces = value;
+ // forcibly prevent illegal parser state
+ if (!namespaces)
+ xmlNames = true;
+ return;
+ }
+
+ if ((FEATURE + "external-general-entities").equals (featureId)) {
+ extGE = value;
+ return;
+ }
+ if ((FEATURE + "external-parameter-entities") .equals (featureId)) {
+ extPE = value;
+ return;
+ }
+ if ((FEATURE + "resolve-dtd-uris").equals (featureId)) {
+ resolveAll = value;
+ return;
+ }
+
+ if ((FEATURE + "use-entity-resolver2").equals (featureId)) {
+ useResolver2 = value;
+ return;
+ }
+
+ throw new SAXNotRecognizedException (featureId);
+ }
- /**
- * <b>SAX2</b>: Assigns the specified property. Like SAX1 handlers,
- * these may be changed at any time.
- */
- public void setProperty(String propertyId, Object value)
+ /**
+ * <b>SAX2</b>: Assigns the specified property. Like SAX1 handlers,
+ * these may be changed at any time.
+ */
+ public void setProperty (String propertyId, Object value)
throws SAXNotRecognizedException, SAXNotSupportedException
- {
- // see if the property is recognized
- getProperty(propertyId);
-
- // Properties with a defined value, we just change it if we can.
-
- if ((PROPERTY + "declaration-handler").equals(propertyId))
- {
- if (value == null)
- {
- declHandler = base;
- }
- else if (!(value instanceof DeclHandler))
- {
- throw new SAXNotSupportedException(propertyId);
- }
- else
- {
- declHandler = (DeclHandler) value;
- }
- return ;
- }
-
- if ((PROPERTY + "lexical-handler").equals(propertyId))
- {
- if (value == null)
- {
- lexicalHandler = base;
- }
- else if (!(value instanceof LexicalHandler))
- {
- throw new SAXNotSupportedException(propertyId);
- }
- else
- {
- lexicalHandler = (LexicalHandler) value;
- }
- return;
- }
-
- throw new SAXNotSupportedException(propertyId);
- }
+ {
+ // see if the property is recognized
+ getProperty (propertyId);
+
+ // Properties with a defined value, we just change it if we can.
+
+ if ((PROPERTY + "declaration-handler").equals (propertyId)) {
+ if (value == null)
+ declHandler = base;
+ else if (! (value instanceof DeclHandler))
+ throw new SAXNotSupportedException (propertyId);
+ else
+ declHandler = (DeclHandler) value;
+ return ;
+ }
+
+ if ((PROPERTY + "lexical-handler").equals (propertyId)) {
+ if (value == null)
+ lexicalHandler = base;
+ else if (! (value instanceof LexicalHandler))
+ throw new SAXNotSupportedException (propertyId);
+ else
+ lexicalHandler = (LexicalHandler) value;
+ return ;
+ }
+
+ throw new SAXNotSupportedException (propertyId);
+ }
- //
- // This is where the driver receives XmlParser callbacks and translates
- // them into SAX callbacks. Some more callbacks have been added for
- // SAX2 support.
- //
- void startDocument()
- throws SAXException
- {
- contentHandler.setDocumentLocator(this);
- contentHandler.startDocument();
- attributesList.clear();
- }
+ //
+ // This is where the driver receives XmlParser callbacks and translates
+ // them into SAX callbacks. Some more callbacks have been added for
+ // SAX2 support.
+ //
- void xmlDecl(String version,
- String encoding,
- boolean standalone,
- String inputEncoding)
+ void startDocument ()
throws SAXException
- {
- if (contentHandler instanceof ContentHandler2)
- {
- ((ContentHandler2) contentHandler).xmlDecl(version,
- encoding,
- standalone,
- inputEncoding);
- }
- }
+ {
+ contentHandler.setDocumentLocator (this);
+ contentHandler.startDocument ();
+ attributesList.clear ();
+ }
+
+ void xmlDecl(String version,
+ String encoding,
+ boolean standalone,
+ String inputEncoding)
+ throws SAXException
+ {
+ if (contentHandler instanceof ContentHandler2)
+ {
+ ((ContentHandler2) contentHandler).xmlDecl(version,
+ encoding,
+ standalone,
+ inputEncoding);
+ }
+ }
- void skippedEntity(String name)
+ void skippedEntity (String name)
throws SAXException
- {
- contentHandler.skippedEntity(name);
- }
+ { contentHandler.skippedEntity (name); }
- InputSource getExternalSubset(String name, String baseURI)
+ InputSource getExternalSubset (String name, String baseURI)
throws SAXException, IOException
- {
- if (resolver2 == null || !useResolver2 || !extPE)
- {
- return null;
- }
- return resolver2.getExternalSubset(name, baseURI);
- }
+ {
+ if (resolver2 == null || !useResolver2 || !extPE)
+ return null;
+ return resolver2.getExternalSubset (name, baseURI);
+ }
- InputSource resolveEntity(boolean isPE, String name,
- InputSource in, String baseURI)
+ InputSource resolveEntity (boolean isPE, String name,
+ InputSource in, String baseURI)
throws SAXException, IOException
- {
- InputSource source;
-
- // external entities might be skipped
- if (isPE && !extPE)
- {
- return null;
- }
- if (!isPE && !extGE)
- {
- return null;
- }
-
- // ... or not
- lexicalHandler.startEntity(name);
- if (resolver2 != null && useResolver2)
- {
- source = resolver2.resolveEntity(name, in.getPublicId(),
- baseURI, in.getSystemId());
- if (source == null)
- {
- in.setSystemId(absolutize(baseURI,
- in.getSystemId(), false));
- source = in;
- }
- }
- else
- {
- in.setSystemId(absolutize(baseURI, in.getSystemId(), false));
- source = entityResolver.resolveEntity(in.getPublicId(),
- in.getSystemId());
- if (source == null)
- {
- source = in;
- }
- }
- startExternalEntity(name, source.getSystemId(), true);
- return source;
- }
+ {
+ InputSource source;
+
+ // external entities might be skipped
+ if (isPE && !extPE)
+ return null;
+ if (!isPE && !extGE)
+ return null;
+
+ // ... or not
+ lexicalHandler.startEntity (name);
+ if (resolver2 != null && useResolver2) {
+ source = resolver2.resolveEntity (name, in.getPublicId (),
+ baseURI, in.getSystemId ());
+ if (source == null) {
+ in.setSystemId (absolutize (baseURI,
+ in.getSystemId (), false));
+ source = in;
+ }
+ } else {
+ in.setSystemId (absolutize (baseURI, in.getSystemId (), false));
+ source = entityResolver.resolveEntity (in.getPublicId (),
+ in.getSystemId ());
+ if (source == null)
+ source = in;
+ }
+ startExternalEntity (name, source.getSystemId (), true);
+ return source;
+ }
- // absolutize a system ID relative to the specified base URI
- // (temporarily) package-visible for external entity decls
- String absolutize(String baseURI, String systemId, boolean nice)
+ // absolutize a system ID relative to the specified base URI
+ // (temporarily) package-visible for external entity decls
+ String absolutize (String baseURI, String systemId, boolean nice)
throws MalformedURLException, SAXException
- {
- // FIXME normalize system IDs -- when?
- // - Convert to UTF-8
- // - Map reserved and non-ASCII characters to %HH
-
- try
- {
- if (baseURI == null)
- {
- if (XmlParser.uriWarnings)
- {
- warn ("No base URI; hope this SYSTEM id is absolute: "
- + systemId);
- }
- return new URL(systemId).toString();
- }
- else
- {
- return new URL(new URL(baseURI), systemId).toString();
- }
- }
- catch (MalformedURLException e)
- {
- // Let unknown URI schemes pass through unless we need
- // the JVM to map them to i/o streams for us...
- if (!nice)
- {
- throw e;
- }
-
- // sometimes sysids for notations or unparsed entities
- // aren't really URIs...
- warn("Can't absolutize SYSTEM id: " + e.getMessage());
- return systemId;
- }
- }
+ {
+ // FIXME normalize system IDs -- when?
+ // - Convert to UTF-8
+ // - Map reserved and non-ASCII characters to %HH
+
+ try {
+ if (baseURI == null) {
+ warn ("No base URI; hope this SYSTEM id is absolute: "
+ + systemId);
+ return new URL (systemId).toString ();
+ } else
+ return new URL (new URL (baseURI), systemId).toString ();
+
+ } catch (MalformedURLException e) {
+
+ // Let unknown URI schemes pass through unless we need
+ // the JVM to map them to i/o streams for us...
+ if (!nice)
+ throw e;
+
+ // sometimes sysids for notations or unparsed entities
+ // aren't really URIs...
+ warn ("Can't absolutize SYSTEM id: " + e.getMessage ());
+ return systemId;
+ }
+ }
- void startExternalEntity(String name, String systemId, boolean stackOnly)
+ void startExternalEntity (String name, String systemId,
+ boolean stackOnly)
throws SAXException
- {
- // The following warning was deleted because the application has the
- // option of not setting systemId. Sun's JAXP or Xerces seems to
- // ignore this case.
- /*
- if (systemId == null)
- warn ("URI was not reported to parser for entity " + name);
- */
- if (!stackOnly) // spliced [dtd] needs startEntity
- {
- lexicalHandler.startEntity(name);
- }
- entityStack.push(systemId);
- }
+ {
+ // The following warning was deleted because the application has the
+ // option of not setting systemId. Sun's JAXP or Xerces seems to
+ // ignore this case.
+ /*
+ if (systemId == null)
+ warn ("URI was not reported to parser for entity " + name);
+ */
+ if (!stackOnly) // spliced [dtd] needs startEntity
+ lexicalHandler.startEntity (name);
+ entityStack.push (systemId);
+ }
- void endExternalEntity(String name)
+ void endExternalEntity (String name)
throws SAXException
- {
- if (!"[document]".equals(name))
- {
- lexicalHandler.endEntity(name);
- }
- entityStack.pop();
- }
+ {
+ if (!"[document]".equals (name))
+ lexicalHandler.endEntity (name);
+ entityStack.pop ();
+ }
- void startInternalEntity(String name)
+ void startInternalEntity (String name)
throws SAXException
- {
- lexicalHandler.startEntity(name);
- }
+ {
+ lexicalHandler.startEntity (name);
+ }
- void endInternalEntity(String name)
+ void endInternalEntity (String name)
throws SAXException
- {
- lexicalHandler.endEntity(name);
- }
+ {
+ lexicalHandler.endEntity (name);
+ }
- void doctypeDecl(String name, String publicId, String systemId)
- throws SAXException
- {
- lexicalHandler.startDTD(name, publicId, systemId);
-
- // ... the "name" is a declaration and should be given
- // to the DeclHandler (but sax2 doesn't).
-
- // the IDs for the external subset are lexical details,
- // as are the contents of the internal subset; but sax2
- // doesn't provide the internal subset "pre-parse"
- }
-
- void notationDecl(String name, String publicId, String systemId,
- String baseUri)
+ void doctypeDecl (String name, String publicId, String systemId)
throws SAXException
- {
- try
- {
- dtdHandler.notationDecl(name, publicId,
- (resolveAll && systemId != null)
- ? absolutize(baseUri, systemId, true)
- : systemId);
- }
- catch (IOException e)
- {
- // "can't happen"
- throw new SAXParseException(e.getMessage(), this, e);
- }
- }
+ {
+ lexicalHandler.startDTD (name, publicId, systemId);
+
+ // ... the "name" is a declaration and should be given
+ // to the DeclHandler (but sax2 doesn't).
+
+ // the IDs for the external subset are lexical details,
+ // as are the contents of the internal subset; but sax2
+ // doesn't provide the internal subset "pre-parse"
+ }
- void unparsedEntityDecl(String name, String publicId, String systemId,
- String baseUri, String notation)
+ void notationDecl (String name, String ids [])
throws SAXException
- {
- try
- {
- dtdHandler.unparsedEntityDecl(name, publicId,
- resolveAll
- ? absolutize(baseUri, systemId, true)
- : systemId,
- notation);
- }
- catch (IOException e)
- {
- // "can't happen"
- throw new SAXParseException(e.getMessage(), this, e);
- }
- }
+ {
+ try {
+ dtdHandler.notationDecl (name, ids [0],
+ (resolveAll && ids [1] != null)
+ ? absolutize (ids [2], ids [1], true)
+ : ids [1]);
+ } catch (IOException e) {
+ // "can't happen"
+ throw new SAXParseException (e.getMessage (), this, e);
+ }
+ }
- void endDoctype()
+ void unparsedEntityDecl (String name, String ids [], String notation)
throws SAXException
- {
- lexicalHandler.endDTD();
- }
+ {
+ try {
+ dtdHandler.unparsedEntityDecl (name, ids [0],
+ resolveAll
+ ? absolutize (ids [2], ids [1], true)
+ : ids [1],
+ notation);
+ } catch (IOException e) {
+ // "can't happen"
+ throw new SAXParseException (e.getMessage (), this, e);
+ }
+ }
- private void declarePrefix(String prefix, String uri)
+ void endDoctype ()
throws SAXException
- {
- int index = uri.indexOf(':');
-
- // many versions of nwalsh docbook stylesheets
- // have bogus URLs; so this can't be an error...
- if (index < 1 && uri.length() != 0)
- {
- warn("relative URI for namespace: " + uri);
- }
+ {
+ lexicalHandler.endDTD ();
+ }
- // FIXME: char [0] must be ascii alpha; chars [1..index]
- // must be ascii alphanumeric or in "+-." [RFC 2396]
-
- //Namespace Constraints
- //name for xml prefix must be http://www.w3.org/XML/1998/namespace
- boolean prefixEquality = prefix.equals("xml");
- boolean uriEquality = uri.equals("http://www.w3.org/XML/1998/namespace");
- if ((prefixEquality || uriEquality) && !(prefixEquality && uriEquality))
- {
- fatal("xml is by definition bound to the namespace name " +
- "http://www.w3.org/XML/1998/namespace");
- }
-
- //xmlns prefix declaration is illegal but xml prefix declaration is llegal...
- if (prefixEquality && uriEquality)
- {
- return;
- }
-
- //name for xmlns prefix must be http://www.w3.org/2000/xmlns/
- prefixEquality = prefix.equals("xmlns");
- uriEquality = uri.equals("http://www.w3.org/2000/xmlns/");
- if ((prefixEquality || uriEquality) && !(prefixEquality && uriEquality))
- {
- fatal("http://www.w3.org/2000/xmlns/ is by definition bound" +
- " to prefix xmlns");
- }
-
- //even if the uri is http://www.w3.org/2000/xmlns/
- // it is illegal to declare it
- if (prefixEquality && uriEquality)
- {
- fatal ("declaring the xmlns prefix is illegal");
- }
-
- uri = uri.intern();
- prefixStack.declarePrefix(prefix, uri);
- contentHandler.startPrefixMapping(prefix, uri);
- }
+ private void declarePrefix (String prefix, String uri)
+ throws SAXException
+ {
+ int index = uri.indexOf (':');
+
+ // many versions of nwalsh docbook stylesheets
+ // have bogus URLs; so this can't be an error...
+ if (index < 1 && uri.length () != 0)
+ warn ("relative URI for namespace: " + uri);
+
+ // FIXME: char [0] must be ascii alpha; chars [1..index]
+ // must be ascii alphanumeric or in "+-." [RFC 2396]
+
+ //Namespace Constraints
+ //name for xml prefix must be http://www.w3.org/XML/1998/namespace
+ boolean prefixEquality = prefix.equals("xml");
+ boolean uriEquality = uri.equals("http://www.w3.org/XML/1998/namespace");
+ if ((prefixEquality || uriEquality) && !(prefixEquality && uriEquality))
+ fatal ("xml is by definition bound to the namespace name " +
+ "http://www.w3.org/XML/1998/namespace");
+
+ //xmlns prefix declaration is illegal but xml prefix declaration is llegal...
+ if (prefixEquality && uriEquality)
+ return;
+
+ //name for xmlns prefix must be http://www.w3.org/2000/xmlns/
+ prefixEquality = prefix.equals("xmlns");
+ uriEquality = uri.equals("http://www.w3.org/2000/xmlns/");
+ if ((prefixEquality || uriEquality) && !(prefixEquality && uriEquality))
+ fatal("http://www.w3.org/2000/xmlns/ is by definition bound" +
+ " to prefix xmlns");
+
+ //even if the uri is http://www.w3.org/2000/xmlns/ it is illegal to declare it
+ if (prefixEquality && uriEquality)
+ fatal ("declaring the xmlns prefix is illegal");
+
+ uri = uri.intern ();
+ prefixStack.declarePrefix (prefix, uri);
+ contentHandler.startPrefixMapping (prefix, uri);
+ }
- void attribute(String qname, String value, boolean isSpecified)
+ void attribute (String qname, String value, boolean isSpecified)
throws SAXException
- {
- if (!attributes)
- {
- attributes = true;
- if (namespaces)
- {
- prefixStack.pushContext();
- }
- }
-
- // process namespace decls immediately;
- // then maybe forget this as an attribute
- if (namespaces)
- {
- int index;
-
- // default NS declaration?
- if (stringInterning)
- {
- if ("xmlns" == qname)
- {
- declarePrefix("", value);
- if (!xmlNames)
- {
- return;
- }
- }
- // NS prefix declaration?
- else if ((index = qname.indexOf(':')) == 5
- && qname.startsWith("xmlns"))
- {
- String prefix = qname.substring(6);
-
- if (prefix.equals(""))
- {
- fatal("missing prefix " +
- "in namespace declaration attribute");
- }
- if (value.length() == 0)
- {
- verror("missing URI in namespace declaration attribute: "
- + qname);
- }
- else
- {
- declarePrefix(prefix, value);
- }
- if (!xmlNames)
- {
- return;
- }
- }
- }
- else
- {
- if ("xmlns".equals(qname))
- {
- declarePrefix("", value);
- if (!xmlNames)
- {
- return;
- }
- }
- // NS prefix declaration?
- else if ((index = qname.indexOf(':')) == 5
- && qname.startsWith("xmlns"))
- {
- String prefix = qname.substring(6);
-
- if (value.length() == 0)
- {
- verror("missing URI in namespace decl attribute: "
- + qname);
- }
- else
- {
- declarePrefix(prefix, value);
- }
- if (!xmlNames)
- {
- return;
- }
- }
- }
+ {
+ if (!attributes) {
+ attributes = true;
+ if (namespaces)
+ prefixStack.pushContext ();
+ }
+
+ // process namespace decls immediately;
+ // then maybe forget this as an attribute
+ if (namespaces) {
+ int index;
+
+ // default NS declaration?
+ if (getFeature (FEATURE + "string-interning")) {
+ if ("xmlns" == qname) {
+ declarePrefix ("", value);
+ if (!xmlNames)
+ return;
+ }
+ // NS prefix declaration?
+ else if ((index = qname.indexOf (':')) == 5
+ && qname.startsWith ("xmlns")) {
+ String prefix = qname.substring (6);
+
+ if (prefix.equals(""))
+ fatal ("missing prefix in namespace declaration attribute");
+ if (value.length () == 0) {
+ verror ("missing URI in namespace declaration attribute: "
+ + qname);
+ } else
+ declarePrefix (prefix, value);
+ if (!xmlNames)
+ return;
+ }
+ } else {
+ if ("xmlns".equals(qname)) {
+ declarePrefix ("", value);
+ if (!xmlNames)
+ return;
+ }
+ // NS prefix declaration?
+ else if ((index = qname.indexOf (':')) == 5
+ && qname.startsWith ("xmlns")) {
+ String prefix = qname.substring (6);
+
+ if (value.length () == 0) {
+ verror ("missing URI in namespace decl attribute: "
+ + qname);
+ } else
+ declarePrefix (prefix, value);
+ if (!xmlNames)
+ return;
+ }
}
- // remember this attribute ...
- attributeCount++;
-
- // attribute type comes from querying parser's DTD records
- attributesList.add(new Attribute(qname, value, isSpecified));
-
}
-
- void startElement(String elname)
+ // remember this attribute ...
+
+ attributeCount++;
+
+ // attribute type comes from querying parser's DTD records
+ attributesList.add(new Attribute(qname, value, isSpecified));
+
+ }
+
+ void startElement (String elname)
throws SAXException
- {
- ContentHandler handler = contentHandler;
+ {
+ ContentHandler handler = contentHandler;
+
+ //
+ // NOTE: this implementation of namespace support adds something
+ // like six percent to parsing CPU time, in a large (~50 MB)
+ // document that doesn't use namespaces at all. (Measured by PC
+ // sampling, with a bug where endElement processing was omitted.)
+ // [Measurement referred to older implementation, older JVM ...]
+ //
+ // It ought to become notably faster in such cases. Most
+ // costs are the prefix stack calling Hashtable.get() (2%),
+ // String.hashCode() (1.5%) and about 1.3% each for pushing
+ // the context, and two chunks of name processing.
+ //
+
+ if (!attributes) {
+ if (namespaces)
+ prefixStack.pushContext ();
+ } else if (namespaces) {
+
+ // now we can patch up namespace refs; we saw all the
+ // declarations, so now we'll do the Right Thing
+ Iterator itt = attributesList.iterator ();
+ while(itt.hasNext())
+ {
+ Attribute attribute = (Attribute) itt.next();
+ String qname = attribute.name;
+ int index;
+
+ // default NS declaration?
+ if (getFeature (FEATURE + "string-interning")) {
+ if ("xmlns" == qname)
+ continue;
+ } else {
+ if ("xmlns".equals(qname))
+ continue;
+ }
+ //Illegal in the new Namespaces Draft
+ //should it be only in 1.1 docs??
+ if (qname.equals (":"))
+ fatal ("namespace names consisting of a single colon " +
+ "character are invalid");
+ index = qname.indexOf (':');
+
+ // NS prefix declaration?
+ if (index == 5 && qname.startsWith ("xmlns"))
+ continue;
+
+ // it's not a NS decl; patch namespace info items
+ if (prefixStack.processName (qname, nsTemp, true) == null)
+ fatal ("undeclared attribute prefix in: " + qname);
+ else {
+ attribute.nameSpace = nsTemp[0];
+ attribute.localName = nsTemp[1];
+ }
+ }
+ }
+
+ // save element name so attribute callbacks work
+ elementName = elname;
+ if (namespaces) {
+ if (prefixStack.processName (elname, nsTemp, false) == null) {
+ fatal ("undeclared element prefix in: " + elname);
+ nsTemp [0] = nsTemp [1] = "";
+ }
+ handler.startElement (nsTemp [0], nsTemp [1], elname, this);
+ } else
+ handler.startElement ("", "", elname, this);
+ // elementName = null;
+
+ // elements with no attributes are pretty common!
+ if (attributes) {
+ attributesList.clear();
+ attributeCount = 0;
+ attributes = false;
+ }
+ }
- //
- // NOTE: this implementation of namespace support adds something
- // like six percent to parsing CPU time, in a large (~50 MB)
- // document that doesn't use namespaces at all. (Measured by PC
- // sampling, with a bug where endElement processing was omitted.)
- // [Measurement referred to older implementation, older JVM ...]
- //
- // It ought to become notably faster in such cases. Most
- // costs are the prefix stack calling Hashtable.get() (2%),
- // String.hashCode() (1.5%) and about 1.3% each for pushing
- // the context, and two chunks of name processing.
- //
-
- if (!attributes)
- {
- if (namespaces)
- {
- prefixStack.pushContext();
- }
- }
- else if (namespaces)
- {
-
- // now we can patch up namespace refs; we saw all the
- // declarations, so now we'll do the Right Thing
- Iterator itt = attributesList.iterator();
- while (itt.hasNext())
- {
- Attribute attribute = (Attribute) itt.next();
- String qname = attribute.name;
- int index;
-
- // default NS declaration?
- if (stringInterning)
- {
- if ("xmlns" == qname)
- {
- continue;
- }
- }
- else
- {
- if ("xmlns".equals(qname))
- {
- continue;
- }
- }
- //Illegal in the new Namespaces Draft
- //should it be only in 1.1 docs??
- if (qname.equals (":"))
- {
- fatal("namespace names consisting of a single colon " +
- "character are invalid");
- }
- index = qname.indexOf(':');
-
- // NS prefix declaration?
- if (index == 5 && qname.startsWith("xmlns"))
- {
- continue;
- }
-
- // it's not a NS decl; patch namespace info items
- if (prefixStack.processName(qname, nsTemp, true) == null)
- {
- fatal("undeclared attribute prefix in: " + qname);
- }
- else
- {
- attribute.nameSpace = nsTemp[0];
- attribute.localName = nsTemp[1];
- }
- }
- }
-
- // save element name so attribute callbacks work
- elementName = elname;
- if (namespaces)
- {
- if (prefixStack.processName(elname, nsTemp, false) == null)
- {
- fatal("undeclared element prefix in: " + elname);
- nsTemp[0] = nsTemp[1] = "";
- }
- handler.startElement(nsTemp[0], nsTemp[1], elname, this);
- }
- else
- {
- handler.startElement("", "", elname, this);
- }
- // elementName = null;
-
- // elements with no attributes are pretty common!
- if (attributes)
- {
- attributesList.clear();
- attributeCount = 0;
- attributes = false;
- }
- }
-
- void endElement(String elname)
+ void endElement (String elname)
throws SAXException
- {
- ContentHandler handler = contentHandler;
+ {
+ ContentHandler handler = contentHandler;
- if (!namespaces)
- {
- handler.endElement("", "", elname);
- return;
- }
- prefixStack.processName(elname, nsTemp, false);
- handler.endElement(nsTemp[0], nsTemp[1], elname);
-
- Enumeration prefixes = prefixStack.getDeclaredPrefixes();
-
- while (prefixes.hasMoreElements())
- {
- handler.endPrefixMapping((String) prefixes.nextElement());
- }
- prefixStack.popContext();
- }
+ if (!namespaces) {
+ handler.endElement ("", "", elname);
+ return;
+ }
+ prefixStack.processName (elname, nsTemp, false);
+ handler.endElement (nsTemp [0], nsTemp [1], elname);
+
+ Enumeration prefixes = prefixStack.getDeclaredPrefixes ();
- void startCDATA()
+ while (prefixes.hasMoreElements ())
+ handler.endPrefixMapping ((String) prefixes.nextElement ());
+ prefixStack.popContext ();
+ }
+
+ void startCDATA ()
throws SAXException
- {
- lexicalHandler.startCDATA();
- }
+ {
+ lexicalHandler.startCDATA ();
+ }
- void charData(char[] ch, int start, int length)
+ void charData (char ch[], int start, int length)
throws SAXException
- {
- contentHandler.characters(ch, start, length);
- }
+ {
+ contentHandler.characters (ch, start, length);
+ }
- void endCDATA()
+ void endCDATA ()
throws SAXException
- {
- lexicalHandler.endCDATA();
- }
+ {
+ lexicalHandler.endCDATA ();
+ }
- void ignorableWhitespace(char[] ch, int start, int length)
+ void ignorableWhitespace (char ch[], int start, int length)
throws SAXException
- {
- contentHandler.ignorableWhitespace(ch, start, length);
- }
+ {
+ contentHandler.ignorableWhitespace (ch, start, length);
+ }
- void processingInstruction(String target, String data)
+ void processingInstruction (String target, String data)
throws SAXException
- {
- contentHandler.processingInstruction(target, data);
- }
+ {
+ contentHandler.processingInstruction (target, data);
+ }
- void comment(char[] ch, int start, int length)
+ void comment (char ch[], int start, int length)
throws SAXException
- {
- if (lexicalHandler != base)
- {
- lexicalHandler.comment(ch, start, length);
- }
- }
+ {
+ if (lexicalHandler != base)
+ lexicalHandler.comment (ch, start, length);
+ }
- void fatal(String message)
+ void fatal (String message)
throws SAXException
- {
- SAXParseException fatal;
-
- fatal = new SAXParseException(message, this);
- errorHandler.fatalError(fatal);
-
- // Even if the application can continue ... we can't!
- throw fatal;
- }
+ {
+ SAXParseException fatal;
+
+ fatal = new SAXParseException (message, this);
+ errorHandler.fatalError (fatal);
+
+ // Even if the application can continue ... we can't!
+ throw fatal;
+ }
- // We can safely report a few validity errors that
- // make layered SAX2 DTD validation more conformant
- void verror(String message)
+ // We can safely report a few validity errors that
+ // make layered SAX2 DTD validation more conformant
+ void verror (String message)
throws SAXException
- {
- SAXParseException err;
-
- err = new SAXParseException(message, this);
- errorHandler.error(err);
- }
-
- void warn(String message)
+ {
+ SAXParseException err;
+
+ err = new SAXParseException (message, this);
+ errorHandler.error (err);
+ }
+
+ void warn (String message)
throws SAXException
- {
- SAXParseException err;
-
- err = new SAXParseException(message, this);
- errorHandler.warning(err);
- }
+ {
+ SAXParseException err;
+
+ err = new SAXParseException (message, this);
+ errorHandler.warning (err);
+ }
- //
- // Implementation of org.xml.sax.Attributes.
- //
-
- /**
- * <b>SAX1 AttributeList, SAX2 Attributes</b> method
- * (don't invoke on parser);
- */
- public int getLength()
- {
- return attributesList.size();
- }
- /**
- * <b>SAX2 Attributes</b> method (don't invoke on parser);
- */
- public String getURI(int index)
- {
- if (index < 0 || index >= attributesList.size())
- {
- return null;
- }
- return ((Attribute) attributesList.get(index)).nameSpace;
- }
+ //
+ // Implementation of org.xml.sax.Attributes.
+ //
- /**
- * <b>SAX2 Attributes</b> method (don't invoke on parser);
- */
- public String getLocalName(int index)
- {
- if (index < 0 || index >= attributesList.size())
- {
- return null;
- }
- Attribute attr = (Attribute) attributesList.get(index);
- // FIXME attr.localName is sometimes null, why?
- if (namespaces && attr.localName == null)
- {
- // XXX fix this here for now
- int ci = attr.name.indexOf(':');
- attr.localName = (ci == -1) ? attr.name :
- attr.name.substring(ci + 1);
- }
- return (attr.localName == null) ? "" : attr.localName;
- }
+ /**
+ * <b>SAX1 AttributeList, SAX2 Attributes</b> method
+ * (don't invoke on parser);
+ */
+ public int getLength ()
+ {
+ return attributesList.size();
+ }
- /**
- * <b>SAX2 Attributes</b> method (don't invoke on parser);
- */
- public String getQName(int index)
- {
- if (index < 0 || index >= attributesList.size())
- {
- return null;
- }
- Attribute attr = (Attribute) attributesList.get(index);
- return (attr.name == null) ? "" : attr.name;
- }
+ /**
+ * <b>SAX2 Attributes</b> method (don't invoke on parser);
+ */
+ public String getURI (int index)
+ {
+ if (index < 0 || index >= attributesList.size())
+ {
+ return null;
+ }
+ return ((Attribute) attributesList.get(index)).nameSpace;
+ }
- /**
- * <b>SAX1 AttributeList</b> method (don't invoke on parser);
- */
- public String getName(int index)
- {
- return getQName(index);
- }
+ /**
+ * <b>SAX2 Attributes</b> method (don't invoke on parser);
+ */
+ public String getLocalName (int index)
+ {
+ if (index < 0 || index >= attributesList.size())
+ {
+ return null;
+ }
+ Attribute attr = (Attribute) attributesList.get(index);
+ // FIXME attr.localName is sometimes null, why?
+ if (namespaces && attr.localName == null)
+ {
+ // XXX fix this here for now
+ int ci = attr.name.indexOf(':');
+ attr.localName = (ci == -1) ? attr.name :
+ attr.name.substring(ci + 1);
+ }
+ return (attr.localName == null) ? "" : attr.localName;
+ }
- /**
- * <b>SAX1 AttributeList, SAX2 Attributes</b> method
- * (don't invoke on parser);
- */
- public String getType(int index)
- {
- if (index < 0 || index >= attributesList.size())
- {
- return null;
- }
- String type = parser.getAttributeType(elementName, getQName(index));
- if (type == null)
- {
- return "CDATA";
- }
- // ... use DeclHandler.attributeDecl to see enumerations
- if (type == "ENUMERATION")
- {
- return "NMTOKEN";
- }
- return type;
- }
+ /**
+ * <b>SAX2 Attributes</b> method (don't invoke on parser);
+ */
+ public String getQName (int index)
+ {
+ if (index < 0 || index >= attributesList.size())
+ {
+ return null;
+ }
+ Attribute attr = (Attribute) attributesList.get(index);
+ return (attr.name == null) ? "" : attr.name;
+ }
- /**
- * <b>SAX1 AttributeList, SAX2 Attributes</b> method
- * (don't invoke on parser);
- */
- public String getValue(int index)
- {
- if (index < 0 || index >= attributesList.size())
- {
- return null;
- }
- return ((Attribute) attributesList.get(index)).value;
- }
+ /**
+ * <b>SAX1 AttributeList</b> method (don't invoke on parser);
+ */
+ public String getName (int index)
+ {
+ return getQName(index);
+ }
- /**
- * <b>SAX2 Attributes</b> method (don't invoke on parser);
- */
- public int getIndex(String uri, String local)
+ /**
+ * <b>SAX1 AttributeList, SAX2 Attributes</b> method
+ * (don't invoke on parser);
+ */
+ public String getType (int index)
{
- int length = getLength();
-
- for (int i = 0; i < length; i++)
- {
- if (!getURI(i).equals(uri))
- {
- continue;
- }
- if (getLocalName(i).equals(local))
- {
- return i;
- }
- }
- return -1;
- }
+ if (index < 0 || index >= attributesList.size())
+ {
+ return null;
+ }
+ String type = parser.getAttributeType(elementName, getQName(index));
+ if (type == null)
+ {
+ return "CDATA";
+ }
+ // ... use DeclHandler.attributeDecl to see enumerations
+ if (type == "ENUMERATION")
+ {
+ return "NMTOKEN";
+ }
+ return type;
+ }
+
- /**
- * <b>SAX2 Attributes</b> method (don't invoke on parser);
- */
- public int getIndex(String xmlName)
- {
- int length = getLength();
-
- for (int i = 0; i < length; i++)
- {
- if (getQName(i).equals(xmlName))
+ /**
+ * <b>SAX1 AttributeList, SAX2 Attributes</b> method
+ * (don't invoke on parser);
+ */
+ public String getValue (int index)
+ {
+ if (index < 0 || index >= attributesList.size())
{
- return i;
+ return null;
}
- }
- return -1;
- }
+ return ((Attribute) attributesList.get(index)).value;
+ }
- /**
- * <b>SAX2 Attributes</b> method (don't invoke on parser);
- */
- public String getType(String uri, String local)
- {
- int index = getIndex(uri, local);
-
- if (index < 0)
- {
- return null;
- }
- return getType(index);
- }
- /**
- * <b>SAX1 AttributeList, SAX2 Attributes</b> method
- * (don't invoke on parser);
- */
- public String getType(String xmlName)
- {
- int index = getIndex(xmlName);
-
- if (index < 0)
- {
- return null;
- }
- return getType(index);
- }
+ /**
+ * <b>SAX2 Attributes</b> method (don't invoke on parser);
+ */
+ public int getIndex (String uri, String local)
+ {
+ int length = getLength();
- /**
- * <b>SAX Attributes</b> method (don't invoke on parser);
- */
- public String getValue(String uri, String local)
- {
- int index = getIndex(uri, local);
-
- if (index < 0)
- {
- return null;
- }
- return getValue(index);
- }
+ for (int i = 0; i < length; i++)
+ {
+ if (!getURI(i).equals(uri))
+ {
+ continue;
+ }
+ if (getLocalName(i).equals(local))
+ {
+ return i;
+ }
+ }
+ return -1;
+ }
- /**
- * <b>SAX1 AttributeList, SAX2 Attributes</b> method
- * (don't invoke on parser);
- */
- public String getValue(String xmlName)
- {
- int index = getIndex(xmlName);
-
- if (index < 0)
- {
- return null;
- }
- return getValue(index);
- }
- //
- // Implementation of org.xml.sax.ext.Attributes2
- //
-
- /** @return false unless the attribute was declared in the DTD.
- * @throws java.lang.ArrayIndexOutOfBoundsException
- * When the supplied index does not identify an attribute.
- */
- public boolean isDeclared(int index)
- {
- if (index < 0 || index >= attributeCount)
- {
- throw new ArrayIndexOutOfBoundsException();
- }
- String type = parser.getAttributeType(elementName, getQName(index));
- return (type != null);
- }
+ /**
+ * <b>SAX2 Attributes</b> method (don't invoke on parser);
+ */
+ public int getIndex (String xmlName)
+ {
+ int length = getLength();
- /** @return false unless the attribute was declared in the DTD.
- * @throws java.lang.IllegalArgumentException
- * When the supplied names do not identify an attribute.
- */
- public boolean isDeclared(String qName)
- {
- int index = getIndex(qName);
- if (index < 0)
- {
- throw new IllegalArgumentException();
- }
- String type = parser.getAttributeType(elementName, qName);
- return (type != null);
- }
+ for (int i = 0; i < length; i++)
+ {
+ if (getQName(i).equals(xmlName))
+ {
+ return i;
+ }
+ }
+ return -1;
+ }
- /** @return false unless the attribute was declared in the DTD.
- * @throws java.lang.IllegalArgumentException
- * When the supplied names do not identify an attribute.
- */
- public boolean isDeclared(String uri, String localName)
- {
- int index = getIndex(uri, localName);
- return isDeclared(index);
- }
- /**
- * <b>SAX-ext Attributes2</b> method (don't invoke on parser);
- */
- public boolean isSpecified(int index)
- {
- return ((Attribute) attributesList.get(index)).specified;
- }
+ /**
+ * <b>SAX2 Attributes</b> method (don't invoke on parser);
+ */
+ public String getType (String uri, String local)
+ {
+ int index = getIndex(uri, local);
- /**
- * <b>SAX-ext Attributes2</b> method (don't invoke on parser);
- */
- public boolean isSpecified(String uri, String local)
- {
- int index = getIndex (uri, local);
- return isSpecified(index);
- }
+ if (index < 0)
+ {
+ return null;
+ }
+ return getType(index);
+ }
- /**
- * <b>SAX-ext Attributes2</b> method (don't invoke on parser);
- */
- public boolean isSpecified(String xmlName)
- {
- int index = getIndex (xmlName);
- return isSpecified(index);
- }
- //
- // Implementation of org.xml.sax.Locator.
- //
+ /**
+ * <b>SAX1 AttributeList, SAX2 Attributes</b> method
+ * (don't invoke on parser);
+ */
+ public String getType (String xmlName)
+ {
+ int index = getIndex(xmlName);
- /**
- * <b>SAX Locator</b> method (don't invoke on parser);
- */
- public String getPublicId()
- {
- return null; // FIXME track public IDs too
- }
+ if (index < 0)
+ {
+ return null;
+ }
+ return getType(index);
+ }
- /**
- * <b>SAX Locator</b> method (don't invoke on parser);
- */
- public String getSystemId()
- {
- if (entityStack.empty())
- {
- return null;
- }
- else
- {
- return (String) entityStack.peek();
- }
- }
- /**
- * <b>SAX Locator</b> method (don't invoke on parser);
- */
- public int getLineNumber()
- {
- return parser.getLineNumber();
- }
+ /**
+ * <b>SAX Attributes</b> method (don't invoke on parser);
+ */
+ public String getValue (String uri, String local)
+ {
+ int index = getIndex(uri, local);
- /**
- * <b>SAX Locator</b> method (don't invoke on parser);
- */
- public int getColumnNumber()
- {
- return parser.getColumnNumber();
- }
+ if (index < 0)
+ {
+ return null;
+ }
+ return getValue(index);
+ }
- // adapter between SAX2 content handler and SAX1 document handler callbacks
- private static class Adapter
- implements ContentHandler
- {
-
- private DocumentHandler docHandler;
- Adapter(DocumentHandler dh)
+ /**
+ * <b>SAX1 AttributeList, SAX2 Attributes</b> method
+ * (don't invoke on parser);
+ */
+ public String getValue (String xmlName)
{
- docHandler = dh;
+ int index = getIndex(xmlName);
+
+ if (index < 0)
+ {
+ return null;
+ }
+ return getValue(index);
}
- public void setDocumentLocator(Locator l)
+
+ //
+ // Implementation of org.xml.sax.ext.Attributes2
+ //
+
+
+ /** @return false unless the attribute was declared in the DTD.
+ * @throws java.lang.ArrayIndexOutOfBoundsException
+ * When the supplied index does not identify an attribute.
+ */
+ public boolean isDeclared (int index)
{
- docHandler.setDocumentLocator(l);
+ if (index < 0 || index >= attributeCount)
+ throw new ArrayIndexOutOfBoundsException ();
+ String type = parser.getAttributeType(elementName, getQName(index));
+ return (type != null);
}
-
- public void startDocument()
- throws SAXException
+
+ /** @return false unless the attribute was declared in the DTD.
+ * @throws java.lang.IllegalArgumentException
+ * When the supplied names do not identify an attribute.
+ */
+ public boolean isDeclared (String qName)
{
- docHandler.startDocument();
+ int index = getIndex (qName);
+ if (index < 0)
+ throw new IllegalArgumentException ();
+ String type = parser.getAttributeType(elementName, qName);
+ return (type != null);
}
-
- public void processingInstruction(String target, String data)
- throws SAXException
+
+ /** @return false unless the attribute was declared in the DTD.
+ * @throws java.lang.IllegalArgumentException
+ * When the supplied names do not identify an attribute.
+ */
+ public boolean isDeclared (String uri, String localName)
{
- docHandler.processingInstruction(target, data);
+ int index = getIndex (uri, localName);
+ return isDeclared(index);
}
-
- public void startPrefixMapping(String prefix, String uri)
+
+
+ /**
+ * <b>SAX-ext Attributes2</b> method (don't invoke on parser);
+ */
+ public boolean isSpecified (int index)
{
- /* ignored */
+ return ((Attribute) attributesList.get(index)).specified;
}
- public void startElement(String namespace,
- String local,
- String name,
- Attributes attrs)
- throws SAXException
+ /**
+ * <b>SAX-ext Attributes2</b> method (don't invoke on parser);
+ */
+ public boolean isSpecified (String uri, String local)
{
- docHandler.startElement(name, (AttributeList) attrs);
+ int index = getIndex (uri, local);
+ return isSpecified(index);
}
- public void characters(char[] buf, int offset, int len)
- throws SAXException
+ /**
+ * <b>SAX-ext Attributes2</b> method (don't invoke on parser);
+ */
+ public boolean isSpecified (String xmlName)
{
- docHandler.characters(buf, offset, len);
+ int index = getIndex (xmlName);
+ return isSpecified(index);
}
- public void ignorableWhitespace(char[] buf, int offset, int len)
- throws SAXException
+
+ //
+ // Implementation of org.xml.sax.Locator.
+ //
+
+ /**
+ * <b>SAX Locator</b> method (don't invoke on parser);
+ */
+ public String getPublicId ()
{
- docHandler.ignorableWhitespace(buf, offset, len);
+ return null; // FIXME track public IDs too
}
- public void skippedEntity(String name)
+ /**
+ * <b>SAX Locator</b> method (don't invoke on parser);
+ */
+ public String getSystemId ()
{
- /* ignored */
+ if (entityStack.empty ())
+ return null;
+ else
+ return (String) entityStack.peek ();
}
- public void endElement(String u, String l, String name)
- throws SAXException
+ /**
+ * <b>SAX Locator</b> method (don't invoke on parser);
+ */
+ public int getLineNumber ()
{
- docHandler.endElement(name);
+ return parser.getLineNumber ();
}
- public void endPrefixMapping(String prefix)
+ /**
+ * <b>SAX Locator</b> method (don't invoke on parser);
+ */
+ public int getColumnNumber ()
{
- /* ignored */
+ return parser.getColumnNumber ();
}
- public void endDocument()
- throws SAXException
+ // adapter between SAX2 content handler and SAX1 document handler callbacks
+ private static class Adapter implements ContentHandler
{
- docHandler.endDocument();
+ private DocumentHandler docHandler;
+
+ Adapter (DocumentHandler dh)
+ { docHandler = dh; }
+
+
+ public void setDocumentLocator (Locator l)
+ { docHandler.setDocumentLocator (l); }
+
+ public void startDocument () throws SAXException
+ { docHandler.startDocument (); }
+
+ public void processingInstruction (String target, String data)
+ throws SAXException
+ { docHandler.processingInstruction (target, data); }
+
+ public void startPrefixMapping (String prefix, String uri)
+ { /* ignored */ }
+
+ public void startElement (
+ String namespace,
+ String local,
+ String name,
+ Attributes attrs
+ ) throws SAXException
+ { docHandler.startElement (name, (AttributeList) attrs); }
+
+ public void characters (char buf [], int offset, int len)
+ throws SAXException
+ { docHandler.characters (buf, offset, len); }
+
+ public void ignorableWhitespace (char buf [], int offset, int len)
+ throws SAXException
+ { docHandler.ignorableWhitespace (buf, offset, len); }
+
+ public void skippedEntity (String name)
+ { /* ignored */ }
+
+ public void endElement (String u, String l, String name)
+ throws SAXException
+ { docHandler.endElement (name); }
+
+ public void endPrefixMapping (String prefix)
+ { /* ignored */ }
+
+ public void endDocument () throws SAXException
+ { docHandler.endDocument (); }
}
- }
+}
+
+class Attribute
+{
- private static class Attribute
- {
-
String name;
String value;
String nameSpace;
String localName;
boolean specified;
-
+
Attribute(String name, String value, boolean specified)
{
- this.name = name;
- this.value = value;
- this.nameSpace = "";
- this.specified = specified;
+ this.name = name;
+ this.value = value;
+ this.nameSpace = "";
+ this.specified = specified;
}
-
- }
-
}
+
package gnu.xml.aelfred2;
-import gnu.java.security.action.GetPropertyAction;
-
import java.io.BufferedInputStream;
import java.io.CharConversionException;
import java.io.EOFException;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLConnection;
-import java.security.AccessController;
-import java.util.Iterator;
-import java.util.HashMap;
-import java.util.LinkedList;
+// maintaining 1.1 compatibility for now ...
+// Iterator and Hashmap ought to be faster
+import java.util.Enumeration;
+import java.util.Hashtable;
+import java.util.Stack;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
*/
final class XmlParser
{
+ // avoid slow per-character readCh()
+ private final static boolean USE_CHEATS = true;
- // avoid slow per-character readCh()
- private final static boolean USE_CHEATS = true;
- ////////////////////////////////////////////////////////////////////////
- // Constants.
- ////////////////////////////////////////////////////////////////////////
-
- //
- // Constants for element content type.
- //
-
- /**
- * Constant: an element has not been declared.
- * @see #getElementContentType
- */
- public final static int CONTENT_UNDECLARED = 0;
-
- /**
- * Constant: the element has a content model of ANY.
- * @see #getElementContentType
- */
- public final static int CONTENT_ANY = 1;
-
- /**
- * Constant: the element has declared content of EMPTY.
- * @see #getElementContentType
- */
- public final static int CONTENT_EMPTY = 2;
-
- /**
- * Constant: the element has mixed content.
- * @see #getElementContentType
- */
- public final static int CONTENT_MIXED = 3;
-
- /**
- * Constant: the element has element content.
- * @see #getElementContentType
- */
- public final static int CONTENT_ELEMENTS = 4;
-
-
- //
- // Constants for the entity type.
- //
-
- /**
- * Constant: the entity has not been declared.
- * @see #getEntityType
- */
- public final static int ENTITY_UNDECLARED = 0;
-
- /**
- * Constant: the entity is internal.
- * @see #getEntityType
- */
- public final static int ENTITY_INTERNAL = 1;
-
- /**
- * Constant: the entity is external, non-parsable data.
- * @see #getEntityType
- */
- public final static int ENTITY_NDATA = 2;
-
- /**
- * Constant: the entity is external XML data.
- * @see #getEntityType
- */
- public final static int ENTITY_TEXT = 3;
-
- //
- // Attribute type constants are interned literal strings.
- //
-
- //
- // Constants for supported encodings. "external" is just a flag.
- //
- private final static int ENCODING_EXTERNAL = 0;
- private final static int ENCODING_UTF_8 = 1;
- private final static int ENCODING_ISO_8859_1 = 2;
- private final static int ENCODING_UCS_2_12 = 3;
- private final static int ENCODING_UCS_2_21 = 4;
- private final static int ENCODING_UCS_4_1234 = 5;
- private final static int ENCODING_UCS_4_4321 = 6;
- private final static int ENCODING_UCS_4_2143 = 7;
- private final static int ENCODING_UCS_4_3412 = 8;
- private final static int ENCODING_ASCII = 9;
-
- //
- // Constants for attribute default value.
- //
-
- /**
- * Constant: the attribute is not declared.
- * @see #getAttributeDefaultValueType
- */
- public final static int ATTRIBUTE_DEFAULT_UNDECLARED = 30;
-
- /**
- * Constant: the attribute has a literal default value specified.
- * @see #getAttributeDefaultValueType
- * @see #getAttributeDefaultValue
- */
- public final static int ATTRIBUTE_DEFAULT_SPECIFIED = 31;
-
- /**
- * Constant: the attribute was declared #IMPLIED.
- * @see #getAttributeDefaultValueType
- */
- public final static int ATTRIBUTE_DEFAULT_IMPLIED = 32;
-
- /**
- * Constant: the attribute was declared #REQUIRED.
- * @see #getAttributeDefaultValueType
- */
- public final static int ATTRIBUTE_DEFAULT_REQUIRED = 33;
-
- /**
- * Constant: the attribute was declared #FIXED.
- * @see #getAttributeDefaultValueType
- * @see #getAttributeDefaultValue
- */
- public final static int ATTRIBUTE_DEFAULT_FIXED = 34;
-
- //
- // Constants for input.
- //
- private final static int INPUT_NONE = 0;
- private final static int INPUT_INTERNAL = 1;
- private final static int INPUT_STREAM = 3;
- private final static int INPUT_READER = 5;
-
- //
- // Flags for reading literals.
- //
- // expand general entity refs (attribute values in dtd and content)
- private final static int LIT_ENTITY_REF = 2;
- // normalize this value (space chars) (attributes, public ids)
- private final static int LIT_NORMALIZE = 4;
- // literal is an attribute value
- private final static int LIT_ATTRIBUTE = 8;
- // don't expand parameter entities
- private final static int LIT_DISABLE_PE = 16;
- // don't expand [or parse] character refs
- private final static int LIT_DISABLE_CREF = 32;
- // don't parse general entity refs
- private final static int LIT_DISABLE_EREF = 64;
- // literal is a public ID value
- private final static int LIT_PUBID = 256;
-
- //
- // Flags affecting PE handling in DTDs (if expandPE is true).
- // PEs expand with space padding, except inside literals.
- //
- private final static int CONTEXT_NORMAL = 0;
- private final static int CONTEXT_LITERAL = 1;
-
- // Emit warnings for relative URIs with no base URI.
- static boolean uriWarnings;
- static
- {
- String key = "gnu.xml.aelfred2.XmlParser.uriWarnings";
- GetPropertyAction a = new GetPropertyAction(key);
- uriWarnings = "true".equals(AccessController.doPrivileged(a));
- }
-
- //
- // The current XML handler interface.
- //
- private SAXDriver handler;
-
- //
- // I/O information.
- //
- private Reader reader; // current reader
- private InputStream is; // current input stream
- private int line; // current line number
- private int column; // current column number
- private int sourceType; // type of input source
- private LinkedList inputStack; // stack of input soruces
- private URLConnection externalEntity; // current external entity
- private int encoding; // current character encoding
- private int currentByteCount; // bytes read from current source
- private InputSource scratch; // temporary
-
- //
- // Buffers for decoded but unparsed character input.
- //
- private char[] readBuffer;
- private int readBufferPos;
- private int readBufferLength;
- private int readBufferOverflow; // overflow from last data chunk.
-
- //
- // Buffer for undecoded raw byte input.
- //
- private final static int READ_BUFFER_MAX = 16384;
- private byte[] rawReadBuffer;
-
-
- //
- // Buffer for attribute values, char refs, DTD stuff.
- //
- private static int DATA_BUFFER_INITIAL = 4096;
- private char[] dataBuffer;
- private int dataBufferPos;
-
- //
- // Buffer for parsed names.
- //
- private static int NAME_BUFFER_INITIAL = 1024;
- private char[] nameBuffer;
- private int nameBufferPos;
-
- //
- // Save any standalone flag
- //
- private boolean docIsStandalone;
-
- //
- // Hashtables for DTD information on elements, entities, and notations.
- // Populated until we start ignoring decls (because of skipping a PE)
- //
- private HashMap elementInfo;
- private HashMap entityInfo;
- private HashMap notationInfo;
- private boolean skippedPE;
-
- //
- // Element type currently in force.
- //
- private String currentElement;
- private int currentElementContent;
-
- //
- // Stack of entity names, to detect recursion.
- //
- private LinkedList entityStack;
-
- //
- // PE expansion is enabled in most chunks of the DTD, not all.
- // When it's enabled, literals are treated differently.
- //
- private boolean inLiteral;
- private boolean expandPE;
- private boolean peIsError;
-
- //
- // can't report entity expansion inside two constructs:
- // - attribute expansions (internal entities only)
- // - markup declarations (parameter entities only)
- //
- private boolean doReport;
-
- //
- // Symbol table, for caching interned names.
- //
- // These show up wherever XML names or nmtokens are used: naming elements,
- // attributes, PIs, notations, entities, and enumerated attribute values.
- //
- // NOTE: This hashtable doesn't grow. The default size is intended to be
- // rather large for most documents. Example: one snapshot of the DocBook
- // XML 4.1 DTD used only about 350 such names. As a rule, only pathological
- // documents (ones that don't reuse names) should ever see much collision.
- //
- // Be sure that SYMBOL_TABLE_LENGTH always stays prime, for best hashing.
- // "2039" keeps the hash table size at about two memory pages on typical
- // 32 bit hardware.
- //
- private final static int SYMBOL_TABLE_LENGTH = 2039;
-
- private Object[][] symbolTable;
-
- //
- // Hash table of attributes found in current start tag.
- //
- private String[] tagAttributes;
- private int tagAttributePos;
-
- //
- // Utility flag: have we noticed a CR while reading the last
- // data chunk? If so, we will have to go back and normalise
- // CR or CR/LF line ends.
- //
- private boolean sawCR;
-
- //
- // Utility flag: are we in CDATA? If so, whitespace isn't ignorable.
- //
- private boolean inCDATA;
-
- //
- // Xml version.
- //
- private static final int XML_10 = 0;
- private static final int XML_11 = 1;
- private int xmlVersion = XML_10;
-
- //////////////////////////////////////////////////////////////////////
- // Constructors.
- ////////////////////////////////////////////////////////////////////////
-
- /**
- * Construct a new parser with no associated handler.
- * @see #setHandler
- * @see #parse
- */
- // package private
- XmlParser()
- {
- }
+ //////////////////////////////////////////////////////////////////////
+ // Constructors.
+ ////////////////////////////////////////////////////////////////////////
- /**
- * Set the handler that will receive parsing events.
- * @param handler The handler to receive callback events.
- * @see #parse
- */
- // package private
- void setHandler(SAXDriver handler)
- {
- this.handler = handler;
- }
- /**
- * Parse an XML document from the character stream, byte stream, or URI
- * that you provide (in that order of preference). Any URI that you
- * supply will become the base URI for resolving relative URI, and may
- * be used to acquire a reader or byte stream.
- *
- * <p> Only one thread at a time may use this parser; since it is
- * private to this package, post-parse cleanup is done by the caller,
- * which MUST NOT REUSE the parser (just null it).
- *
- * @param systemId Absolute URI of the document; should never be null,
- * but may be so iff a reader <em>or</em> a stream is provided.
- * @param publicId The public identifier of the document, or null.
- * @param reader A character stream; must be null if stream isn't.
- * @param stream A byte input stream; must be null if reader isn't.
- * @param encoding The suggested encoding, or null if unknown.
- * @exception java.lang.Exception Basically SAXException or IOException
- */
- // package private
- void doParse(String systemId, String publicId, Reader reader,
- InputStream stream, String encoding)
- throws Exception
- {
- if (handler == null)
- {
- throw new IllegalStateException("no callback handler");
- }
+ /**
+ * Construct a new parser with no associated handler.
+ * @see #setHandler
+ * @see #parse
+ */
+ // package private
+ XmlParser ()
+ {
+ }
- initializeVariables();
-
- // predeclare the built-in entities here (replacement texts)
- // we don't need to intern(), since we're guaranteed literals
- // are always (globally) interned.
- setInternalEntity("amp", "&");
- setInternalEntity("lt", "<");
- setInternalEntity("gt", ">");
- setInternalEntity("apos", "'");
- setInternalEntity("quot", """);
-
- try
- {
- // pushURL first to ensure locator is correct in startDocument
- // ... it might report an IO or encoding exception.
- handler.startDocument();
- pushURL(false, "[document]",
- // default baseURI: null
- new ExternalIdentifiers(publicId, systemId, null),
- reader, stream, encoding, false);
-
- parseDocument();
- }
- catch (EOFException e)
- {
- //empty input
- error("empty document, with no root element.");
- }
- finally
- {
- if (reader != null)
- {
- try
- {
- reader.close();
- }
- catch (IOException e)
- {
- /* ignore */
- }
- }
- if (stream != null)
- {
- try
- {
- stream.close();
- }
- catch (IOException e)
- {
- /* ignore */
- }
- }
- if (is != null)
- {
- try
- {
- is.close();
- }
- catch (IOException e)
- {
- /* ignore */
- }
- }
- scratch = null;
- }
- }
- //////////////////////////////////////////////////////////////////////
- // Error reporting.
- //////////////////////////////////////////////////////////////////////
-
- /**
- * Report an error.
- * @param message The error message.
- * @param textFound The text that caused the error (or null).
- * @see SAXDriver#error
- * @see #line
- */
- private void error(String message, String textFound, String textExpected)
- throws SAXException
- {
- if (textFound != null)
- {
- message = message + " (found \"" + textFound + "\")";
- }
- if (textExpected != null)
- {
- message = message + " (expected \"" + textExpected + "\")";
- }
- handler.fatal(message);
-
- // "can't happen"
- throw new SAXException(message);
- }
+ /**
+ * Set the handler that will receive parsing events.
+ * @param handler The handler to receive callback events.
+ * @see #parse
+ */
+ // package private
+ void setHandler (SAXDriver handler)
+ {
+ this.handler = handler;
+ }
- /**
- * Report a serious error.
- * @param message The error message.
- * @param textFound The text that caused the error (or null).
- */
- private void error(String message, char textFound, String textExpected)
- throws SAXException
- {
- error(message, new Character(textFound).toString(), textExpected);
- }
- /**
- * Report typical case fatal errors.
- */
- private void error(String message)
- throws SAXException
- {
- handler.fatal(message);
- }
+ /**
+ * Parse an XML document from the character stream, byte stream, or URI
+ * that you provide (in that order of preference). Any URI that you
+ * supply will become the base URI for resolving relative URI, and may
+ * be used to acquire a reader or byte stream.
+ *
+ * <p> Only one thread at a time may use this parser; since it is
+ * private to this package, post-parse cleanup is done by the caller,
+ * which MUST NOT REUSE the parser (just null it).
+ *
+ * @param systemId Absolute URI of the document; should never be null,
+ * but may be so iff a reader <em>or</em> a stream is provided.
+ * @param publicId The public identifier of the document, or null.
+ * @param reader A character stream; must be null if stream isn't.
+ * @param stream A byte input stream; must be null if reader isn't.
+ * @param encoding The suggested encoding, or null if unknown.
+ * @exception java.lang.Exception Basically SAXException or IOException
+ */
+ // package private
+ void doParse (
+ String systemId,
+ String publicId,
+ Reader reader,
+ InputStream stream,
+ String encoding
+ ) throws Exception
+ {
+ if (handler == null)
+ throw new IllegalStateException ("no callback handler");
+
+ initializeVariables ();
+
+ // predeclare the built-in entities here (replacement texts)
+ // we don't need to intern(), since we're guaranteed literals
+ // are always (globally) interned.
+ setInternalEntity ("amp", "&");
+ setInternalEntity ("lt", "<");
+ setInternalEntity ("gt", ">");
+ setInternalEntity ("apos", "'");
+ setInternalEntity ("quot", """);
+
+ try {
+ // pushURL first to ensure locator is correct in startDocument
+ // ... it might report an IO or encoding exception.
+ handler.startDocument ();
+ pushURL (false, "[document]",
+ // default baseURI: null
+ new String [] { publicId, systemId, null},
+ reader, stream, encoding, false);
+
+ parseDocument ();
+ } catch (EOFException e){
+ //empty input
+ error("empty document, with no root element.");
+ }finally {
+ if (reader != null)
+ try { reader.close ();
+ } catch (IOException e) { /* ignore */ }
+ if (stream != null)
+ try { stream.close ();
+ } catch (IOException e) { /* ignore */ }
+ if (is != null)
+ try { is.close ();
+ } catch (IOException e) { /* ignore */ }
+ if (reader != null)
+ try {
+ reader.close ();
+ } catch (IOException e) { /* ignore */
+ }
+ scratch = null;
+ }
+ }
- //////////////////////////////////////////////////////////////////////
- // Major syntactic productions.
- //////////////////////////////////////////////////////////////////////
- /**
- * Parse an XML document.
- * <pre>
- * [1] document ::= prolog element Misc*
- * </pre>
- * <p>This is the top-level parsing function for a single XML
- * document. As a minimum, a well-formed document must have
- * a document element, and a valid document must have a prolog
- * (one with doctype) as well.
- */
- private void parseDocument()
- throws Exception
- {
- try
- { // added by MHK
- boolean sawDTD = parseProlog();
- require('<');
- parseElement(!sawDTD);
- }
- catch (EOFException ee)
- { // added by MHK
- error("premature end of file", "[EOF]", null);
- }
-
- try
- {
- parseMisc(); //skip all white, PIs, and comments
- char c = readCh(); //if this doesn't throw an exception...
- error("unexpected characters after document end", c, null);
- }
- catch (EOFException e)
- {
- return;
- }
- }
-
- static final char[] startDelimComment = { '<', '!', '-', '-' };
- static final char[] endDelimComment = { '-', '-' };
+ ////////////////////////////////////////////////////////////////////////
+ // Constants.
+ ////////////////////////////////////////////////////////////////////////
- /**
- * Skip a comment.
- * <pre>
- * [15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* "-->"
- * </pre>
- * <p> (The <code><!--</code> has already been read.)
- */
- private void parseComment()
- throws Exception
- {
- char c;
- boolean saved = expandPE;
-
- expandPE = false;
- parseUntil(endDelimComment);
- require('>');
- expandPE = saved;
- handler.comment(dataBuffer, 0, dataBufferPos);
- dataBufferPos = 0;
- }
-
- static final char[] startDelimPI = { '<', '?' };
- static final char[] endDelimPI = { '?', '>' };
+ //
+ // Constants for element content type.
+ //
- /**
- * Parse a processing instruction and do a call-back.
- * <pre>
- * [16] PI ::= '<?' PITarget
- * (S (Char* - (Char* '?>' Char*)))?
- * '?>'
- * [17] PITarget ::= Name - ( ('X'|'x') ('M'|m') ('L'|l') )
- * </pre>
- * <p> (The <code><?</code> has already been read.)
- */
- private void parsePI()
- throws SAXException, IOException
- {
- String name;
- boolean saved = expandPE;
-
- expandPE = false;
- name = readNmtoken(true);
- //NE08
- if (name.indexOf(':') >= 0)
- {
- error("Illegal character(':') in processing instruction name ",
- name, null);
- }
- if ("xml".equalsIgnoreCase(name))
- {
- error("Illegal processing instruction target", name, null);
- }
- if (!tryRead(endDelimPI))
- {
- requireWhitespace();
- parseUntil(endDelimPI);
- }
- expandPE = saved;
- handler.processingInstruction(name, dataBufferToString());
- }
-
- static final char[] endDelimCDATA = { ']', ']', '>' };
+ /**
+ * Constant: an element has not been declared.
+ * @see #getElementContentType
+ */
+ public final static int CONTENT_UNDECLARED = 0;
- private boolean isDirtyCurrentElement;
+ /**
+ * Constant: the element has a content model of ANY.
+ * @see #getElementContentType
+ */
+ public final static int CONTENT_ANY = 1;
- /**
- * Parse a CDATA section.
- * <pre>
- * [18] CDSect ::= CDStart CData CDEnd
- * [19] CDStart ::= '<![CDATA['
- * [20] CData ::= (Char* - (Char* ']]>' Char*))
- * [21] CDEnd ::= ']]>'
- * </pre>
- * <p> (The '<![CDATA[' has already been read.)
- */
- private void parseCDSect()
- throws Exception
- {
- parseUntil(endDelimCDATA);
- dataBufferFlush();
- }
+ /**
+ * Constant: the element has declared content of EMPTY.
+ * @see #getElementContentType
+ */
+ public final static int CONTENT_EMPTY = 2;
- /**
- * Parse the prolog of an XML document.
- * <pre>
- * [22] prolog ::= XMLDecl? Misc* (Doctypedecl Misc*)?
- * </pre>
- * <p>We do not look for the XML declaration here, because it was
- * handled by pushURL ().
- * @see pushURL
- * @return true if a DTD was read.
- */
- private boolean parseProlog()
- throws Exception
- {
- parseMisc();
+ /**
+ * Constant: the element has mixed content.
+ * @see #getElementContentType
+ */
+ public final static int CONTENT_MIXED = 3;
- if (tryRead("<!DOCTYPE"))
- {
- parseDoctypedecl();
- parseMisc();
- return true;
- }
- return false;
- }
+ /**
+ * Constant: the element has element content.
+ * @see #getElementContentType
+ */
+ public final static int CONTENT_ELEMENTS = 4;
- private void checkLegalVersion(String version)
- throws SAXException
- {
- int len = version.length();
- for (int i = 0; i < len; i++)
- {
- char c = version.charAt(i);
- if ('0' <= c && c <= '9')
- {
- continue;
- }
- if (c == '_' || c == '.' || c == ':' || c == '-')
- {
- continue;
- }
- if ('a' <= c && c <= 'z')
- {
- continue;
- }
- if ('A' <= c && c <= 'Z')
- {
- continue;
- }
- error ("illegal character in version", version, "1.0");
- }
- }
- /**
- * Parse the XML declaration.
- * <pre>
- * [23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>'
- * [24] VersionInfo ::= S 'version' Eq
- * ("'" VersionNum "'" | '"' VersionNum '"' )
- * [26] VersionNum ::= ([a-zA-Z0-9_.:] | '-')*
- * [32] SDDecl ::= S 'standalone' Eq
- * ( "'"" ('yes' | 'no') "'"" | '"' ("yes" | "no") '"' )
- * [80] EncodingDecl ::= S 'encoding' Eq
- * ( "'" EncName "'" | "'" EncName "'" )
- * [81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')*
- * </pre>
- * <p> (The <code><?xml</code> and whitespace have already been read.)
- * @return the encoding in the declaration, uppercased; or null
- * @see #parseTextDecl
- * @see #setupDecoding
- */
- private String parseXMLDecl(boolean ignoreEncoding)
- throws SAXException, IOException
- {
- String version;
- String encodingName = null;
- String standalone = null;
- int flags = LIT_DISABLE_CREF | LIT_DISABLE_PE | LIT_DISABLE_EREF;
- String inputEncoding = null;
-
- switch (this.encoding)
- {
- case ENCODING_EXTERNAL:
- case ENCODING_UTF_8:
- inputEncoding = "UTF-8";
- break;
- case ENCODING_ISO_8859_1:
- inputEncoding = "ISO-8859-1";
- break;
- case ENCODING_UCS_2_12:
- inputEncoding = "UTF-16BE";
- break;
- case ENCODING_UCS_2_21:
- inputEncoding = "UTF-16LE";
- break;
- }
-
- // Read the version.
- require("version");
- parseEq();
- checkLegalVersion(version = readLiteral(flags));
- if (!version.equals("1.0"))
- {
- if (version.equals("1.1"))
- {
- handler.warn("expected XML version 1.0, not: " + version);
- xmlVersion = XML_11;
- }
- else
- {
- error("illegal XML version", version, "1.0 or 1.1");
- }
- }
- else
- {
- xmlVersion = XML_10;
- }
- // Try reading an encoding declaration.
- boolean white = tryWhitespace();
-
- if (tryRead("encoding"))
- {
- if (!white)
- {
- error("whitespace required before 'encoding='");
- }
- parseEq();
- encodingName = readLiteral(flags);
- if (!ignoreEncoding)
- {
- setupDecoding(encodingName);
- }
- }
-
- // Try reading a standalone declaration
- if (encodingName != null)
- {
- white = tryWhitespace();
- }
- if (tryRead("standalone"))
- {
- if (!white)
- {
- error("whitespace required before 'standalone='");
- }
- parseEq();
- standalone = readLiteral(flags);
- if ("yes".equals(standalone))
- {
- docIsStandalone = true;
- }
- else if (!"no".equals(standalone))
- {
- error("standalone flag must be 'yes' or 'no'");
- }
- }
+ //
+ // Constants for the entity type.
+ //
- skipWhitespace();
- require("?>");
+ /**
+ * Constant: the entity has not been declared.
+ * @see #getEntityType
+ */
+ public final static int ENTITY_UNDECLARED = 0;
- if (inputEncoding == null)
- {
- inputEncoding = encodingName;
- }
- handler.xmlDecl(version, encodingName, docIsStandalone,
- inputEncoding);
-
- return encodingName;
- }
+ /**
+ * Constant: the entity is internal.
+ * @see #getEntityType
+ */
+ public final static int ENTITY_INTERNAL = 1;
- /**
- * Parse a text declaration.
- * <pre>
- * [79] TextDecl ::= '<?xml' VersionInfo? EncodingDecl S? '?>'
- * [80] EncodingDecl ::= S 'encoding' Eq
- * ( '"' EncName '"' | "'" EncName "'" )
- * [81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')*
- * </pre>
- * <p> (The <code><?xml</code>' and whitespace have already been read.)
- * @return the encoding in the declaration, uppercased; or null
- * @see #parseXMLDecl
- * @see #setupDecoding
- */
- private String parseTextDecl(boolean ignoreEncoding)
- throws SAXException, IOException
- {
- String encodingName = null;
- int flags = LIT_DISABLE_CREF | LIT_DISABLE_PE | LIT_DISABLE_EREF;
-
- // Read an optional version.
- if (tryRead ("version"))
- {
- String version;
- parseEq();
- checkLegalVersion(version = readLiteral(flags));
-
- if (version.equals("1.1"))
- {
- if (xmlVersion == XML_10)
- {
- error("external subset has later version number.", "1.0",
- version);
- }
- handler.warn("expected XML version 1.0, not: " + version);
- xmlVersion = XML_11;
- }
- else if (!version.equals("1.0"))
- {
- error("illegal XML version", version, "1.0 or 1.1");
- }
- requireWhitespace();
- }
-
- // Read the encoding.
- require("encoding");
- parseEq();
- encodingName = readLiteral(flags);
- if (!ignoreEncoding)
- {
- setupDecoding(encodingName);
- }
- skipWhitespace();
- require("?>");
-
- return encodingName;
- }
+ /**
+ * Constant: the entity is external, non-parsable data.
+ * @see #getEntityType
+ */
+ public final static int ENTITY_NDATA = 2;
- /**
- * Sets up internal state so that we can decode an entity using the
- * specified encoding. This is used when we start to read an entity
- * and we have been given knowledge of its encoding before we start to
- * read any data (e.g. from a SAX input source or from a MIME type).
- *
- * <p> It is also used after autodetection, at which point only very
- * limited adjustments to the encoding may be used (switching between
- * related builtin decoders).
- *
- * @param encodingName The name of the encoding specified by the user.
- * @exception IOException if the encoding isn't supported either
- * internally to this parser, or by the hosting JVM.
- * @see #parseXMLDecl
- * @see #parseTextDecl
+ /**
+ * Constant: the entity is external XML data.
+ * @see #getEntityType
*/
- private void setupDecoding(String encodingName)
- throws SAXException, IOException
- {
- encodingName = encodingName.toUpperCase();
-
- // ENCODING_EXTERNAL indicates an encoding that wasn't
- // autodetected ... we can use builtin decoders, or
- // ones from the JVM (InputStreamReader).
-
- // Otherwise we can only tweak what was autodetected, and
- // only for single byte (ASCII derived) builtin encodings.
-
- // ASCII-derived encodings
- if (encoding == ENCODING_UTF_8 || encoding == ENCODING_EXTERNAL)
- {
- if (encodingName.equals("ISO-8859-1")
- || encodingName.equals("8859_1")
- || encodingName.equals("ISO8859_1"))
- {
- encoding = ENCODING_ISO_8859_1;
- return;
- }
- else if (encodingName.equals("US-ASCII")
- || encodingName.equals("ASCII"))
- {
- encoding = ENCODING_ASCII;
- return;
- }
- else if (encodingName.equals("UTF-8")
- || encodingName.equals("UTF8"))
- {
- encoding = ENCODING_UTF_8;
- return;
- }
- else if (encoding != ENCODING_EXTERNAL)
- {
- // used to start with a new reader ...
- throw new UnsupportedEncodingException(encodingName);
- }
- // else fallthrough ...
- // it's ASCII-ish and something other than a builtin
- }
-
- // Unicode and such
- if (encoding == ENCODING_UCS_2_12 || encoding == ENCODING_UCS_2_21)
- {
- if (!(encodingName.equals("ISO-10646-UCS-2")
- || encodingName.equals("UTF-16")
- || encodingName.equals("UTF-16BE")
- || encodingName.equals("UTF-16LE")))
- {
- error("unsupported Unicode encoding", encodingName, "UTF-16");
- }
- return;
- }
-
- // four byte encodings
- if (encoding == ENCODING_UCS_4_1234
- || encoding == ENCODING_UCS_4_4321
- || encoding == ENCODING_UCS_4_2143
- || encoding == ENCODING_UCS_4_3412)
- {
- // Strictly: "UCS-4" == "UTF-32BE"; also, "UTF-32LE" exists
- if (!encodingName.equals("ISO-10646-UCS-4"))
- {
- error("unsupported 32-bit encoding", encodingName,
- "ISO-10646-UCS-4");
- }
- return;
- }
-
- // assert encoding == ENCODING_EXTERNAL
- // if (encoding != ENCODING_EXTERNAL)
- // throw new RuntimeException ("encoding = " + encoding);
-
- if (encodingName.equals("UTF-16BE"))
- {
- encoding = ENCODING_UCS_2_12;
- return;
- }
- if (encodingName.equals("UTF-16LE"))
- {
- encoding = ENCODING_UCS_2_21;
- return;
- }
-
- // We couldn't use the builtin decoders at all. But we can try to
- // create a reader, since we haven't messed up buffering. Tweak
- // the encoding name if necessary.
-
- if (encodingName.equals("UTF-16")
- || encodingName.equals("ISO-10646-UCS-2"))
- {
- encodingName = "Unicode";
- }
- // Ignoring all the EBCDIC aliases here
-
- reader = new InputStreamReader(is, encodingName);
- sourceType = INPUT_READER;
- }
-
- /**
- * Parse miscellaneous markup outside the document element and DOCTYPE
- * declaration.
- * <pre>
- * [27] Misc ::= Comment | PI | S
- * </pre>
- */
- private void parseMisc()
- throws Exception
- {
- while (true)
- {
- skipWhitespace();
- if (tryRead(startDelimPI))
- {
- parsePI();
- }
- else if (tryRead(startDelimComment))
- {
- parseComment();
- }
- else
- {
- return;
- }
- }
- }
+ public final static int ENTITY_TEXT = 3;
- /**
- * Parse a document type declaration.
- * <pre>
- * [28] doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S?
- * ('[' (markupdecl | PEReference | S)* ']' S?)? '>'
- * </pre>
- * <p> (The <code><!DOCTYPE</code> has already been read.)
- */
- private void parseDoctypedecl()
- throws Exception
- {
- String rootName;
- ExternalIdentifiers ids;
- // Read the document type name.
- requireWhitespace();
- rootName = readNmtoken(true);
+ //
+ // Attribute type constants are interned literal strings.
+ //
- // Read the External subset's IDs
- skipWhitespace();
- ids = readExternalIds(false, true);
+ //
+ // Constants for supported encodings. "external" is just a flag.
+ //
+ private final static int ENCODING_EXTERNAL = 0;
+ private final static int ENCODING_UTF_8 = 1;
+ private final static int ENCODING_ISO_8859_1 = 2;
+ private final static int ENCODING_UCS_2_12 = 3;
+ private final static int ENCODING_UCS_2_21 = 4;
+ private final static int ENCODING_UCS_4_1234 = 5;
+ private final static int ENCODING_UCS_4_4321 = 6;
+ private final static int ENCODING_UCS_4_2143 = 7;
+ private final static int ENCODING_UCS_4_3412 = 8;
+ private final static int ENCODING_ASCII = 9;
- // report (a) declaration of name, (b) lexical info (ids)
- handler.doctypeDecl(rootName, ids.publicId, ids.systemId);
-
- // Internal subset is parsed first, if present
- skipWhitespace();
- if (tryRead('['))
- {
-
- // loop until the subset ends
- while (true)
- {
- doReport = expandPE = true;
- skipWhitespace();
- doReport = expandPE = false;
- if (tryRead(']'))
- {
- break; // end of subset
- }
- else
- {
- // WFC, PEs in internal subset (only between decls)
- peIsError = expandPE = true;
- parseMarkupdecl();
- peIsError = expandPE = false;
- }
- }
- }
- skipWhitespace();
- require('>');
-
- // Read the external subset, if any
- InputSource subset;
-
- if (ids.systemId == null)
- {
- subset = handler.getExternalSubset(rootName,
- handler.getSystemId());
- }
- else
- {
- subset = null;
- }
- if (ids.systemId != null || subset != null)
- {
- pushString(null, ">");
-
- // NOTE: [dtd] is so we say what SAX2 expects,
- // though it's misleading (subset, not entire dtd)
- if (ids.systemId != null)
- {
- pushURL(true, "[dtd]", ids, null, null, null, true);
- }
- else
- {
- handler.warn("modifying document by adding external subset");
- pushURL(true, "[dtd]",
- new ExternalIdentifiers(subset.getPublicId(),
- subset.getSystemId(),
- null),
- subset.getCharacterStream(),
- subset.getByteStream(),
- subset.getEncoding(),
- false);
- }
-
- // Loop until we end up back at '>'
- while (true)
- {
- doReport = expandPE = true;
- skipWhitespace();
- doReport = expandPE = false;
- if (tryRead('>'))
- {
- break;
- }
- else
- {
- expandPE = true;
- parseMarkupdecl();
- expandPE = false;
- }
- }
+
+ //
+ // Constants for attribute default value.
+ //
+
+ /**
+ * Constant: the attribute is not declared.
+ * @see #getAttributeDefaultValueType
+ */
+ public final static int ATTRIBUTE_DEFAULT_UNDECLARED = 30;
+
+ /**
+ * Constant: the attribute has a literal default value specified.
+ * @see #getAttributeDefaultValueType
+ * @see #getAttributeDefaultValue
+ */
+ public final static int ATTRIBUTE_DEFAULT_SPECIFIED = 31;
+
+ /**
+ * Constant: the attribute was declared #IMPLIED.
+ * @see #getAttributeDefaultValueType
+ */
+ public final static int ATTRIBUTE_DEFAULT_IMPLIED = 32;
+
+ /**
+ * Constant: the attribute was declared #REQUIRED.
+ * @see #getAttributeDefaultValueType
+ */
+ public final static int ATTRIBUTE_DEFAULT_REQUIRED = 33;
+
+ /**
+ * Constant: the attribute was declared #FIXED.
+ * @see #getAttributeDefaultValueType
+ * @see #getAttributeDefaultValue
+ */
+ public final static int ATTRIBUTE_DEFAULT_FIXED = 34;
+
+
+ //
+ // Constants for input.
+ //
+ private final static int INPUT_NONE = 0;
+ private final static int INPUT_INTERNAL = 1;
+ private final static int INPUT_STREAM = 3;
+ private final static int INPUT_READER = 5;
+
+
+ //
+ // Flags for reading literals.
+ //
+ // expand general entity refs (attribute values in dtd and content)
+ private final static int LIT_ENTITY_REF = 2;
+ // normalize this value (space chars) (attributes, public ids)
+ private final static int LIT_NORMALIZE = 4;
+ // literal is an attribute value
+ private final static int LIT_ATTRIBUTE = 8;
+ // don't expand parameter entities
+ private final static int LIT_DISABLE_PE = 16;
+ // don't expand [or parse] character refs
+ private final static int LIT_DISABLE_CREF = 32;
+ // don't parse general entity refs
+ private final static int LIT_DISABLE_EREF = 64;
+ // literal is a public ID value
+ private final static int LIT_PUBID = 256;
+
+
+ //
+ // Flags affecting PE handling in DTDs (if expandPE is true).
+ // PEs expand with space padding, except inside literals.
+ //
+ private final static int CONTEXT_NORMAL = 0;
+ private final static int CONTEXT_LITERAL = 1;
+
+
+ //////////////////////////////////////////////////////////////////////
+ // Error reporting.
+ //////////////////////////////////////////////////////////////////////
+
+
+ /**
+ * Report an error.
+ * @param message The error message.
+ * @param textFound The text that caused the error (or null).
+ * @see SAXDriver#error
+ * @see #line
+ */
+ private void error (String message, String textFound, String textExpected)
+ throws SAXException
+ {
+ if (textFound != null) {
+ message = message + " (found \"" + textFound + "\")";
+ }
+ if (textExpected != null) {
+ message = message + " (expected \"" + textExpected + "\")";
+ }
+ handler.fatal (message);
+
+ // "can't happen"
+ throw new SAXException (message);
+ }
+
+
+ /**
+ * Report a serious error.
+ * @param message The error message.
+ * @param textFound The text that caused the error (or null).
+ */
+ private void error (String message, char textFound, String textExpected)
+ throws SAXException
+ {
+ error (message, new Character (textFound).toString (), textExpected);
+ }
+
+ /** Report typical case fatal errors. */
+ private void error (String message)
+ throws SAXException
+ {
+ handler.fatal (message);
+ }
+
+
+ //////////////////////////////////////////////////////////////////////
+ // Major syntactic productions.
+ //////////////////////////////////////////////////////////////////////
+
+
+ /**
+ * Parse an XML document.
+ * <pre>
+ * [1] document ::= prolog element Misc*
+ * </pre>
+ * <p>This is the top-level parsing function for a single XML
+ * document. As a minimum, a well-formed document must have
+ * a document element, and a valid document must have a prolog
+ * (one with doctype) as well.
+ */
+ private void parseDocument ()
+ throws Exception
+ {
+ try { // added by MHK
+ boolean sawDTD = parseProlog ();
+ require ('<');
+ parseElement (!sawDTD);
+ } catch (EOFException ee) { // added by MHK
+ error("premature end of file", "[EOF]", null);
+ }
- // the ">" string isn't popped yet
- if (inputStack.size() != 1)
- {
- error("external subset has unmatched '>'");
- }
- }
-
- // done dtd
- handler.endDoctype();
- expandPE = false;
- doReport = true;
- }
-
- /**
- * Parse a markup declaration in the internal or external DTD subset.
- * <pre>
- * [29] markupdecl ::= elementdecl | Attlistdecl | EntityDecl
- * | NotationDecl | PI | Comment
- * [30] extSubsetDecl ::= (markupdecl | conditionalSect
- * | PEReference | S) *
- * </pre>
- * <p> Reading toplevel PE references is handled as a lexical issue
- * by the caller, as is whitespace.
- */
- private void parseMarkupdecl()
+ try {
+ parseMisc (); //skip all white, PIs, and comments
+ char c = readCh (); //if this doesn't throw an exception...
+ error ("unexpected characters after document end", c, null);
+ } catch (EOFException e) {
+ return;
+ }
+ }
+
+ static final char startDelimComment [] = { '<', '!', '-', '-' };
+ static final char endDelimComment [] = { '-', '-' };
+
+ /**
+ * Skip a comment.
+ * <pre>
+ * [15] Comment ::= '<!--' ((Char - '-') | ('-' (Char - '-')))* "-->"
+ * </pre>
+ * <p> (The <code><!--</code> has already been read.)
+ */
+ private void parseComment ()
throws Exception
- {
- char[] saved = null;
- boolean savedPE = expandPE;
+ {
+ char c;
+ boolean saved = expandPE;
+
+ expandPE = false;
+ parseUntil (endDelimComment);
+ require ('>');
+ expandPE = saved;
+ handler.comment (dataBuffer, 0, dataBufferPos);
+ dataBufferPos = 0;
+ }
- // prevent "<%foo;" and ensures saved entity is right
- require('<');
- unread('<');
- expandPE = false;
-
- if (tryRead("<!ELEMENT"))
- {
- saved = readBuffer;
- expandPE = savedPE;
- parseElementDecl();
- }
- else if (tryRead("<!ATTLIST"))
- {
- saved = readBuffer;
- expandPE = savedPE;
- parseAttlistDecl();
- }
- else if (tryRead("<!ENTITY"))
- {
- saved = readBuffer;
- expandPE = savedPE;
- parseEntityDecl();
- }
- else if (tryRead("<!NOTATION"))
- {
- saved = readBuffer;
- expandPE = savedPE;
- parseNotationDecl();
- }
- else if (tryRead(startDelimPI))
- {
- saved = readBuffer;
- expandPE = savedPE;
- parsePI();
- }
- else if (tryRead(startDelimComment))
- {
- saved = readBuffer;
- expandPE = savedPE;
- parseComment();
- }
- else if (tryRead("<!["))
- {
- saved = readBuffer;
- expandPE = savedPE;
- if (inputStack.size() > 0)
- {
- parseConditionalSect(saved);
- }
- else
- {
- error("conditional sections illegal in internal subset");
- }
- }
- else
- {
- error("expected markup declaration");
- }
+ static final char startDelimPI [] = { '<', '?' };
+ static final char endDelimPI [] = { '?', '>' };
+
+ /**
+ * Parse a processing instruction and do a call-back.
+ * <pre>
+ * [16] PI ::= '<?' PITarget
+ * (S (Char* - (Char* '?>' Char*)))?
+ * '?>'
+ * [17] PITarget ::= Name - ( ('X'|'x') ('M'|m') ('L'|l') )
+ * </pre>
+ * <p> (The <code><?</code> has already been read.)
+ */
+ private void parsePI ()
+ throws SAXException, IOException
+ {
+ String name;
+ boolean saved = expandPE;
+
+ expandPE = false;
+ name = readNmtoken (true);
+ //NE08
+ if (name.indexOf(':') >= 0)
+ error ("Illegal character(':') in processing instruction name ", name, null);
+ if ("xml".equalsIgnoreCase (name))
+ error ("Illegal processing instruction target", name, null);
+ if (!tryRead (endDelimPI)) {
+ requireWhitespace ();
+ parseUntil (endDelimPI);
+ }
+ expandPE = saved;
+ handler.processingInstruction (name, dataBufferToString ());
+ }
- // VC: Proper Decl/PE Nesting
- if (readBuffer != saved)
- {
- handler.verror("Illegal Declaration/PE nesting");
- }
- }
-
- /**
- * Parse an element, with its tags.
- * <pre>
- * [39] element ::= EmptyElementTag | STag content ETag
- * [40] STag ::= '<' Name (S Attribute)* S? '>'
- * [44] EmptyElementTag ::= '<' Name (S Attribute)* S? '/>'
- * </pre>
- * <p> (The '<' has already been read.)
- * <p>NOTE: this method actually chains onto parseContent (), if necessary,
- * and parseContent () will take care of calling parseETag ().
- */
- private void parseElement(boolean maybeGetSubset)
+
+ static final char endDelimCDATA [] = { ']', ']', '>' };
+
+ private boolean isDirtyCurrentElement;
+
+ /**
+ * Parse a CDATA section.
+ * <pre>
+ * [18] CDSect ::= CDStart CData CDEnd
+ * [19] CDStart ::= '<![CDATA['
+ * [20] CData ::= (Char* - (Char* ']]>' Char*))
+ * [21] CDEnd ::= ']]>'
+ * </pre>
+ * <p> (The '<![CDATA[' has already been read.)
+ */
+ private void parseCDSect ()
throws Exception
- {
- String gi;
- char c;
- int oldElementContent = currentElementContent;
- String oldElement = currentElement;
- ElementDecl element;
-
- // This is the (global) counter for the
- // array of specified attributes.
- tagAttributePos = 0;
-
- // Read the element type name.
- gi = readNmtoken(true);
-
- // If we saw no DTD, and this is the document root element,
- // let the application modify the input stream by providing one.
- if (maybeGetSubset)
- {
- InputSource subset = handler.getExternalSubset(gi,
- handler.getSystemId());
- if (subset != null)
- {
- String publicId = subset.getPublicId();
- String systemId = subset.getSystemId();
-
- handler.warn("modifying document by adding DTD");
- handler.doctypeDecl(gi, publicId, systemId);
- pushString(null, ">");
-
- // NOTE: [dtd] is so we say what SAX2 expects,
- // though it's misleading (subset, not entire dtd)
- pushURL(true, "[dtd]",
- new ExternalIdentifiers(publicId, systemId, null),
- subset.getCharacterStream(),
- subset.getByteStream(),
- subset.getEncoding(),
- false);
-
- // Loop until we end up back at '>'
- while (true)
- {
- doReport = expandPE = true;
- skipWhitespace();
- doReport = expandPE = false;
- if (tryRead('>'))
- {
- break;
- }
- else
- {
- expandPE = true;
- parseMarkupdecl();
- expandPE = false;
- }
- }
-
- // the ">" string isn't popped yet
- if (inputStack.size() != 1)
- {
- error("external subset has unmatched '>'");
- }
-
- handler.endDoctype();
- }
- }
-
- // Determine the current content type.
- currentElement = gi;
- element = (ElementDecl) elementInfo.get(gi);
- currentElementContent = getContentType(element, CONTENT_ANY);
-
- // Read the attributes, if any.
- // After this loop, "c" is the closing delimiter.
- boolean white = tryWhitespace();
- c = readCh();
- while (c != '/' && c != '>')
- {
- unread(c);
- if (!white)
- {
- error("need whitespace between attributes");
- }
- parseAttribute(gi);
- white = tryWhitespace();
- c = readCh();
- }
-
- // Supply any defaulted attributes.
- Iterator atts = declaredAttributes(element);
- if (atts != null)
- {
- String aname;
-loop:
- while (atts.hasNext())
- {
- aname = (String) atts.next();
- // See if it was specified.
- for (int i = 0; i < tagAttributePos; i++)
- {
- if (tagAttributes[i] == aname)
- {
- continue loop;
- }
- }
- // ... or has a default
- String value = getAttributeDefaultValue(gi, aname);
-
- if (value == null)
- {
- continue;
- }
- handler.attribute(aname, value, false);
- }
- }
+ {
+ parseUntil (endDelimCDATA);
+ dataBufferFlush ();
+ }
- // Figure out if this is a start tag
- // or an empty element, and dispatch an
- // event accordingly.
- switch (c)
- {
- case '>':
- handler.startElement(gi);
- parseContent();
- break;
- case '/':
- require('>');
- handler.startElement(gi);
- handler.endElement(gi);
- break;
- }
- // Restore the previous state.
- currentElement = oldElement;
- currentElementContent = oldElementContent;
- }
-
- /**
- * Parse an attribute assignment.
- * <pre>
- * [41] Attribute ::= Name Eq AttValue
- * </pre>
- * @param name The name of the attribute's element.
- * @see SAXDriver#attribute
- */
- private void parseAttribute(String name)
+ /**
+ * Parse the prolog of an XML document.
+ * <pre>
+ * [22] prolog ::= XMLDecl? Misc* (Doctypedecl Misc*)?
+ * </pre>
+ * <p>We do not look for the XML declaration here, because it was
+ * handled by pushURL ().
+ * @see pushURL
+ * @return true if a DTD was read.
+ */
+ private boolean parseProlog ()
throws Exception
- {
- String aname;
- String type;
- String value;
- int flags = LIT_ATTRIBUTE | LIT_ENTITY_REF;
-
- // Read the attribute name.
- aname = readNmtoken(true);
- type = getAttributeType(name, aname);
-
- // Parse '='
- parseEq();
-
- // Read the value, normalizing whitespace
- // unless it is CDATA.
- if (handler.stringInterning)
- {
- if (type == "CDATA" || type == null)
- {
- value = readLiteral(flags);
- }
- else
- {
- value = readLiteral(flags | LIT_NORMALIZE);
- }
- }
- else
- {
- if (type.equals("CDATA") || type == null)
- {
- value = readLiteral(flags);
- }
- else
- {
- value = readLiteral(flags | LIT_NORMALIZE);
- }
- }
+ {
+ parseMisc ();
+
+ if (tryRead ("<!DOCTYPE")) {
+ parseDoctypedecl ();
+ parseMisc ();
+ return true;
+ }
+ return false;
+ }
- // WFC: no duplicate attributes
- for (int i = 0; i < tagAttributePos; i++)
- {
- if (aname.equals(tagAttributes [i]))
+ private void checkLegalVersion (String version)
+ throws SAXException
+ {
+ int len = version.length ();
+ for (int i = 0; i < len; i++) {
+ char c = version.charAt (i);
+ if ('0' <= c && c <= '9')
+ continue;
+ if (c == '_' || c == '.' || c == ':' || c == '-')
+ continue;
+ if ('a' <= c && c <= 'z')
+ continue;
+ if ('A' <= c && c <= 'Z')
+ continue;
+ error ("illegal character in version", version, "1.0");
+ }
+ }
+
+
+ /**
+ * Parse the XML declaration.
+ * <pre>
+ * [23] XMLDecl ::= '<?xml' VersionInfo EncodingDecl? SDDecl? S? '?>'
+ * [24] VersionInfo ::= S 'version' Eq
+ * ("'" VersionNum "'" | '"' VersionNum '"' )
+ * [26] VersionNum ::= ([a-zA-Z0-9_.:] | '-')*
+ * [32] SDDecl ::= S 'standalone' Eq
+ * ( "'"" ('yes' | 'no') "'"" | '"' ("yes" | "no") '"' )
+ * [80] EncodingDecl ::= S 'encoding' Eq
+ * ( "'" EncName "'" | "'" EncName "'" )
+ * [81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')*
+ * </pre>
+ * <p> (The <code><?xml</code> and whitespace have already been read.)
+ * @return the encoding in the declaration, uppercased; or null
+ * @see #parseTextDecl
+ * @see #setupDecoding
+ */
+ private String parseXMLDecl (boolean ignoreEncoding)
+ throws SAXException, IOException
+ {
+ String version;
+ String encodingName = null;
+ String standalone = null;
+ int flags = LIT_DISABLE_CREF | LIT_DISABLE_PE | LIT_DISABLE_EREF;
+ String inputEncoding = null;
+
+ switch (this.encoding)
{
- error("duplicate attribute", aname, null);
+ case ENCODING_EXTERNAL:
+ case ENCODING_UTF_8:
+ inputEncoding = "UTF-8";
+ break;
+ case ENCODING_ISO_8859_1:
+ inputEncoding = "ISO-8859-1";
+ break;
+ case ENCODING_UCS_2_12:
+ inputEncoding = "UTF-16BE";
+ break;
+ case ENCODING_UCS_2_21:
+ inputEncoding = "UTF-16LE";
+ break;
}
- }
- // Inform the handler about the
- // attribute.
- handler.attribute(aname, value, true);
- dataBufferPos = 0;
-
- // Note that the attribute has been
- // specified.
- if (tagAttributePos == tagAttributes.length)
- {
- String newAttrib[] = new String[tagAttributes.length * 2];
- System.arraycopy(tagAttributes, 0, newAttrib, 0, tagAttributePos);
- tagAttributes = newAttrib;
- }
- tagAttributes[tagAttributePos++] = aname;
- }
+ // Read the version.
+ require ("version");
+ parseEq ();
+ checkLegalVersion (version = readLiteral (flags));
+ if (!version.equals ("1.0")){
+ if(version.equals ("1.1")){
+ handler.warn ("expected XML version 1.0, not: " + version);
+ xmlVersion = XML_11;
+ }else {
+ error("illegal XML version", version, "1.0 or 1.1");
+ }
+ }
+ else
+ xmlVersion = XML_10;
+ // Try reading an encoding declaration.
+ boolean white = tryWhitespace ();
+
+ if (tryRead ("encoding")) {
+ if (!white)
+ error ("whitespace required before 'encoding='");
+ parseEq ();
+ encodingName = readLiteral (flags);
+ if (!ignoreEncoding)
+ setupDecoding (encodingName);
+ }
+
+ // Try reading a standalone declaration
+ if (encodingName != null)
+ white = tryWhitespace ();
+ if (tryRead ("standalone")) {
+ if (!white)
+ error ("whitespace required before 'standalone='");
+ parseEq ();
+ standalone = readLiteral (flags);
+ if ("yes".equals (standalone))
+ docIsStandalone = true;
+ else if (!"no".equals (standalone))
+ error ("standalone flag must be 'yes' or 'no'");
+ }
+
+ skipWhitespace ();
+ require ("?>");
+
+ if (inputEncoding == null)
+ {
+ inputEncoding = encodingName;
+ }
+ handler.xmlDecl(version, encodingName, "yes".equals(standalone),
+ inputEncoding);
+
+ return encodingName;
+ }
- /**
- * Parse an equals sign surrounded by optional whitespace.
- * <pre>
- * [25] Eq ::= S? '=' S?
- * </pre>
- */
- private void parseEq()
+
+ /**
+ * Parse a text declaration.
+ * <pre>
+ * [79] TextDecl ::= '<?xml' VersionInfo? EncodingDecl S? '?>'
+ * [80] EncodingDecl ::= S 'encoding' Eq
+ * ( '"' EncName '"' | "'" EncName "'" )
+ * [81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')*
+ * </pre>
+ * <p> (The <code><?xml</code>' and whitespace have already been read.)
+ * @return the encoding in the declaration, uppercased; or null
+ * @see #parseXMLDecl
+ * @see #setupDecoding
+ */
+ private String parseTextDecl (boolean ignoreEncoding)
throws SAXException, IOException
- {
- skipWhitespace();
- require('=');
- skipWhitespace();
- }
+ {
+ String encodingName = null;
+ int flags = LIT_DISABLE_CREF | LIT_DISABLE_PE | LIT_DISABLE_EREF;
+
+ // Read an optional version.
+ if (tryRead ("version")) {
+ String version;
+ parseEq ();
+ checkLegalVersion (version = readLiteral (flags));
+
+ if (version.equals ("1.1")){
+ if (xmlVersion == XML_10){
+ error ("external subset has later version number.", "1.0", version);
+ }
+ handler.warn ("expected XML version 1.0, not: " + version);
+ xmlVersion = XML_11;
+ }else if(!version.equals ("1.0")) {
+ error("illegal XML version", version, "1.0 or 1.1");
+ }
+ requireWhitespace ();
+ }
+
+
+ // Read the encoding.
+ require ("encoding");
+ parseEq ();
+ encodingName = readLiteral (flags);
+ if (!ignoreEncoding)
+ setupDecoding (encodingName);
+
+ skipWhitespace ();
+ require ("?>");
+
+ return encodingName;
+ }
- /**
- * Parse an end tag.
- * <pre>
- * [42] ETag ::= '</' Name S? '>'
- * </pre>
- * <p>NOTE: parseContent () chains to here, we already read the
- * "</".
- */
- private void parseETag()
+
+ /**
+ * Sets up internal state so that we can decode an entity using the
+ * specified encoding. This is used when we start to read an entity
+ * and we have been given knowledge of its encoding before we start to
+ * read any data (e.g. from a SAX input source or from a MIME type).
+ *
+ * <p> It is also used after autodetection, at which point only very
+ * limited adjustments to the encoding may be used (switching between
+ * related builtin decoders).
+ *
+ * @param encodingName The name of the encoding specified by the user.
+ * @exception IOException if the encoding isn't supported either
+ * internally to this parser, or by the hosting JVM.
+ * @see #parseXMLDecl
+ * @see #parseTextDecl
+ */
+ private void setupDecoding (String encodingName)
+ throws SAXException, IOException
+ {
+ encodingName = encodingName.toUpperCase ();
+
+ // ENCODING_EXTERNAL indicates an encoding that wasn't
+ // autodetected ... we can use builtin decoders, or
+ // ones from the JVM (InputStreamReader).
+
+ // Otherwise we can only tweak what was autodetected, and
+ // only for single byte (ASCII derived) builtin encodings.
+
+ // ASCII-derived encodings
+ if (encoding == ENCODING_UTF_8 || encoding == ENCODING_EXTERNAL) {
+ if (encodingName.equals ("ISO-8859-1")
+ || encodingName.equals ("8859_1")
+ || encodingName.equals ("ISO8859_1")
+ ) {
+ encoding = ENCODING_ISO_8859_1;
+ return;
+ } else if (encodingName.equals ("US-ASCII")
+ || encodingName.equals ("ASCII")) {
+ encoding = ENCODING_ASCII;
+ return;
+ } else if (encodingName.equals ("UTF-8")
+ || encodingName.equals ("UTF8")) {
+ encoding = ENCODING_UTF_8;
+ return;
+ } else if (encoding != ENCODING_EXTERNAL) {
+ // used to start with a new reader ...
+ throw new UnsupportedEncodingException (encodingName);
+ }
+ // else fallthrough ...
+ // it's ASCII-ish and something other than a builtin
+ }
+
+ // Unicode and such
+ if (encoding == ENCODING_UCS_2_12 || encoding == ENCODING_UCS_2_21) {
+ if (!(encodingName.equals ("ISO-10646-UCS-2")
+ || encodingName.equals ("UTF-16")
+ || encodingName.equals ("UTF-16BE")
+ || encodingName.equals ("UTF-16LE")))
+ error ("unsupported Unicode encoding",
+ encodingName,
+ "UTF-16");
+ return;
+ }
+
+ // four byte encodings
+ if (encoding == ENCODING_UCS_4_1234
+ || encoding == ENCODING_UCS_4_4321
+ || encoding == ENCODING_UCS_4_2143
+ || encoding == ENCODING_UCS_4_3412) {
+ // Strictly: "UCS-4" == "UTF-32BE"; also, "UTF-32LE" exists
+ if (!encodingName.equals ("ISO-10646-UCS-4"))
+ error ("unsupported 32-bit encoding",
+ encodingName,
+ "ISO-10646-UCS-4");
+ return;
+ }
+
+ // assert encoding == ENCODING_EXTERNAL
+ // if (encoding != ENCODING_EXTERNAL)
+ // throw new RuntimeException ("encoding = " + encoding);
+
+ if (encodingName.equals ("UTF-16BE")) {
+ encoding = ENCODING_UCS_2_12;
+ return;
+ }
+ if (encodingName.equals ("UTF-16LE")) {
+ encoding = ENCODING_UCS_2_21;
+ return;
+ }
+
+ // We couldn't use the builtin decoders at all. But we can try to
+ // create a reader, since we haven't messed up buffering. Tweak
+ // the encoding name if necessary.
+
+ if (encodingName.equals ("UTF-16")
+ || encodingName.equals ("ISO-10646-UCS-2"))
+ encodingName = "Unicode";
+ // Ignoring all the EBCDIC aliases here
+
+ reader = new InputStreamReader (is, encodingName);
+ sourceType = INPUT_READER;
+ }
+
+
+ /**
+ * Parse miscellaneous markup outside the document element and DOCTYPE
+ * declaration.
+ * <pre>
+ * [27] Misc ::= Comment | PI | S
+ * </pre>
+ */
+ private void parseMisc ()
throws Exception
- {
- require(currentElement);
- skipWhitespace();
- require('>');
- handler.endElement(currentElement);
- // not re-reporting any SAXException re bogus end tags,
- // even though that diagnostic might be clearer ...
- }
-
- /**
- * Parse the content of an element.
- * <pre>
- * [43] content ::= (element | CharData | Reference
- * | CDSect | PI | Comment)*
- * [67] Reference ::= EntityRef | CharRef
- * </pre>
- * <p> NOTE: consumes ETtag.
- */
- private void parseContent()
+ {
+ while (true) {
+ skipWhitespace ();
+ if (tryRead (startDelimPI)) {
+ parsePI ();
+ } else if (tryRead (startDelimComment)) {
+ parseComment ();
+ } else {
+ return;
+ }
+ }
+ }
+
+
+ /**
+ * Parse a document type declaration.
+ * <pre>
+ * [28] doctypedecl ::= '<!DOCTYPE' S Name (S ExternalID)? S?
+ * ('[' (markupdecl | PEReference | S)* ']' S?)? '>'
+ * </pre>
+ * <p> (The <code><!DOCTYPE</code> has already been read.)
+ */
+ private void parseDoctypedecl ()
throws Exception
- {
- char c;
-
- while (true)
- {
- // consume characters (or ignorable whitspace) until delimiter
- parseCharData();
-
- // Handle delimiters
- c = readCh();
- switch (c)
- {
- case '&': // Found "&"
- c = readCh();
- if (c == '#')
- {
- parseCharRef();
- }
- else
- {
- unread(c);
- parseEntityRef(true);
- }
- isDirtyCurrentElement = true;
- break;
-
- case '<': // Found "<"
- dataBufferFlush();
- c = readCh();
- switch (c)
- {
- case '!': // Found "<!"
- c = readCh();
- switch (c)
- {
- case '-': // Found "<!-"
- require('-');
- isDirtyCurrentElement = false;
- parseComment();
- break;
- case '[': // Found "<!["
- isDirtyCurrentElement = false;
- require("CDATA[");
- handler.startCDATA();
- inCDATA = true;
- parseCDSect();
- inCDATA = false;
- handler.endCDATA();
- break;
- default:
- error("expected comment or CDATA section", c, null);
- break;
- }
- break;
-
- case '?': // Found "<?"
- isDirtyCurrentElement = false;
- parsePI();
- break;
-
- case '/': // Found "</"
- isDirtyCurrentElement = false;
- parseETag();
- return;
-
- default: // Found "<" followed by something else
- isDirtyCurrentElement = false;
- unread(c);
- parseElement(false);
- break;
- }
- }
- }
- }
-
- /**
- * Parse an element type declaration.
- * <pre>
- * [45] elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>'
- * </pre>
- * <p> NOTE: the '<!ELEMENT' has already been read.
- */
- private void parseElementDecl()
+ {
+ String rootName, ids[];
+
+ // Read the document type name.
+ requireWhitespace ();
+ rootName = readNmtoken (true);
+
+ // Read the External subset's IDs
+ skipWhitespace ();
+ ids = readExternalIds (false, true);
+
+ // report (a) declaration of name, (b) lexical info (ids)
+ handler.doctypeDecl (rootName, ids [0], ids [1]);
+
+ // Internal subset is parsed first, if present
+ skipWhitespace ();
+ if (tryRead ('[')) {
+
+ // loop until the subset ends
+ while (true) {
+ doReport = expandPE = true;
+ skipWhitespace ();
+ doReport = expandPE = false;
+ if (tryRead (']')) {
+ break; // end of subset
+ } else {
+ // WFC, PEs in internal subset (only between decls)
+ peIsError = expandPE = true;
+ parseMarkupdecl ();
+ peIsError = expandPE = false;
+ }
+ }
+ }
+ skipWhitespace ();
+ require ('>');
+
+ // Read the external subset, if any
+ InputSource subset;
+
+ if (ids [1] == null)
+ subset = handler.getExternalSubset (rootName,
+ handler.getSystemId ());
+ else
+ subset = null;
+ if (ids [1] != null || subset != null) {
+ pushString (null, ">");
+
+ // NOTE: [dtd] is so we say what SAX2 expects,
+ // though it's misleading (subset, not entire dtd)
+ if (ids [1] != null)
+ pushURL (true, "[dtd]", ids, null, null, null, true);
+ else {
+ handler.warn ("modifying document by adding external subset");
+ pushURL (true, "[dtd]",
+ new String [] { subset.getPublicId (),
+ subset.getSystemId (), null },
+ subset.getCharacterStream (),
+ subset.getByteStream (),
+ subset.getEncoding (),
+ false);
+ }
+
+ // Loop until we end up back at '>'
+ while (true) {
+ doReport = expandPE = true;
+ skipWhitespace ();
+ doReport = expandPE = false;
+ if (tryRead ('>')) {
+ break;
+ } else {
+ expandPE = true;
+ parseMarkupdecl ();
+ expandPE = false;
+ }
+ }
+
+ // the ">" string isn't popped yet
+ if (inputStack.size () != 1)
+ error ("external subset has unmatched '>'");
+ }
+
+ // done dtd
+ handler.endDoctype ();
+ expandPE = false;
+ doReport = true;
+ }
+
+
+ /**
+ * Parse a markup declaration in the internal or external DTD subset.
+ * <pre>
+ * [29] markupdecl ::= elementdecl | Attlistdecl | EntityDecl
+ * | NotationDecl | PI | Comment
+ * [30] extSubsetDecl ::= (markupdecl | conditionalSect
+ * | PEReference | S) *
+ * </pre>
+ * <p> Reading toplevel PE references is handled as a lexical issue
+ * by the caller, as is whitespace.
+ */
+ private void parseMarkupdecl ()
throws Exception
- {
- String name;
-
- requireWhitespace();
- // Read the element type name.
- name = readNmtoken(true);
+ {
+ char saved [] = null;
+ boolean savedPE = expandPE;
+
+ // prevent "<%foo;" and ensures saved entity is right
+ require ('<');
+ unread ('<');
+ expandPE = false;
+
+ if (tryRead ("<!ELEMENT")) {
+ saved = readBuffer;
+ expandPE = savedPE;
+ parseElementDecl ();
+ } else if (tryRead ("<!ATTLIST")) {
+ saved = readBuffer;
+ expandPE = savedPE;
+ parseAttlistDecl ();
+ } else if (tryRead ("<!ENTITY")) {
+ saved = readBuffer;
+ expandPE = savedPE;
+ parseEntityDecl ();
+ } else if (tryRead ("<!NOTATION")) {
+ saved = readBuffer;
+ expandPE = savedPE;
+ parseNotationDecl ();
+ } else if (tryRead (startDelimPI)) {
+ saved = readBuffer;
+ expandPE = savedPE;
+ parsePI ();
+ } else if (tryRead (startDelimComment)) {
+ saved = readBuffer;
+ expandPE = savedPE;
+ parseComment ();
+ } else if (tryRead ("<![")) {
+ saved = readBuffer;
+ expandPE = savedPE;
+ if (inputStack.size () > 0)
+ parseConditionalSect (saved);
+ else
+ error ("conditional sections illegal in internal subset");
+ } else {
+ error ("expected markup declaration");
+ }
+
+ // VC: Proper Decl/PE Nesting
+ if (readBuffer != saved)
+ handler.verror ("Illegal Declaration/PE nesting");
+ }
- requireWhitespace();
- // Read the content model.
- parseContentspec(name);
-
- skipWhitespace();
- require('>');
- }
- /**
- * Content specification.
- * <pre>
- * [46] contentspec ::= 'EMPTY' | 'ANY' | Mixed | elements
- * </pre>
- */
- private void parseContentspec(String name)
+ /**
+ * Parse an element, with its tags.
+ * <pre>
+ * [39] element ::= EmptyElementTag | STag content ETag
+ * [40] STag ::= '<' Name (S Attribute)* S? '>'
+ * [44] EmptyElementTag ::= '<' Name (S Attribute)* S? '/>'
+ * </pre>
+ * <p> (The '<' has already been read.)
+ * <p>NOTE: this method actually chains onto parseContent (), if necessary,
+ * and parseContent () will take care of calling parseETag ().
+ */
+ private void parseElement (boolean maybeGetSubset)
throws Exception
- {
- // FIXME: move elementDecl() into setElement(), pass EMTPY/ANY ...
- if (tryRead("EMPTY"))
- {
- setElement(name, CONTENT_EMPTY, null, null);
- if (!skippedPE)
- {
- handler.getDeclHandler().elementDecl(name, "EMPTY");
- }
- return;
- }
- else if (tryRead("ANY"))
- {
- setElement(name, CONTENT_ANY, null, null);
- if (!skippedPE)
- {
- handler.getDeclHandler().elementDecl(name, "ANY");
- }
- return;
- }
- else
- {
- String model;
- char[] saved;
-
- require('(');
- saved = readBuffer;
- dataBufferAppend('(');
- skipWhitespace();
- if (tryRead("#PCDATA"))
- {
- dataBufferAppend("#PCDATA");
- parseMixed(saved);
- model = dataBufferToString();
- setElement(name, CONTENT_MIXED, model, null);
- }
- else
- {
- parseElements(saved);
- model = dataBufferToString();
- setElement(name, CONTENT_ELEMENTS, model, null);
- }
- if (!skippedPE)
- {
- handler.getDeclHandler().elementDecl(name, model);
- }
- }
- }
-
- /**
- * Parse an element-content model.
- * <pre>
- * [47] elements ::= (choice | seq) ('?' | '*' | '+')?
- * [49] choice ::= '(' S? cp (S? '|' S? cp)+ S? ')'
- * [50] seq ::= '(' S? cp (S? ',' S? cp)* S? ')'
- * </pre>
- *
- * <p> NOTE: the opening '(' and S have already been read.
- *
- * @param saved Buffer for entity that should have the terminal ')'
- */
- private void parseElements(char[] saved)
+ {
+ String gi;
+ char c;
+ int oldElementContent = currentElementContent;
+ String oldElement = currentElement;
+ Object element [];
+
+ // This is the (global) counter for the
+ // array of specified attributes.
+ tagAttributePos = 0;
+
+ // Read the element type name.
+ gi = readNmtoken (true);
+
+ // If we saw no DTD, and this is the document root element,
+ // let the application modify the input stream by providing one.
+ if (maybeGetSubset) {
+ InputSource subset = handler.getExternalSubset (gi,
+ handler.getSystemId ());
+ if (subset != null) {
+ String publicId = subset.getPublicId ();
+ String systemId = subset.getSystemId ();
+
+ handler.warn ("modifying document by adding DTD");
+ handler.doctypeDecl (gi, publicId, systemId);
+ pushString (null, ">");
+
+ // NOTE: [dtd] is so we say what SAX2 expects,
+ // though it's misleading (subset, not entire dtd)
+ pushURL (true, "[dtd]",
+ new String [] { publicId, systemId, null },
+ subset.getCharacterStream (),
+ subset.getByteStream (),
+ subset.getEncoding (),
+ false);
+
+ // Loop until we end up back at '>'
+ while (true) {
+ doReport = expandPE = true;
+ skipWhitespace ();
+ doReport = expandPE = false;
+ if (tryRead ('>')) {
+ break;
+ } else {
+ expandPE = true;
+ parseMarkupdecl ();
+ expandPE = false;
+ }
+ }
+
+ // the ">" string isn't popped yet
+ if (inputStack.size () != 1)
+ error ("external subset has unmatched '>'");
+
+ handler.endDoctype ();
+ }
+ }
+
+ // Determine the current content type.
+ currentElement = gi;
+ element = (Object []) elementInfo.get (gi);
+ currentElementContent = getContentType (element, CONTENT_ANY);
+
+ // Read the attributes, if any.
+ // After this loop, "c" is the closing delimiter.
+ boolean white = tryWhitespace ();
+ c = readCh ();
+ while (c != '/' && c != '>') {
+ unread (c);
+ if (!white)
+ error ("need whitespace between attributes");
+ parseAttribute (gi);
+ white = tryWhitespace ();
+ c = readCh ();
+ }
+
+ // Supply any defaulted attributes.
+ Enumeration atts = declaredAttributes (element);
+ if (atts != null) {
+ String aname;
+loop:
+ while (atts.hasMoreElements ()) {
+ aname = (String) atts.nextElement ();
+ // See if it was specified.
+ for (int i = 0; i < tagAttributePos; i++) {
+ if (tagAttributes [i] == aname) {
+ continue loop;
+ }
+ }
+ // ... or has a default
+ String value = getAttributeDefaultValue (gi, aname);
+
+ if (value == null)
+ continue;
+ handler.attribute (aname, value, false);
+ }
+ }
+
+ // Figure out if this is a start tag
+ // or an empty element, and dispatch an
+ // event accordingly.
+ switch (c) {
+ case '>':
+ handler.startElement (gi);
+ parseContent ();
+ break;
+ case '/':
+ require ('>');
+ handler.startElement (gi);
+ handler.endElement (gi);
+ break;
+ }
+
+ // Restore the previous state.
+ currentElement = oldElement;
+ currentElementContent = oldElementContent;
+ }
+
+
+ /**
+ * Parse an attribute assignment.
+ * <pre>
+ * [41] Attribute ::= Name Eq AttValue
+ * </pre>
+ * @param name The name of the attribute's element.
+ * @see SAXDriver#attribute
+ */
+ private void parseAttribute (String name)
throws Exception
- {
- char c;
- char sep;
-
- // Parse the first content particle
- skipWhitespace();
- parseCp();
-
- // Check for end or for a separator.
- skipWhitespace();
- c = readCh();
- switch (c)
- {
- case ')':
- // VC: Proper Group/PE Nesting
- if (readBuffer != saved)
- {
- handler.verror("Illegal Group/PE nesting");
- }
-
- dataBufferAppend(')');
- c = readCh();
- switch (c)
- {
- case '*':
- case '+':
- case '?':
- dataBufferAppend(c);
- break;
- default:
- unread(c);
- }
- return;
- case ',': // Register the separator.
- case '|':
- sep = c;
- dataBufferAppend(c);
- break;
- default:
- error("bad separator in content model", c, null);
- return;
- }
-
- // Parse the rest of the content model.
- while (true)
- {
- skipWhitespace();
- parseCp();
- skipWhitespace();
- c = readCh();
- if (c == ')')
- {
- // VC: Proper Group/PE Nesting
- if (readBuffer != saved)
- {
- handler.verror("Illegal Group/PE nesting");
- }
-
- dataBufferAppend(')');
- break;
- }
- else if (c != sep)
- {
- error("bad separator in content model", c, null);
- return;
- }
- else
- {
- dataBufferAppend(c);
- }
- }
-
- // Check for the occurrence indicator.
- c = readCh();
- switch (c)
- {
- case '?':
- case '*':
- case '+':
- dataBufferAppend(c);
- return;
- default:
- unread(c);
- return;
- }
+ {
+ String aname;
+ String type;
+ String value;
+ int flags = LIT_ATTRIBUTE | LIT_ENTITY_REF;
+
+ // Read the attribute name.
+ aname = readNmtoken (true);
+ type = getAttributeType (name, aname);
+
+ // Parse '='
+ parseEq ();
+
+ // Read the value, normalizing whitespace
+ // unless it is CDATA.
+ if (handler.getFeature (SAXDriver.FEATURE + "string-interning")) {
+ if (type == "CDATA" || type == null) {
+ value = readLiteral (flags);
+ } else {
+ value = readLiteral (flags | LIT_NORMALIZE);
+ }
+ } else {
+ if (type.equals("CDATA") || type == null) {
+ value = readLiteral (flags);
+ } else {
+ value = readLiteral (flags | LIT_NORMALIZE);
+ }
}
-
- /**
- * Parse a content particle.
- * <pre>
- * [48] cp ::= (Name | choice | seq) ('?' | '*' | '+')?
- * </pre>
- */
- private void parseCp()
+
+ // WFC: no duplicate attributes
+ for (int i = 0; i < tagAttributePos; i++)
+ if (aname.equals (tagAttributes [i]))
+ error ("duplicate attribute", aname, null);
+
+ // Inform the handler about the
+ // attribute.
+ handler.attribute (aname, value, true);
+ dataBufferPos = 0;
+
+ // Note that the attribute has been
+ // specified.
+ if (tagAttributePos == tagAttributes.length) {
+ String newAttrib[] = new String [tagAttributes.length * 2];
+ System.arraycopy (tagAttributes, 0, newAttrib, 0, tagAttributePos);
+ tagAttributes = newAttrib;
+ }
+ tagAttributes [tagAttributePos++] = aname;
+ }
+
+
+ /**
+ * Parse an equals sign surrounded by optional whitespace.
+ * <pre>
+ * [25] Eq ::= S? '=' S?
+ * </pre>
+ */
+ private void parseEq ()
+ throws SAXException, IOException
+ {
+ skipWhitespace ();
+ require ('=');
+ skipWhitespace ();
+ }
+
+
+ /**
+ * Parse an end tag.
+ * <pre>
+ * [42] ETag ::= '</' Name S? '>'
+ * </pre>
+ * <p>NOTE: parseContent () chains to here, we already read the
+ * "</".
+ */
+ private void parseETag ()
throws Exception
- {
- if (tryRead('('))
- {
- dataBufferAppend('(');
- parseElements(readBuffer);
- }
- else
- {
- dataBufferAppend(readNmtoken(true));
- char c = readCh();
- switch (c)
- {
- case '?':
- case '*':
- case '+':
- dataBufferAppend(c);
- break;
- default:
- unread(c);
- break;
- }
- }
- }
+ {
+ require (currentElement);
+ skipWhitespace ();
+ require ('>');
+ handler.endElement (currentElement);
+ // not re-reporting any SAXException re bogus end tags,
+ // even though that diagnostic might be clearer ...
+ }
- /**
- * Parse mixed content.
- * <pre>
- * [51] Mixed ::= '(' S? ( '#PCDATA' (S? '|' S? Name)*) S? ')*'
- * | '(' S? ('#PCDATA') S? ')'
- * </pre>
- *
- * @param saved Buffer for entity that should have the terminal ')'
- */
- private void parseMixed(char[] saved)
+
+ /**
+ * Parse the content of an element.
+ * <pre>
+ * [43] content ::= (element | CharData | Reference
+ * | CDSect | PI | Comment)*
+ * [67] Reference ::= EntityRef | CharRef
+ * </pre>
+ * <p> NOTE: consumes ETtag.
+ */
+ private void parseContent ()
throws Exception
- {
- // Check for PCDATA alone.
- skipWhitespace();
- if (tryRead(')'))
- {
- // VC: Proper Group/PE Nesting
- if (readBuffer != saved)
- {
- handler.verror("Illegal Group/PE nesting");
- }
-
- dataBufferAppend(")*");
- tryRead('*');
- return;
- }
-
- // Parse mixed content.
- skipWhitespace();
- while (!tryRead(")"))
- {
- require('|');
- dataBufferAppend('|');
- skipWhitespace();
- dataBufferAppend(readNmtoken(true));
- skipWhitespace();
- }
-
- // VC: Proper Group/PE Nesting
- if (readBuffer != saved)
- {
- handler.verror("Illegal Group/PE nesting");
- }
-
- require('*');
- dataBufferAppend(")*");
- }
-
- /**
- * Parse an attribute list declaration.
- * <pre>
- * [52] AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
- * </pre>
- * <p>NOTE: the '<!ATTLIST' has already been read.
- */
- private void parseAttlistDecl()
+ {
+ char c;
+
+ while (true) {
+ // consume characters (or ignorable whitspace) until delimiter
+ parseCharData ();
+
+ // Handle delimiters
+ c = readCh ();
+ switch (c) {
+
+ case '&': // Found "&"
+ c = readCh ();
+ if (c == '#') {
+ parseCharRef ();
+ } else {
+ unread (c);
+ parseEntityRef (true);
+ }
+ isDirtyCurrentElement = true;
+ break;
+
+ case '<': // Found "<"
+ dataBufferFlush ();
+ c = readCh ();
+ switch (c) {
+ case '!': // Found "<!"
+ c = readCh ();
+ switch (c) {
+ case '-': // Found "<!-"
+ require ('-');
+ isDirtyCurrentElement = false;
+ parseComment ();
+ break;
+ case '[': // Found "<!["
+ isDirtyCurrentElement = false;
+ require ("CDATA[");
+ handler.startCDATA ();
+ inCDATA = true;
+ parseCDSect ();
+ inCDATA = false;
+ handler.endCDATA ();
+ break;
+ default:
+ error ("expected comment or CDATA section", c, null);
+ break;
+ }
+ break;
+
+ case '?': // Found "<?"
+ isDirtyCurrentElement = false;
+ parsePI ();
+ break;
+
+ case '/': // Found "</"
+ isDirtyCurrentElement = false;
+ parseETag ();
+ return;
+
+ default: // Found "<" followed by something else
+ isDirtyCurrentElement = false;
+ unread (c);
+ parseElement (false);
+ break;
+ }
+ }
+ }
+
+ }
+
+
+ /**
+ * Parse an element type declaration.
+ * <pre>
+ * [45] elementdecl ::= '<!ELEMENT' S Name S contentspec S? '>'
+ * </pre>
+ * <p> NOTE: the '<!ELEMENT' has already been read.
+ */
+ private void parseElementDecl ()
throws Exception
- {
- String elementName;
-
- requireWhitespace();
- elementName = readNmtoken(true);
- boolean white = tryWhitespace();
- while (!tryRead('>'))
- {
- if (!white)
- {
- error("whitespace required before attribute definition");
- }
- parseAttDef(elementName);
- white = tryWhitespace();
- }
- }
-
- /**
- * Parse a single attribute definition.
- * <pre>
- * [53] AttDef ::= S Name S AttType S DefaultDecl
- * </pre>
- */
- private void parseAttDef(String elementName)
+ {
+ String name;
+
+ requireWhitespace ();
+ // Read the element type name.
+ name = readNmtoken (true);
+
+ requireWhitespace ();
+ // Read the content model.
+ parseContentspec (name);
+
+ skipWhitespace ();
+ require ('>');
+ }
+
+
+ /**
+ * Content specification.
+ * <pre>
+ * [46] contentspec ::= 'EMPTY' | 'ANY' | Mixed | elements
+ * </pre>
+ */
+ private void parseContentspec (String name)
+ throws Exception
+ {
+// FIXME: move elementDecl() into setElement(), pass EMTPY/ANY ...
+ if (tryRead ("EMPTY")) {
+ setElement (name, CONTENT_EMPTY, null, null);
+ if (!skippedPE)
+ handler.getDeclHandler ().elementDecl (name, "EMPTY");
+ return;
+ } else if (tryRead ("ANY")) {
+ setElement (name, CONTENT_ANY, null, null);
+ if (!skippedPE)
+ handler.getDeclHandler ().elementDecl (name, "ANY");
+ return;
+ } else {
+ String model;
+ char saved [];
+
+ require ('(');
+ saved = readBuffer;
+ dataBufferAppend ('(');
+ skipWhitespace ();
+ if (tryRead ("#PCDATA")) {
+ dataBufferAppend ("#PCDATA");
+ parseMixed (saved);
+ model = dataBufferToString ();
+ setElement (name, CONTENT_MIXED, model, null);
+ } else {
+ parseElements (saved);
+ model = dataBufferToString ();
+ setElement (name, CONTENT_ELEMENTS, model, null);
+ }
+ if (!skippedPE)
+ handler.getDeclHandler ().elementDecl (name, model);
+ }
+ }
+
+ /**
+ * Parse an element-content model.
+ * <pre>
+ * [47] elements ::= (choice | seq) ('?' | '*' | '+')?
+ * [49] choice ::= '(' S? cp (S? '|' S? cp)+ S? ')'
+ * [50] seq ::= '(' S? cp (S? ',' S? cp)* S? ')'
+ * </pre>
+ *
+ * <p> NOTE: the opening '(' and S have already been read.
+ *
+ * @param saved Buffer for entity that should have the terminal ')'
+ */
+ private void parseElements (char saved [])
+ throws Exception
+ {
+ char c;
+ char sep;
+
+ // Parse the first content particle
+ skipWhitespace ();
+ parseCp ();
+
+ // Check for end or for a separator.
+ skipWhitespace ();
+ c = readCh ();
+ switch (c) {
+ case ')':
+ // VC: Proper Group/PE Nesting
+ if (readBuffer != saved)
+ handler.verror ("Illegal Group/PE nesting");
+
+ dataBufferAppend (')');
+ c = readCh ();
+ switch (c) {
+ case '*':
+ case '+':
+ case '?':
+ dataBufferAppend (c);
+ break;
+ default:
+ unread (c);
+ }
+ return;
+ case ',': // Register the separator.
+ case '|':
+ sep = c;
+ dataBufferAppend (c);
+ break;
+ default:
+ error ("bad separator in content model", c, null);
+ return;
+ }
+
+ // Parse the rest of the content model.
+ while (true) {
+ skipWhitespace ();
+ parseCp ();
+ skipWhitespace ();
+ c = readCh ();
+ if (c == ')') {
+ // VC: Proper Group/PE Nesting
+ if (readBuffer != saved)
+ handler.verror ("Illegal Group/PE nesting");
+
+ dataBufferAppend (')');
+ break;
+ } else if (c != sep) {
+ error ("bad separator in content model", c, null);
+ return;
+ } else {
+ dataBufferAppend (c);
+ }
+ }
+
+ // Check for the occurrence indicator.
+ c = readCh ();
+ switch (c) {
+ case '?':
+ case '*':
+ case '+':
+ dataBufferAppend (c);
+ return;
+ default:
+ unread (c);
+ return;
+ }
+ }
+
+
+ /**
+ * Parse a content particle.
+ * <pre>
+ * [48] cp ::= (Name | choice | seq) ('?' | '*' | '+')?
+ * </pre>
+ */
+ private void parseCp ()
+ throws Exception
+ {
+ if (tryRead ('(')) {
+ dataBufferAppend ('(');
+ parseElements (readBuffer);
+ } else {
+ dataBufferAppend (readNmtoken (true));
+ char c = readCh ();
+ switch (c) {
+ case '?':
+ case '*':
+ case '+':
+ dataBufferAppend (c);
+ break;
+ default:
+ unread (c);
+ break;
+ }
+ }
+ }
+
+
+ /**
+ * Parse mixed content.
+ * <pre>
+ * [51] Mixed ::= '(' S? ( '#PCDATA' (S? '|' S? Name)*) S? ')*'
+ * | '(' S? ('#PCDATA') S? ')'
+ * </pre>
+ *
+ * @param saved Buffer for entity that should have the terminal ')'
+ */
+ private void parseMixed (char saved [])
throws Exception
- {
- String name;
- String type;
- String enumer = null;
-
- // Read the attribute name.
- name = readNmtoken(true);
+ {
+ // Check for PCDATA alone.
+ skipWhitespace ();
+ if (tryRead (')')) {
+ // VC: Proper Group/PE Nesting
+ if (readBuffer != saved)
+ handler.verror ("Illegal Group/PE nesting");
+
+ dataBufferAppend (")*");
+ tryRead ('*');
+ return;
+ }
+
+ // Parse mixed content.
+ skipWhitespace ();
+ while (!tryRead (")")) {
+ require ('|');
+ dataBufferAppend ('|');
+ skipWhitespace ();
+ dataBufferAppend (readNmtoken (true));
+ skipWhitespace ();
+ }
+
+ // VC: Proper Group/PE Nesting
+ if (readBuffer != saved)
+ handler.verror ("Illegal Group/PE nesting");
+
+ require ('*');
+ dataBufferAppend (")*");
+ }
- // Read the attribute type.
- requireWhitespace();
- type = readAttType();
- // Get the string of enumerated values if necessary.
- if (handler.stringInterning)
- {
- if ("ENUMERATION" == type || "NOTATION" == type)
- {
- enumer = dataBufferToString();
- }
- }
- else
- {
- if ("ENUMERATION".equals(type) || "NOTATION".equals(type))
- {
- enumer = dataBufferToString();
- }
- }
-
- // Read the default value.
- requireWhitespace();
- parseDefault(elementName, name, type, enumer);
+ /**
+ * Parse an attribute list declaration.
+ * <pre>
+ * [52] AttlistDecl ::= '<!ATTLIST' S Name AttDef* S? '>'
+ * </pre>
+ * <p>NOTE: the '<!ATTLIST' has already been read.
+ */
+ private void parseAttlistDecl ()
+ throws Exception
+ {
+ String elementName;
+
+ requireWhitespace ();
+ elementName = readNmtoken (true);
+ boolean white = tryWhitespace ();
+ while (!tryRead ('>')) {
+ if (!white)
+ error ("whitespace required before attribute definition");
+ parseAttDef (elementName);
+ white = tryWhitespace ();
+ }
+ }
+
+
+ /**
+ * Parse a single attribute definition.
+ * <pre>
+ * [53] AttDef ::= S Name S AttType S DefaultDecl
+ * </pre>
+ */
+ private void parseAttDef (String elementName)
+ throws Exception
+ {
+ String name;
+ String type;
+ String enumer = null;
+
+ // Read the attribute name.
+ name = readNmtoken (true);
+
+ // Read the attribute type.
+ requireWhitespace ();
+ type = readAttType ();
+
+ // Get the string of enumerated values if necessary.
+ if (handler.getFeature (SAXDriver.FEATURE + "string-interning")) {
+ if ("ENUMERATION" == type || "NOTATION" == type)
+ enumer = dataBufferToString ();
+ } else {
+ if ("ENUMERATION".equals(type) || "NOTATION".equals(type))
+ enumer = dataBufferToString ();
}
+ // Read the default value.
+ requireWhitespace ();
+ parseDefault (elementName, name, type, enumer);
+ }
+
+
/**
* Parse the attribute type.
* <pre>
* [54] AttType ::= StringType | TokenizedType | EnumeratedType
* [55] StringType ::= 'CDATA'
* [56] TokenizedType ::= 'ID' | 'IDREF' | 'IDREFS' | 'ENTITY'
- * | 'ENTITIES' | 'NMTOKEN' | 'NMTOKENS'
+ * | 'ENTITIES' | 'NMTOKEN' | 'NMTOKENS'
* [57] EnumeratedType ::= NotationType | Enumeration
* </pre>
*/
- private String readAttType()
+ private String readAttType ()
throws Exception
{
- if (tryRead('('))
- {
- parseEnumeration(false);
- return "ENUMERATION";
- }
- else
- {
- String typeString = readNmtoken(true);
- if (handler.stringInterning)
- {
- if ("NOTATION" == typeString)
- {
- parseNotationType();
- return typeString;
- }
- else if ("CDATA" == typeString
- || "ID" == typeString
- || "IDREF" == typeString
- || "IDREFS" == typeString
- || "ENTITY" == typeString
- || "ENTITIES" == typeString
- || "NMTOKEN" == typeString
- || "NMTOKENS" == typeString)
- {
- return typeString;
- }
- }
- else
- {
- if ("NOTATION".equals(typeString))
- {
- parseNotationType();
- return typeString;
- }
- else if ("CDATA".equals(typeString)
- || "ID".equals(typeString)
- || "IDREF".equals(typeString)
- || "IDREFS".equals(typeString)
- || "ENTITY".equals(typeString)
- || "ENTITIES".equals(typeString)
- || "NMTOKEN".equals(typeString)
- || "NMTOKENS".equals(typeString))
- {
- return typeString;
- }
- }
- error("illegal attribute type", typeString, null);
- return null;
- }
+ if (tryRead ('(')) {
+ parseEnumeration (false);
+ return "ENUMERATION";
+ } else {
+ String typeString = readNmtoken (true);
+ if (handler.getFeature (SAXDriver.FEATURE + "string-interning")) {
+ if ("NOTATION" == typeString) {
+ parseNotationType ();
+ return typeString;
+ } else if ("CDATA" == typeString
+ || "ID" == typeString
+ || "IDREF" == typeString
+ || "IDREFS" == typeString
+ || "ENTITY" == typeString
+ || "ENTITIES" == typeString
+ || "NMTOKEN" == typeString
+ || "NMTOKENS" == typeString)
+ return typeString;
+ } else {
+ if ("NOTATION".equals(typeString)) {
+ parseNotationType ();
+ return typeString;
+ } else if ("CDATA".equals(typeString)
+ || "ID".equals(typeString)
+ || "IDREF".equals(typeString)
+ || "IDREFS".equals(typeString)
+ || "ENTITY".equals(typeString)
+ || "ENTITIES".equals(typeString)
+ || "NMTOKEN".equals(typeString)
+ || "NMTOKENS".equals(typeString))
+ return typeString;
+ }
+ error ("illegal attribute type", typeString, null);
+ return null;
+ }
}
- /**
- * Parse an enumeration.
- * <pre>
- * [59] Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')'
- * </pre>
- * <p>NOTE: the '(' has already been read.
- */
- private void parseEnumeration(boolean isNames)
- throws Exception
- {
- dataBufferAppend('(');
-
- // Read the first token.
- skipWhitespace();
- dataBufferAppend(readNmtoken(isNames));
- // Read the remaining tokens.
- skipWhitespace();
- while (!tryRead(')'))
- {
- require('|');
- dataBufferAppend('|');
- skipWhitespace();
- dataBufferAppend(readNmtoken (isNames));
- skipWhitespace();
- }
- dataBufferAppend(')');
- }
- /**
- * Parse a notation type for an attribute.
- * <pre>
- * [58] NotationType ::= 'NOTATION' S '(' S? NameNtoks
- * (S? '|' S? name)* S? ')'
- * </pre>
- * <p>NOTE: the 'NOTATION' has already been read
- */
- private void parseNotationType()
+ /**
+ * Parse an enumeration.
+ * <pre>
+ * [59] Enumeration ::= '(' S? Nmtoken (S? '|' S? Nmtoken)* S? ')'
+ * </pre>
+ * <p>NOTE: the '(' has already been read.
+ */
+ private void parseEnumeration (boolean isNames)
throws Exception
- {
- requireWhitespace();
- require('(');
-
- parseEnumeration(true);
- }
+ {
+ dataBufferAppend ('(');
+
+ // Read the first token.
+ skipWhitespace ();
+ dataBufferAppend (readNmtoken (isNames));
+ // Read the remaining tokens.
+ skipWhitespace ();
+ while (!tryRead (')')) {
+ require ('|');
+ dataBufferAppend ('|');
+ skipWhitespace ();
+ dataBufferAppend (readNmtoken (isNames));
+ skipWhitespace ();
+ }
+ dataBufferAppend (')');
+ }
- /**
- * Parse the default value for an attribute.
- * <pre>
- * [60] DefaultDecl ::= '#REQUIRED' | '#IMPLIED'
- * | (('#FIXED' S)? AttValue)
- * </pre>
- */
- private void parseDefault(String elementName, String name,
- String type, String enumer)
+
+ /**
+ * Parse a notation type for an attribute.
+ * <pre>
+ * [58] NotationType ::= 'NOTATION' S '(' S? NameNtoks
+ * (S? '|' S? name)* S? ')'
+ * </pre>
+ * <p>NOTE: the 'NOTATION' has already been read
+ */
+ private void parseNotationType ()
throws Exception
- {
- int valueType = ATTRIBUTE_DEFAULT_SPECIFIED;
- String value = null;
- int flags = LIT_ATTRIBUTE;
- boolean saved = expandPE;
- String defaultType = null;
-
- // LIT_ATTRIBUTE forces '<' checks now (ASAP) and turns whitespace
- // chars to spaces (doesn't matter when that's done if it doesn't
- // interfere with char refs expanding to whitespace).
-
- if (!skippedPE)
- {
- flags |= LIT_ENTITY_REF;
- if (handler.stringInterning)
- {
- if ("CDATA" != type)
- {
- flags |= LIT_NORMALIZE;
- }
- }
- else
- {
- if (!"CDATA".equals(type))
- {
- flags |= LIT_NORMALIZE;
- }
- }
- }
-
- expandPE = false;
- if (tryRead('#'))
- {
- if (tryRead("FIXED"))
- {
- defaultType = "#FIXED";
- valueType = ATTRIBUTE_DEFAULT_FIXED;
- requireWhitespace();
- value = readLiteral(flags);
- }
- else if (tryRead("REQUIRED"))
- {
- defaultType = "#REQUIRED";
- valueType = ATTRIBUTE_DEFAULT_REQUIRED;
- }
- else if (tryRead("IMPLIED"))
- {
- defaultType = "#IMPLIED";
- valueType = ATTRIBUTE_DEFAULT_IMPLIED;
- }
- else
- {
- error("illegal keyword for attribute default value");
- }
- }
- else
- {
- value = readLiteral(flags);
- }
- expandPE = saved;
- setAttribute(elementName, name, type, enumer, value, valueType);
- if (handler.stringInterning)
- {
- if ("ENUMERATION" == type)
- {
- type = enumer;
- }
- else if ("NOTATION" == type)
- {
- type = "NOTATION " + enumer;
- }
- }
- else
- {
- if ("ENUMERATION".equals(type))
- {
- type = enumer;
- }
- else if ("NOTATION".equals(type))
- {
- type = "NOTATION " + enumer;
- }
- }
- if (!skippedPE)
- {
- handler.getDeclHandler().attributeDecl(elementName, name, type,
- defaultType, value);
- }
+ {
+ requireWhitespace ();
+ require ('(');
+
+ parseEnumeration (true);
+ }
+
+
+ /**
+ * Parse the default value for an attribute.
+ * <pre>
+ * [60] DefaultDecl ::= '#REQUIRED' | '#IMPLIED'
+ * | (('#FIXED' S)? AttValue)
+ * </pre>
+ */
+ private void parseDefault (
+ String elementName,
+ String name,
+ String type,
+ String enumer
+ ) throws Exception
+ {
+ int valueType = ATTRIBUTE_DEFAULT_SPECIFIED;
+ String value = null;
+ int flags = LIT_ATTRIBUTE;
+ boolean saved = expandPE;
+ String defaultType = null;
+
+ // LIT_ATTRIBUTE forces '<' checks now (ASAP) and turns whitespace
+ // chars to spaces (doesn't matter when that's done if it doesn't
+ // interfere with char refs expanding to whitespace).
+
+ if (!skippedPE) {
+ flags |= LIT_ENTITY_REF;
+ if (handler.getFeature (SAXDriver.FEATURE + "string-interning")) {
+ if ("CDATA" != type)
+ flags |= LIT_NORMALIZE;
+ } else {
+ if (!"CDATA".equals(type))
+ flags |= LIT_NORMALIZE;
+ }
+ }
+
+ expandPE = false;
+ if (tryRead ('#')) {
+ if (tryRead ("FIXED")) {
+ defaultType = "#FIXED";
+ valueType = ATTRIBUTE_DEFAULT_FIXED;
+ requireWhitespace ();
+ value = readLiteral (flags);
+ } else if (tryRead ("REQUIRED")) {
+ defaultType = "#REQUIRED";
+ valueType = ATTRIBUTE_DEFAULT_REQUIRED;
+ } else if (tryRead ("IMPLIED")) {
+ defaultType = "#IMPLIED";
+ valueType = ATTRIBUTE_DEFAULT_IMPLIED;
+ } else {
+ error ("illegal keyword for attribute default value");
+ }
+ } else
+ value = readLiteral (flags);
+ expandPE = saved;
+ setAttribute (elementName, name, type, enumer, value, valueType);
+ if (handler.getFeature (SAXDriver.FEATURE + "string-interning")) {
+ if ("ENUMERATION" == type)
+ type = enumer;
+ else if ("NOTATION" == type)
+ type = "NOTATION " + enumer;
+ } else {
+ if ("ENUMERATION".equals(type))
+ type = enumer;
+ else if ("NOTATION".equals(type))
+ type = "NOTATION " + enumer;
}
-
- /**
- * Parse a conditional section.
- * <pre>
- * [61] conditionalSect ::= includeSect || ignoreSect
- * [62] includeSect ::= '<![' S? 'INCLUDE' S? '['
- * extSubsetDecl ']]>'
- * [63] ignoreSect ::= '<![' S? 'IGNORE' S? '['
- * ignoreSectContents* ']]>'
- * [64] ignoreSectContents ::= Ignore
- * ('<![' ignoreSectContents* ']]>' Ignore )*
- * [65] Ignore ::= Char* - (Char* ( '<![' | ']]>') Char* )
- * </pre>
- * <p> NOTE: the '>![' has already been read.
- */
- private void parseConditionalSect(char[] saved)
+ if (!skippedPE) handler.getDeclHandler ()
+ .attributeDecl (elementName, name, type, defaultType, value);
+ }
+
+
+ /**
+ * Parse a conditional section.
+ * <pre>
+ * [61] conditionalSect ::= includeSect || ignoreSect
+ * [62] includeSect ::= '<![' S? 'INCLUDE' S? '['
+ * extSubsetDecl ']]>'
+ * [63] ignoreSect ::= '<![' S? 'IGNORE' S? '['
+ * ignoreSectContents* ']]>'
+ * [64] ignoreSectContents ::= Ignore
+ * ('<![' ignoreSectContents* ']]>' Ignore )*
+ * [65] Ignore ::= Char* - (Char* ( '<![' | ']]>') Char* )
+ * </pre>
+ * <p> NOTE: the '>![' has already been read.
+ */
+ private void parseConditionalSect (char saved [])
throws Exception
- {
- skipWhitespace();
- if (tryRead("INCLUDE"))
- {
- skipWhitespace();
- require('[');
- // VC: Proper Conditional Section/PE Nesting
- if (readBuffer != saved)
- {
- handler.verror("Illegal Conditional Section/PE nesting");
- }
- skipWhitespace();
- while (!tryRead("]]>"))
- {
- parseMarkupdecl();
- skipWhitespace();
- }
- }
- else if (tryRead("IGNORE"))
- {
- skipWhitespace();
- require('[');
- // VC: Proper Conditional Section/PE Nesting
- if (readBuffer != saved)
- {
- handler.verror("Illegal Conditional Section/PE nesting");
- }
- int nesting = 1;
- char c;
- expandPE = false;
- for (int nest = 1; nest > 0; )
- {
- c = readCh();
- switch (c)
- {
- case '<':
- if (tryRead("!["))
- {
- nest++;
- }
- case ']':
- if (tryRead("]>"))
- {
- nest--;
- }
- }
- }
- expandPE = true;
- }
- else
- {
- error("conditional section must begin with INCLUDE or IGNORE");
- }
- }
-
- private void parseCharRef()
+ {
+ skipWhitespace ();
+ if (tryRead ("INCLUDE")) {
+ skipWhitespace ();
+ require ('[');
+ // VC: Proper Conditional Section/PE Nesting
+ if (readBuffer != saved)
+ handler.verror ("Illegal Conditional Section/PE nesting");
+ skipWhitespace ();
+ while (!tryRead ("]]>")) {
+ parseMarkupdecl ();
+ skipWhitespace ();
+ }
+ } else if (tryRead ("IGNORE")) {
+ skipWhitespace ();
+ require ('[');
+ // VC: Proper Conditional Section/PE Nesting
+ if (readBuffer != saved)
+ handler.verror ("Illegal Conditional Section/PE nesting");
+ int nesting = 1;
+ char c;
+ expandPE = false;
+ for (int nest = 1; nest > 0;) {
+ c = readCh ();
+ switch (c) {
+ case '<':
+ if (tryRead ("![")) {
+ nest++;
+ }
+ case ']':
+ if (tryRead ("]>")) {
+ nest--;
+ }
+ }
+ }
+ expandPE = true;
+ } else {
+ error ("conditional section must begin with INCLUDE or IGNORE");
+ }
+ }
+
+ private void parseCharRef ()
throws SAXException, IOException
{
- parseCharRef(true /* do flushDataBuffer by default */);
+ parseCharRef (true /* do flushDataBuffer by default */);
}
/**
* </pre>
* <p>NOTE: the '&#' has already been read.
*/
- private void tryReadCharRef()
- throws SAXException, IOException
+ private void tryReadCharRef ()
+ throws SAXException, IOException
{
- int value = 0;
- char c;
-
- if (tryRead('x'))
- {
+ int value = 0;
+ char c;
+
+ if (tryRead ('x')) {
loop1:
- while (true)
- {
- c = readCh();
- if (c == ';')
- {
- break loop1;
- }
- else
- {
- int n = Character.digit(c, 16);
- if (n == -1)
- {
- error("illegal character in character reference", c, null);
- break loop1;
- }
- value *= 16;
- value += n;
- }
- }
- }
- else
- {
+ while (true) {
+ c = readCh ();
+ int n;
+ switch (c) {
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ n = c - '0';
+ break;
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ n = (c - 'a') + 10;
+ break;
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ n = (c - 'A') + 10;
+ break;
+ case ';':
+ break loop1;
+ default:
+ error ("illegal character in character reference", c, null);
+ break loop1;
+ }
+ value *= 16;
+ value += n;
+ }
+ } else {
loop2:
- while (true)
- {
- c = readCh();
- if (c == ';')
- {
- break loop2;
- }
- else
- {
- int n = Character.digit(c, 10);
- if (n == -1)
- {
- error("illegal character in character reference", c, null);
- break loop2;
- }
- value *= 10;
- value += n;
- }
- }
- }
-
- // check for character refs being legal XML
- if ((value < 0x0020
- && ! (value == '\n' || value == '\t' || value == '\r'))
- || (value >= 0xD800 && value <= 0xDFFF)
- || value == 0xFFFE || value == 0xFFFF
- || value > 0x0010ffff)
- {
- error("illegal XML character reference U+"
- + Integer.toHexString(value));
- }
-
- // Check for surrogates: 00000000 0000xxxx yyyyyyyy zzzzzzzz
- // (1101|10xx|xxyy|yyyy + 1101|11yy|zzzz|zzzz:
- if (value > 0x0010ffff)
- {
- // too big for surrogate
- error("character reference " + value + " is too large for UTF-16",
- new Integer(value).toString(), null);
- }
-
+ while (true) {
+ c = readCh ();
+ switch (c) {
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ value *= 10;
+ value += c - '0';
+ break;
+ case ';':
+ break loop2;
+ default:
+ error ("illegal character in character reference", c, null);
+ break loop2;
+ }
+ }
+ }
+
+ // check for character refs being legal XML
+ if ((value < 0x0020
+ && ! (value == '\n' || value == '\t' || value == '\r'))
+ || (value >= 0xD800 && value <= 0xDFFF)
+ || value == 0xFFFE || value == 0xFFFF
+ || value > 0x0010ffff)
+ error ("illegal XML character reference U+"
+ + Integer.toHexString (value));
+
+ // Check for surrogates: 00000000 0000xxxx yyyyyyyy zzzzzzzz
+ // (1101|10xx|xxyy|yyyy + 1101|11yy|zzzz|zzzz:
+ if (value > 0x0010ffff) {
+ // too big for surrogate
+ error ("character reference " + value + " is too large for UTF-16",
+ new Integer (value).toString (), null);
+ }
+
}
- /**
- * Read and interpret a character reference.
- * <pre>
- * [66] CharRef ::= '&#' [0-9]+ ';' | '&#x' [0-9a-fA-F]+ ';'
- * </pre>
- * <p>NOTE: the '&#' has already been read.
- */
- private void parseCharRef(boolean doFlush)
+ /**
+ * Read and interpret a character reference.
+ * [66] CharRef ::= '&#' [0-9]+ ';' | '&#x' [0-9a-fA-F]+ ';'
+ * </pre>
+
* <p>NOTE: the '&#' has already been read.
+ */
+ private void parseCharRef (boolean doFlush)
throws SAXException, IOException
- {
- int value = 0;
- char c;
-
- if (tryRead('x'))
- {
+ {
+ int value = 0;
+ char c;
+
+ if (tryRead ('x')) {
loop1:
- while (true)
- {
- c = readCh();
- if (c == ';')
- {
- break loop1;
- }
- else
- {
- int n = Character.digit(c, 16);
- if (n == -1)
- {
- error("illegal character in character reference", c, null);
- break loop1;
- }
- value *= 16;
- value += n;
- }
- }
- }
- else
- {
+ while (true) {
+ c = readCh ();
+ int n;
+ switch (c) {
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ n = c - '0';
+ break;
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ n = (c - 'a') + 10;
+ break;
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ n = (c - 'A') + 10;
+ break;
+ case ';':
+ break loop1;
+ default:
+ error ("illegal character in character reference", c, null);
+ break loop1;
+ }
+ value *= 16;
+ value += n;
+ }
+ } else {
loop2:
- while (true)
- {
- c = readCh();
- if (c == ';')
- {
- break loop2;
- }
- else
- {
- int n = Character.digit(c, 10);
- if (n == -1)
- {
- error("illegal character in character reference", c, null);
- break loop2;
- }
- value *= 10;
- value += c - '0';
- }
- }
- }
-
- // check for character refs being legal XML
- if ((value < 0x0020
- && ! (value == '\n' || value == '\t' || value == '\r'))
- || (value >= 0xD800 && value <= 0xDFFF)
- || value == 0xFFFE || value == 0xFFFF
- || value > 0x0010ffff)
- {
- error("illegal XML character reference U+"
- + Integer.toHexString(value));
- }
-
- // Check for surrogates: 00000000 0000xxxx yyyyyyyy zzzzzzzz
- // (1101|10xx|xxyy|yyyy + 1101|11yy|zzzz|zzzz:
- if (value <= 0x0000ffff)
- {
- // no surrogates needed
- dataBufferAppend((char) value);
- }
- else if (value <= 0x0010ffff)
- {
- value -= 0x10000;
- // > 16 bits, surrogate needed
- dataBufferAppend((char) (0xd800 | (value >> 10)));
- dataBufferAppend((char) (0xdc00 | (value & 0x0003ff)));
- }
- else
- {
- // too big for surrogate
- error("character reference " + value + " is too large for UTF-16",
- new Integer(value).toString(), null);
- }
- if (doFlush)
- {
- dataBufferFlush();
- }
- }
-
- /**
- * Parse and expand an entity reference.
- * <pre>
- * [68] EntityRef ::= '&' Name ';'
- * </pre>
- * <p>NOTE: the '&' has already been read.
- * @param externalAllowed External entities are allowed here.
- */
- private void parseEntityRef(boolean externalAllowed)
+ while (true) {
+ c = readCh ();
+ switch (c) {
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ value *= 10;
+ value += c - '0';
+ break;
+ case ';':
+ break loop2;
+ default:
+ error ("illegal character in character reference", c, null);
+ break loop2;
+ }
+ }
+ }
+
+ // check for character refs being legal XML
+ if ((value < 0x0020
+ && ! (value == '\n' || value == '\t' || value == '\r'))
+ || (value >= 0xD800 && value <= 0xDFFF)
+ || value == 0xFFFE || value == 0xFFFF
+ || value > 0x0010ffff)
+ error ("illegal XML character reference U+"
+ + Integer.toHexString (value));
+
+ // Check for surrogates: 00000000 0000xxxx yyyyyyyy zzzzzzzz
+ // (1101|10xx|xxyy|yyyy + 1101|11yy|zzzz|zzzz:
+ if (value <= 0x0000ffff) {
+ // no surrogates needed
+ dataBufferAppend ((char) value);
+ } else if (value <= 0x0010ffff) {
+ value -= 0x10000;
+ // > 16 bits, surrogate needed
+ dataBufferAppend ((char) (0xd800 | (value >> 10)));
+ dataBufferAppend ((char) (0xdc00 | (value & 0x0003ff)));
+ } else {
+ // too big for surrogate
+ error ("character reference " + value + " is too large for UTF-16",
+ new Integer (value).toString (), null);
+ }
+ if (doFlush) dataBufferFlush ();
+ }
+
+
+ /**
+ * Parse and expand an entity reference.
+ * <pre>
+ * [68] EntityRef ::= '&' Name ';'
+ * </pre>
+ * <p>NOTE: the '&' has already been read.
+ * @param externalAllowed External entities are allowed here.
+ */
+ private void parseEntityRef (boolean externalAllowed)
throws SAXException, IOException
- {
- String name;
-
- name = readNmtoken(true);
- require(';');
- switch (getEntityType(name))
- {
- case ENTITY_UNDECLARED:
- // NOTE: XML REC describes amazingly convoluted handling for
- // this case. Nothing as meaningful as being a WFness error
- // unless the processor might _legitimately_ not have seen a
- // declaration ... which is what this implements.
- String message;
-
- message = "reference to undeclared general entity " + name;
- if (skippedPE && !docIsStandalone)
- {
- handler.verror(message);
- // we don't know this entity, and it might be external...
- if (externalAllowed)
- {
- handler.skippedEntity(name);
- }
- }
- else
- {
- error(message);
- }
- break;
- case ENTITY_INTERNAL:
- pushString(name, getEntityValue(name));
-
- //workaround for possible input pop before marking
- //the buffer reading position
- char t = readCh();
- unread(t);
- int bufferPosMark = readBufferPos;
-
- int end = readBufferPos + getEntityValue(name).length();
- for (int k = readBufferPos; k < end; k++)
- {
- t = readCh();
- if (t == '&')
- {
- t = readCh();
- if (t == '#')
- {
- //try to match a character ref
- tryReadCharRef();
-
- //everything has been read
- if (readBufferPos >= end)
- {
- break;
- }
- k = readBufferPos;
- continue;
- }
- else if (Character.isLetter(t))
- {
- //looks like an entity ref
- unread(t);
- readNmtoken(true);
- require(';');
-
- //everything has been read
- if (readBufferPos >= end)
- {
- break;
- }
- k = readBufferPos;
- continue;
- }
- error(" malformed entity reference");
- }
-
- }
- readBufferPos = bufferPosMark;
- break;
- case ENTITY_TEXT:
- if (externalAllowed)
- {
- pushURL(false, name, getEntityIds(name),
- null, null, null, true);
- }
- else
- {
- error("reference to external entity in attribute value.",
- name, null);
- }
- break;
- case ENTITY_NDATA:
- if (externalAllowed)
- {
- error("unparsed entity reference in content", name, null);
- }
- else
- {
- error("reference to external entity in attribute value.",
- name, null);
+ {
+ String name;
+
+ name = readNmtoken (true);
+ require (';');
+ switch (getEntityType (name)) {
+ case ENTITY_UNDECLARED:
+ // NOTE: XML REC describes amazingly convoluted handling for
+ // this case. Nothing as meaningful as being a WFness error
+ // unless the processor might _legitimately_ not have seen a
+ // declaration ... which is what this implements.
+ String message;
+
+ message = "reference to undeclared general entity " + name;
+ if (skippedPE && !docIsStandalone) {
+ handler.verror (message);
+ // we don't know this entity, and it might be external...
+ if (externalAllowed)
+ handler.skippedEntity (name);
+ } else
+ error (message);
+ break;
+ case ENTITY_INTERNAL:
+ pushString (name, getEntityValue (name));
+
+ //workaround for possible input pop before marking
+ //the buffer reading position
+ char t = readCh ();
+ unread (t);
+ int bufferPosMark = readBufferPos;
+
+ int end = readBufferPos + getEntityValue (name).length();
+ for(int k = readBufferPos; k < end; k++){
+ t = readCh ();
+ if (t == '&'){
+ t = readCh ();
+ if (t == '#'){
+ //try to match a character ref
+ tryReadCharRef ();
+
+ //everything has been read
+ if (readBufferPos >= end)
+ break;
+ k = readBufferPos;
+ continue;
+ }
+ else if (Character.isLetter(t)){
+ //looks like an entity ref
+ unread (t);
+ readNmtoken (true);
+ require (';');
+
+ //everything has been read
+ if (readBufferPos >= end)
+ break;
+ k = readBufferPos;
+ continue;
+ }
+ error(" malformed entity reference");
+ }
+
}
- break;
- default:
- throw new RuntimeException();
- }
- }
-
- /**
- * Parse and expand a parameter entity reference.
- * <pre>
- * [69] PEReference ::= '%' Name ';'
- * </pre>
- * <p>NOTE: the '%' has already been read.
- */
- private void parsePEReference()
+ readBufferPos = bufferPosMark;
+ break;
+ case ENTITY_TEXT:
+ if (externalAllowed) {
+ pushURL (false, name, getEntityIds (name),
+ null, null, null, true);
+ } else {
+ error ("reference to external entity in attribute value.",
+ name, null);
+ }
+ break;
+ case ENTITY_NDATA:
+ if (externalAllowed) {
+ error ("unparsed entity reference in content", name, null);
+ } else {
+ error ("reference to external entity in attribute value.",
+ name, null);
+ }
+ break;
+ default:
+ throw new RuntimeException ();
+ }
+ }
+
+
+ /**
+ * Parse and expand a parameter entity reference.
+ * <pre>
+ * [69] PEReference ::= '%' Name ';'
+ * </pre>
+ * <p>NOTE: the '%' has already been read.
+ */
+ private void parsePEReference ()
throws SAXException, IOException
- {
- String name;
-
- name = "%" + readNmtoken(true);
- require(';');
- switch (getEntityType(name))
- {
- case ENTITY_UNDECLARED:
- // VC: Entity Declared
- handler.verror("reference to undeclared parameter entity " + name);
-
- // we should disable handling of all subsequent declarations
- // unless this is a standalone document (info discarded)
- break;
- case ENTITY_INTERNAL:
- if (inLiteral)
- {
- pushString(name, getEntityValue(name));
- }
- else
- {
- pushString(name, ' ' + getEntityValue(name) + ' ');
- }
- break;
- case ENTITY_TEXT:
- if (!inLiteral)
- {
- pushString(null, " ");
- }
- pushURL(true, name, getEntityIds(name), null, null, null, true);
- if (!inLiteral)
- {
- pushString(null, " ");
- }
- break;
- }
- }
-
- /**
- * Parse an entity declaration.
- * <pre>
- * [70] EntityDecl ::= GEDecl | PEDecl
- * [71] GEDecl ::= '<!ENTITY' S Name S EntityDef S? '>'
- * [72] PEDecl ::= '<!ENTITY' S '%' S Name S PEDef S? '>'
- * [73] EntityDef ::= EntityValue | (ExternalID NDataDecl?)
- * [74] PEDef ::= EntityValue | ExternalID
- * [75] ExternalID ::= 'SYSTEM' S SystemLiteral
- * | 'PUBLIC' S PubidLiteral S SystemLiteral
- * [76] NDataDecl ::= S 'NDATA' S Name
- * </pre>
- * <p>NOTE: the '<!ENTITY' has already been read.
- */
- private void parseEntityDecl()
+ {
+ String name;
+
+ name = "%" + readNmtoken (true);
+ require (';');
+ switch (getEntityType (name)) {
+ case ENTITY_UNDECLARED:
+ // VC: Entity Declared
+ handler.verror ("reference to undeclared parameter entity " + name);
+
+ // we should disable handling of all subsequent declarations
+ // unless this is a standalone document (info discarded)
+ break;
+ case ENTITY_INTERNAL:
+ if (inLiteral)
+ pushString (name, getEntityValue (name));
+ else
+ pushString (name, ' ' + getEntityValue (name) + ' ');
+ break;
+ case ENTITY_TEXT:
+ if (!inLiteral)
+ pushString (null, " ");
+ pushURL (true, name, getEntityIds (name), null, null, null, true);
+ if (!inLiteral)
+ pushString (null, " ");
+ break;
+ }
+ }
+
+ /**
+ * Parse an entity declaration.
+ * <pre>
+ * [70] EntityDecl ::= GEDecl | PEDecl
+ * [71] GEDecl ::= '<!ENTITY' S Name S EntityDef S? '>'
+ * [72] PEDecl ::= '<!ENTITY' S '%' S Name S PEDef S? '>'
+ * [73] EntityDef ::= EntityValue | (ExternalID NDataDecl?)
+ * [74] PEDef ::= EntityValue | ExternalID
+ * [75] ExternalID ::= 'SYSTEM' S SystemLiteral
+ * | 'PUBLIC' S PubidLiteral S SystemLiteral
+ * [76] NDataDecl ::= S 'NDATA' S Name
+ * </pre>
+ * <p>NOTE: the '<!ENTITY' has already been read.
+ */
+ private void parseEntityDecl ()
throws Exception
- {
- boolean peFlag = false;
- int flags = 0;
-
- // Check for a parameter entity.
- expandPE = false;
- requireWhitespace();
- if (tryRead('%'))
- {
- peFlag = true;
- requireWhitespace();
- }
- expandPE = true;
-
- // Read the entity name, and prepend
- // '%' if necessary.
- String name = readNmtoken(true);
- //NE08
- if (name.indexOf(':') >= 0)
- {
- error("Illegal character(':') in entity name ", name, null);
- }
- if (peFlag)
- {
- name = "%" + name;
- }
+ {
+ boolean peFlag = false;
+ int flags = 0;
+
+ // Check for a parameter entity.
+ expandPE = false;
+ requireWhitespace ();
+ if (tryRead ('%')) {
+ peFlag = true;
+ requireWhitespace ();
+ }
+ expandPE = true;
+
+ // Read the entity name, and prepend
+ // '%' if necessary.
+ String name = readNmtoken (true);
+ //NE08
+ if (name.indexOf(':') >= 0)
+ error ("Illegal character(':') in entity name ", name, null);
+ if (peFlag) {
+ name = "%" + name;
+ }
+
+ // Read the entity value.
+ requireWhitespace ();
+ char c = readCh ();
+ unread (c);
+ if (c == '"' || c == '\'') {
+ // Internal entity ... replacement text has expanded refs
+ // to characters and PEs, but not to general entities
+ String value = readLiteral (flags);
+ setInternalEntity (name, value);
+ } else {
+ // Read the external IDs
+ String ids [] = readExternalIds (false, false);
+
+ // Check for NDATA declaration.
+ boolean white = tryWhitespace ();
+ if (!peFlag && tryRead ("NDATA")) {
+ if (!white)
+ error ("whitespace required before NDATA");
+ requireWhitespace ();
+ String notationName = readNmtoken (true);
+ if (!skippedPE) {
+ setExternalEntity (name, ENTITY_NDATA, ids, notationName);
+ handler.unparsedEntityDecl (name, ids, notationName);
+ }
+ } else if (!skippedPE) {
+ setExternalEntity (name, ENTITY_TEXT, ids, null);
+ handler.getDeclHandler ()
+ .externalEntityDecl (name, ids [0],
+ handler.resolveURIs ()
+ // FIXME: ASSUMES not skipped
+ // "false" forces error on bad URI
+ ? handler.absolutize (ids [2], ids [1], false)
+ : ids [1]);
+ }
+ }
+
+ // Finish the declaration.
+ skipWhitespace ();
+ require ('>');
+ }
- // Read the entity value.
- requireWhitespace();
- char c = readCh();
- unread (c);
- if (c == '"' || c == '\'')
- {
- // Internal entity ... replacement text has expanded refs
- // to characters and PEs, but not to general entities
- String value = readLiteral(flags);
- setInternalEntity(name, value);
- }
- else
- {
- // Read the external IDs
- ExternalIdentifiers ids = readExternalIds(false, false);
-
- // Check for NDATA declaration.
- boolean white = tryWhitespace();
- if (!peFlag && tryRead("NDATA"))
- {
- if (!white)
- {
- error("whitespace required before NDATA");
- }
- requireWhitespace();
- String notationName = readNmtoken(true);
- if (!skippedPE)
- {
- setExternalEntity(name, ENTITY_NDATA, ids, notationName);
- handler.unparsedEntityDecl(name, ids.publicId, ids.systemId,
- ids.baseUri, notationName);
- }
- }
- else if (!skippedPE)
- {
- setExternalEntity(name, ENTITY_TEXT, ids, null);
- handler.getDeclHandler()
- .externalEntityDecl(name, ids.publicId,
- handler.resolveURIs()
- // FIXME: ASSUMES not skipped
- // "false" forces error on bad URI
- ? handler.absolutize(ids.baseUri,
- ids.systemId,
- false)
- : ids.systemId);
- }
- }
-
- // Finish the declaration.
- skipWhitespace();
- require('>');
- }
- /**
- * Parse a notation declaration.
- * <pre>
- * [82] NotationDecl ::= '<!NOTATION' S Name S
- * (ExternalID | PublicID) S? '>'
- * [83] PublicID ::= 'PUBLIC' S PubidLiteral
- * </pre>
- * <P>NOTE: the '<!NOTATION' has already been read.
- */
- private void parseNotationDecl()
+ /**
+ * Parse a notation declaration.
+ * [82] NotationDecl ::= '<!NOTATION' S Name S
+ * (ExternalID | PublicID) S? '>'
+ * [83] PublicID ::= 'PUBLIC' S PubidLiteral
+ * </pre>
+
* <P>NOTE: the '<!NOTATION' has already been read.
+ */
+ private void parseNotationDecl ()
throws Exception
- {
- String nname;
- ExternalIdentifiers ids;
-
- requireWhitespace();
- nname = readNmtoken(true);
- //NE08
- if (nname.indexOf(':') >= 0)
- {
- error("Illegal character(':') in notation name ", nname, null);
- }
- requireWhitespace();
+ {
+ String nname, ids[];
- // Read the external identifiers.
- ids = readExternalIds(true, false);
- // Register the notation.
- setNotation(nname, ids);
-
- skipWhitespace();
- require('>');
- }
-
- /**
- * Parse character data.
- * <pre>
- * [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*)
- * </pre>
- */
- private void parseCharData()
+ requireWhitespace ();
+ nname = readNmtoken (true);
+ //NE08
+ if (nname.indexOf(':') >= 0)
+ error ("Illegal character(':') in notation name ", nname, null);
+ requireWhitespace ();
+
+ // Read the external identifiers.
+ ids = readExternalIds (true, false);
+
+ // Register the notation.
+ setNotation (nname, ids);
+
+ skipWhitespace ();
+ require ('>');
+ }
+
+
+ /**
+ * Parse character data.
+ * <pre>
+ * [14] CharData ::= [^<&]* - ([^<&]* ']]>' [^<&]*)
+ * </pre>
+ */
+ private void parseCharData ()
throws Exception
- {
- char c;
- int state = 0;
- boolean pureWhite = false;
+ {
+ char c;
+ int state = 0;
+ boolean pureWhite = false;
- // assert (dataBufferPos == 0);
-
- // are we expecting pure whitespace? it might be dirty...
- if ((currentElementContent == CONTENT_ELEMENTS) && !isDirtyCurrentElement)
- {
- pureWhite = true;
- }
+ // assert (dataBufferPos == 0);
+
+ // are we expecting pure whitespace? it might be dirty...
+ if ((currentElementContent == CONTENT_ELEMENTS) && !isDirtyCurrentElement)
+ pureWhite = true;
+
+ // always report right out of readBuffer
+ // to minimize (pointless) buffer copies
+ while (true) {
+ int lineAugment = 0;
+ int columnAugment = 0;
+ int i;
- // always report right out of readBuffer
- // to minimize (pointless) buffer copies
- while (true)
- {
- int lineAugment = 0;
- int columnAugment = 0;
- int i;
-
loop:
- for (i = readBufferPos; i < readBufferLength; i++)
- {
- switch (c = readBuffer[i])
- {
- case '\n':
- lineAugment++;
- columnAugment = 0;
- // pureWhite unmodified
- break;
- case '\r': // should not happen!!
- case '\t':
- case ' ':
- // pureWhite unmodified
- columnAugment++;
- break;
- case '&':
- case '<':
- columnAugment++;
- // pureWhite unmodified
- // CLEAN end of text sequence
- state = 1;
- break loop;
- case ']':
- // that's not a whitespace char, and
- // can not terminate pure whitespace either
- pureWhite = false;
- if ((i + 2) < readBufferLength)
- {
- if (readBuffer [i + 1] == ']'
- && readBuffer [i + 2] == '>')
- {
- // ERROR end of text sequence
- state = 2;
- break loop;
- }
- }
- else
- {
- // FIXME missing two end-of-buffer cases
- }
- columnAugment++;
- break;
- default:
- if ((c < 0x0020 || c > 0xFFFD)
- || ((c >= 0x007f) && (c <= 0x009f) && (c != 0x0085)
- && xmlVersion == XML_11))
- {
- error("illegal XML character U+"
- + Integer.toHexString(c));
- }
- // that's not a whitespace char
- pureWhite = false;
- columnAugment++;
- }
- }
-
- // report text thus far
- if (lineAugment > 0)
- {
- line += lineAugment;
- column = columnAugment;
- }
- else
- {
- column += columnAugment;
- }
-
- // report characters/whitspace
- int length = i - readBufferPos;
-
- if (length != 0)
- {
- if (pureWhite)
- {
- handler.ignorableWhitespace(readBuffer,
- readBufferPos, length);
- }
- else
- {
- handler.charData(readBuffer, readBufferPos, length);
- }
- readBufferPos = i;
- }
-
- if (state != 0)
- {
- break;
- }
-
- // fill next buffer from this entity, or
- // pop stack and continue with previous entity
- unread(readCh());
- }
- if (!pureWhite)
- {
- isDirtyCurrentElement = true;
- }
- // finish, maybe with error
- if (state != 1) // finish, no error
- {
- error("character data may not contain ']]>'");
- }
- }
-
- //////////////////////////////////////////////////////////////////////
- // High-level reading and scanning methods.
- //////////////////////////////////////////////////////////////////////
-
- /**
- * Require whitespace characters.
- */
- private void requireWhitespace()
+ for (i = readBufferPos; i < readBufferLength; i++) {
+ switch (c = readBuffer [i]) {
+ case '\n':
+ lineAugment++;
+ columnAugment = 0;
+ // pureWhite unmodified
+ break;
+ case '\r': // should not happen!!
+ case '\t':
+ case ' ':
+ // pureWhite unmodified
+ columnAugment++;
+ break;
+ case '&':
+ case '<':
+ columnAugment++;
+ // pureWhite unmodified
+ // CLEAN end of text sequence
+ state = 1;
+ break loop;
+ case ']':
+ // that's not a whitespace char, and
+ // can not terminate pure whitespace either
+ pureWhite = false;
+ if ((i + 2) < readBufferLength) {
+ if (readBuffer [i + 1] == ']'
+ && readBuffer [i + 2] == '>') {
+ // ERROR end of text sequence
+ state = 2;
+ break loop;
+ }
+ } else {
+ // FIXME missing two end-of-buffer cases
+ }
+ columnAugment++;
+ break;
+ default:
+ if ((c < 0x0020 || c > 0xFFFD)
+ || ((c >= 0x007f) && (c <= 0x009f) && (c != 0x0085)
+ && xmlVersion == XML_11))
+ error ("illegal XML character U+"
+ + Integer.toHexString (c));
+ // that's not a whitespace char
+ pureWhite = false;
+ columnAugment++;
+ }
+ }
+
+ // report text thus far
+ if (lineAugment > 0) {
+ line += lineAugment;
+ column = columnAugment;
+ } else {
+ column += columnAugment;
+ }
+
+ // report characters/whitspace
+ int length = i - readBufferPos;
+
+ if (length != 0) {
+ if (pureWhite)
+ handler.ignorableWhitespace (readBuffer,
+ readBufferPos, length);
+ else
+ handler.charData (readBuffer, readBufferPos, length);
+ readBufferPos = i;
+ }
+
+ if (state != 0)
+ break;
+
+ // fill next buffer from this entity, or
+ // pop stack and continue with previous entity
+ unread (readCh ());
+ }
+ if (!pureWhite)
+ isDirtyCurrentElement = true;
+ // finish, maybe with error
+ if (state != 1) // finish, no error
+ error ("character data may not contain ']]>'");
+ }
+
+
+ //////////////////////////////////////////////////////////////////////
+ // High-level reading and scanning methods.
+ //////////////////////////////////////////////////////////////////////
+
+ /**
+ * Require whitespace characters.
+ */
+ private void requireWhitespace ()
throws SAXException, IOException
- {
- char c = readCh();
- if (isWhitespace(c))
- {
- skipWhitespace();
- }
- else
- {
- error("whitespace required", c, null);
- }
- }
+ {
+ char c = readCh ();
+ if (isWhitespace (c)) {
+ skipWhitespace ();
+ } else {
+ error ("whitespace required", c, null);
+ }
+ }
- /**
- * Skip whitespace characters.
- * <pre>
- * [3] S ::= (#x20 | #x9 | #xd | #xa)+
- * </pre>
- */
- private void skipWhitespace()
+
+ /**
+ * Skip whitespace characters.
+ * <pre>
+ * [3] S ::= (#x20 | #x9 | #xd | #xa)+
+ * </pre>
+ */
+ private void skipWhitespace ()
throws SAXException, IOException
- {
- // Start with a little cheat. Most of
- // the time, the white space will fall
- // within the current read buffer; if
- // not, then fall through.
- if (USE_CHEATS)
- {
- int lineAugment = 0;
- int columnAugment = 0;
-
+ {
+ // Start with a little cheat. Most of
+ // the time, the white space will fall
+ // within the current read buffer; if
+ // not, then fall through.
+ if (USE_CHEATS) {
+ int lineAugment = 0;
+ int columnAugment = 0;
+
loop:
- for (int i = readBufferPos; i < readBufferLength; i++)
- {
- switch (readBuffer[i])
- {
- case ' ':
- case '\t':
- case '\r':
- columnAugment++;
- break;
- case '\n':
- lineAugment++;
- columnAugment = 0;
- break;
- case '%':
- if (expandPE)
- {
- break loop;
- }
- // else fall through...
- default:
- readBufferPos = i;
- if (lineAugment > 0)
- {
- line += lineAugment;
- column = columnAugment;
- }
- else
- {
- column += columnAugment;
- }
- return;
- }
- }
- }
-
- // OK, do it the slow way.
- char c = readCh ();
- while (isWhitespace(c))
- {
- c = readCh();
- }
- unread(c);
- }
-
- /**
- * Read a name or (when parsing an enumeration) name token.
- * <pre>
- * [5] Name ::= (Letter | '_' | ':') (NameChar)*
- * [7] Nmtoken ::= (NameChar)+
- * </pre>
- */
- private String readNmtoken(boolean isName)
+ for (int i = readBufferPos; i < readBufferLength; i++) {
+ switch (readBuffer [i]) {
+ case ' ':
+ case '\t':
+ case '\r':
+ columnAugment++;
+ break;
+ case '\n':
+ lineAugment++;
+ columnAugment = 0;
+ break;
+ case '%':
+ if (expandPE)
+ break loop;
+ // else fall through...
+ default:
+ readBufferPos = i;
+ if (lineAugment > 0) {
+ line += lineAugment;
+ column = columnAugment;
+ } else {
+ column += columnAugment;
+ }
+ return;
+ }
+ }
+ }
+
+ // OK, do it the slow way.
+ char c = readCh ();
+ while (isWhitespace (c)) {
+ c = readCh ();
+ }
+ unread (c);
+ }
+
+
+ /**
+ * Read a name or (when parsing an enumeration) name token.
+ * <pre>
+ * [5] Name ::= (Letter | '_' | ':') (NameChar)*
+ * [7] Nmtoken ::= (NameChar)+
+ * </pre>
+ */
+ private String readNmtoken (boolean isName)
throws SAXException, IOException
- {
- char c;
-
- if (USE_CHEATS)
- {
-loop:
- for (int i = readBufferPos; i < readBufferLength; i++)
- {
- c = readBuffer[i];
- switch (c)
- {
- case '%':
- if (expandPE)
- {
- break loop;
- }
- // else fall through...
-
- // What may legitimately come AFTER a name/nmtoken?
- case '<': case '>': case '&':
- case ',': case '|': case '*': case '+': case '?':
- case ')':
- case '=':
- case '\'': case '"':
- case '[':
- case ' ': case '\t': case '\r': case '\n':
- case ';':
- case '/':
- int start = readBufferPos;
- if (i == start)
- {
- error("name expected", readBuffer[i], null);
- }
- readBufferPos = i;
- return intern(readBuffer, start, i - start);
-
- default:
- // FIXME ... per IBM's OASIS test submission, these:
- // ? U+06dd
- // Combining U+309B
- //these switches are kind of ugly but at least we won't
- //have to go over the whole lits for each char
- if (isName && i == readBufferPos)
- {
- char c2 = (char) (c & 0x00f0);
- switch (c & 0xff00)
- {
- //starting with 01
- case 0x0100:
- switch (c2)
- {
- case 0x0030:
- if (c == 0x0132 || c == 0x0133 || c == 0x013f)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- case 0x0040:
- if (c == 0x0140 || c == 0x0149)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- case 0x00c0:
- if (c == 0x01c4 || c == 0x01cc)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- case 0x00f0:
- if (c == 0x01f1 || c == 0x01f3)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- case 0x00b0:
- if (c == 0x01f1 || c == 0x01f3)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- default:
- if (c == 0x017f)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- }
-
- break;
- //starting with 11
- case 0x1100:
- switch (c2)
- {
- case 0x0000:
- if (c == 0x1104 || c == 0x1108 ||
- c == 0x110a || c == 0x110d)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- case 0x0030:
- if (c == 0x113b || c == 0x113f)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- case 0x0040:
- if (c == 0x1141 || c == 0x114d
- || c == 0x114f )
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- case 0x0050:
- if (c == 0x1151 || c == 0x1156)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- case 0x0060:
- if (c == 0x1162 || c == 0x1164
- || c == 0x1166 || c == 0x116b
- || c == 0x116f)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- case 0x00b0:
- if (c == 0x11b6 || c == 0x11b9
- || c == 0x11bb || c == 0x116f)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- break;
- default:
- if (c == 0x1174 || c == 0x119f
- || c == 0x11ac || c == 0x11c3
- || c == 0x11f1)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- }
- break;
- default:
- if (c == 0x0e46 || c == 0x1011
- || c == 0x212f || c == 0x0587
- || c == 0x0230 )
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- }
- }
- // punt on exact tests from Appendix A; approximate
- // them using the Unicode ID start/part rules
- if (i == readBufferPos && isName)
- {
- if (!Character.isUnicodeIdentifierStart(c)
- && c != ':' && c != '_')
- {
- error("Not a name start character, U+"
- + Integer.toHexString(c));
- }
- }
- else if (!Character.isUnicodeIdentifierPart(c)
- && c != '-' && c != ':' && c != '_' && c != '.'
- && !isExtender(c))
- {
- error("Not a name character, U+"
- + Integer.toHexString(c));
- }
- }
- }
- }
-
- nameBufferPos = 0;
+ {
+ char c;
- // Read the first character.
+ if (USE_CHEATS) {
loop:
- while (true)
- {
- c = readCh();
- switch (c)
- {
- case '%':
- case '<': case '>': case '&':
- case ',': case '|': case '*': case '+': case '?':
- case ')':
- case '=':
- case '\'': case '"':
- case '[':
- case ' ': case '\t': case '\n': case '\r':
- case ';':
- case '/':
- unread(c);
- if (nameBufferPos == 0)
- {
- error ("name expected");
- }
- // punt on exact tests from Appendix A, but approximate them
- if (isName
- && !Character.isUnicodeIdentifierStart(nameBuffer[0])
- && ":_".indexOf(nameBuffer[0]) == -1)
- {
- error("Not a name start character, U+"
- + Integer.toHexString(nameBuffer[0]));
- }
- String s = intern(nameBuffer, 0, nameBufferPos);
- nameBufferPos = 0;
- return s;
- default:
- // punt on exact tests from Appendix A, but approximate them
-
- if ((nameBufferPos != 0 || !isName)
- && !Character.isUnicodeIdentifierPart(c)
- && ":-_.".indexOf(c) == -1
- && !isExtender(c))
- {
- error("Not a name character, U+"
- + Integer.toHexString(c));
- }
- if (nameBufferPos >= nameBuffer.length)
- {
- nameBuffer =
- (char[]) extendArray(nameBuffer,
- nameBuffer.length, nameBufferPos);
- }
- nameBuffer[nameBufferPos++] = c;
- }
- }
- }
-
- private static boolean isExtender(char c)
- {
- // [88] Extender ::= ...
- return c == 0x00b7 || c == 0x02d0 || c == 0x02d1 || c == 0x0387
- || c == 0x0640 || c == 0x0e46 || c == 0x0ec6 || c == 0x3005
- || (c >= 0x3031 && c <= 0x3035)
- || (c >= 0x309d && c <= 0x309e)
- || (c >= 0x30fc && c <= 0x30fe);
- }
+ for (int i = readBufferPos; i < readBufferLength; i++) {
+ c = readBuffer [i];
+ switch (c) {
+ case '%':
+ if (expandPE)
+ break loop;
+ // else fall through...
+
+ // What may legitimately come AFTER a name/nmtoken?
+ case '<': case '>': case '&':
+ case ',': case '|': case '*': case '+': case '?':
+ case ')':
+ case '=':
+ case '\'': case '"':
+ case '[':
+ case ' ': case '\t': case '\r': case '\n':
+ case ';':
+ case '/':
+ int start = readBufferPos;
+ if (i == start)
+ error ("name expected", readBuffer [i], null);
+ readBufferPos = i;
+ return intern (readBuffer, start, i - start);
+
+ default:
+// FIXME ... per IBM's OASIS test submission, these:
+// ? U+06dd
+// Combining U+309B
+ //these switches are kind of ugly but at least we won't
+ //have to go over the whole lits for each char
+ if (isName && i == readBufferPos){
+ char c2 = (char) (c & 0x00f0);
+ switch (c & 0xff00){
+ //starting with 01
+ case 0x0100:
+ switch (c2){
+ case 0x0030:
+ if (c == 0x0132 || c == 0x0133 || c == 0x013f)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ case 0x0040:
+ if (c == 0x0140 || c == 0x0149)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ case 0x00c0:
+ if (c == 0x01c4 || c == 0x01cc)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ case 0x00f0:
+ if (c == 0x01f1 || c == 0x01f3)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ case 0x00b0:
+ if (c == 0x01f1 || c == 0x01f3)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ default:
+ if (c == 0x017f)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ }
+
+ break;
+ //starting with 11
+ case 0x1100:
+ switch (c2){
+ case 0x0000:
+ if (c == 0x1104 || c == 0x1108 ||
+ c == 0x110a || c == 0x110d)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ case 0x0030:
+ if (c == 0x113b || c == 0x113f)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ case 0x0040:
+ if (c == 0x1141 || c == 0x114d
+ || c == 0x114f )
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ case 0x0050:
+ if (c == 0x1151 || c == 0x1156)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ case 0x0060:
+ if (c == 0x1162 || c == 0x1164
+ || c == 0x1166 || c == 0x116b
+ || c == 0x116f)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ case 0x00b0:
+ if (c == 0x11b6 || c == 0x11b9
+ || c == 0x11bb || c == 0x116f)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ break;
+ default:
+ if (c == 0x1174 || c == 0x119f
+ || c == 0x11ac || c == 0x11c3
+ || c == 0x11f1)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ }
+ break;
+ default:
+ if (c == 0x0e46 || c == 0x1011
+ || c == 0x212f || c == 0x0587
+ || c == 0x0230 )
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ }
+ }
+ // punt on exact tests from Appendix A; approximate
+ // them using the Unicode ID start/part rules
+ if (i == readBufferPos && isName) {
+ if (!Character.isUnicodeIdentifierStart (c)
+ && c != ':' && c != '_')
+ error ("Not a name start character, U+"
+ + Integer.toHexString (c));
+ } else if (!Character.isUnicodeIdentifierPart (c)
+ && c != '-' && c != ':' && c != '_' && c != '.'
+ && !isExtender (c))
+ error ("Not a name character, U+"
+ + Integer.toHexString (c));
+ }
+ }
+ }
+
+ nameBufferPos = 0;
+
+ // Read the first character.
+loop:
+ while (true) {
+ c = readCh ();
+ switch (c) {
+ case '%':
+ case '<': case '>': case '&':
+ case ',': case '|': case '*': case '+': case '?':
+ case ')':
+ case '=':
+ case '\'': case '"':
+ case '[':
+ case ' ': case '\t': case '\n': case '\r':
+ case ';':
+ case '/':
+ unread (c);
+ if (nameBufferPos == 0) {
+ error ("name expected");
+ }
+ // punt on exact tests from Appendix A, but approximate them
+ if (isName
+ && !Character.isUnicodeIdentifierStart (
+ nameBuffer [0])
+ && ":_".indexOf (nameBuffer [0]) == -1)
+ error ("Not a name start character, U+"
+ + Integer.toHexString (nameBuffer [0]));
+ String s = intern (nameBuffer, 0, nameBufferPos);
+ nameBufferPos = 0;
+ return s;
+ default:
+ // punt on exact tests from Appendix A, but approximate them
+
+ if ((nameBufferPos != 0 || !isName)
+ && !Character.isUnicodeIdentifierPart (c)
+ && ":-_.".indexOf (c) == -1
+ && !isExtender (c))
+ error ("Not a name character, U+"
+ + Integer.toHexString (c));
+ if (nameBufferPos >= nameBuffer.length)
+ nameBuffer =
+ (char[]) extendArray (nameBuffer,
+ nameBuffer.length, nameBufferPos);
+ nameBuffer [nameBufferPos++] = c;
+ }
+ }
+ }
- /**
- * Read a literal. With matching single or double quotes as
- * delimiters (and not embedded!) this is used to parse:
- * <pre>
- * [9] EntityValue ::= ... ([^%&] | PEReference | Reference)* ...
- * [10] AttValue ::= ... ([^<&] | Reference)* ...
- * [11] SystemLiteral ::= ... (URLchar - "'")* ...
- * [12] PubidLiteral ::= ... (PubidChar - "'")* ...
- * </pre>
- * as well as the quoted strings in XML and text declarations
- * (for version, encoding, and standalone) which have their
- * own constraints.
- */
- private String readLiteral(int flags)
+ private static boolean isExtender (char c)
+ {
+ // [88] Extender ::= ...
+ return c == 0x00b7 || c == 0x02d0 || c == 0x02d1 || c == 0x0387
+ || c == 0x0640 || c == 0x0e46 || c == 0x0ec6 || c == 0x3005
+ || (c >= 0x3031 && c <= 0x3035)
+ || (c >= 0x309d && c <= 0x309e)
+ || (c >= 0x30fc && c <= 0x30fe);
+ }
+
+
+ /**
+ * Read a literal. With matching single or double quotes as
+ * delimiters (and not embedded!) this is used to parse:
+ * <pre>
+ * [9] EntityValue ::= ... ([^%&] | PEReference | Reference)* ...
+ * [10] AttValue ::= ... ([^<&] | Reference)* ...
+ * [11] SystemLiteral ::= ... (URLchar - "'")* ...
+ * [12] PubidLiteral ::= ... (PubidChar - "'")* ...
+ * </pre>
+ * as well as the quoted strings in XML and text declarations
+ * (for version, encoding, and standalone) which have their
+ * own constraints.
+ */
+ private String readLiteral (int flags)
throws SAXException, IOException
- {
- char delim, c;
- int startLine = line;
- boolean saved = expandPE;
- boolean savedReport = doReport;
-
- // Find the first delimiter.
- delim = readCh();
- if (delim != '"' && delim != '\'')
- {
- error("expected '\"' or \"'\"", delim, null);
- return null;
- }
- inLiteral = true;
- if ((flags & LIT_DISABLE_PE) != 0)
- {
- expandPE = false;
- }
- doReport = false;
-
- // Each level of input source has its own buffer; remember
- // ours, so we won't read the ending delimiter from any
- // other input source, regardless of entity processing.
- char[] ourBuf = readBuffer;
-
- // Read the literal.
- try
- {
- c = readCh();
- boolean ampRead = false;
+ {
+ char delim, c;
+ int startLine = line;
+ boolean saved = expandPE;
+ boolean savedReport = doReport;
+
+ // Find the first delimiter.
+ delim = readCh ();
+ if (delim != '"' && delim != '\'') {
+ error ("expected '\"' or \"'\"", delim, null);
+ return null;
+ }
+ inLiteral = true;
+ if ((flags & LIT_DISABLE_PE) != 0)
+ expandPE = false;
+ doReport = false;
+
+ // Each level of input source has its own buffer; remember
+ // ours, so we won't read the ending delimiter from any
+ // other input source, regardless of entity processing.
+ char ourBuf [] = readBuffer;
+
+ // Read the literal.
+ try {
+ c = readCh ();
+ boolean ampRead = false;
loop:
- while (! (c == delim && readBuffer == ourBuf))
- {
- switch (c)
- {
- // attributes and public ids are normalized
- // in almost the same ways
- case '\n':
- case '\r':
- if ((flags & (LIT_ATTRIBUTE | LIT_PUBID)) != 0)
- {
- c = ' ';
- }
- break;
- case '\t':
- if ((flags & LIT_ATTRIBUTE) != 0)
- {
- c = ' ';
- }
- break;
- case '&':
- c = readCh();
- // Char refs are expanded immediately, except for
- // all the cases where it's deferred.
- if (c == '#')
- {
- if ((flags & LIT_DISABLE_CREF) != 0)
- {
- dataBufferAppend('&');
- break;
- }
- parseCharRef(false /* Do not do flushDataBuffer */);
-
- // exotic WFness risk: this is an entity literal,
- // dataBuffer [dataBufferPos - 1] == '&', and
- // following chars are a _partial_ entity/char ref
-
- // It looks like an entity ref ...
- }
- else
- {
- unread(c);
- // Expand it?
- if ((flags & LIT_ENTITY_REF) > 0)
- {
- parseEntityRef(false);
- if (String.valueOf(readBuffer).equals("&"))
- {
- ampRead = true;
- }
+ while (! (c == delim && readBuffer == ourBuf)) {
+ switch (c) {
+ // attributes and public ids are normalized
+ // in almost the same ways
+ case '\n':
+ case '\r':
+ if ((flags & (LIT_ATTRIBUTE | LIT_PUBID)) != 0)
+ c = ' ';
+ break;
+ case '\t':
+ if ((flags & LIT_ATTRIBUTE) != 0)
+ c = ' ';
+ break;
+ case '&':
+ c = readCh ();
+ // Char refs are expanded immediately, except for
+ // all the cases where it's deferred.
+ if (c == '#') {
+ if ((flags & LIT_DISABLE_CREF) != 0) {
+ dataBufferAppend ('&');
+ break;
+ }
+ parseCharRef (false /* Do not do flushDataBuffer */);
+
+ // exotic WFness risk: this is an entity literal,
+ // dataBuffer [dataBufferPos - 1] == '&', and
+ // following chars are a _partial_ entity/char ref
+
+ // It looks like an entity ref ...
+ } else {
+ unread (c);
+ // Expand it?
+ if ((flags & LIT_ENTITY_REF) > 0) {
+ parseEntityRef (false);
+ if (String.valueOf (readBuffer).equals("&"))
+ ampRead = true;
//Is it just data?
- }
- else if ((flags & LIT_DISABLE_EREF) != 0)
- {
- dataBufferAppend('&');
-
- // OK, it will be an entity ref -- expanded later.
- }
- else
- {
- String name = readNmtoken(true);
- require(';');
- dataBufferAppend('&');
- dataBufferAppend(name);
- dataBufferAppend(';');
- }
- }
- c = readCh();
- continue loop;
-
- case '<':
- // and why? Perhaps so "&foo;" expands the same
- // inside and outside an attribute?
- if ((flags & LIT_ATTRIBUTE) != 0)
- {
- error("attribute values may not contain '<'");
- }
- break;
-
- // We don't worry about case '%' and PE refs, readCh does.
-
- default:
- break;
- }
- dataBufferAppend(c);
- c = readCh();
- }
- }
- catch (EOFException e)
- {
- error("end of input while looking for delimiter (started on line "
- + startLine + ')', null, new Character(delim).toString());
- }
- inLiteral = false;
- expandPE = saved;
- doReport = savedReport;
-
- // Normalise whitespace if necessary.
- if ((flags & LIT_NORMALIZE) > 0)
- {
- dataBufferNormalize();
- }
-
- // Return the value.
- return dataBufferToString();
- }
-
- /**
- * Try reading external identifiers.
- * A system identifier is not required for notations.
- * @param inNotation Are we parsing a notation decl?
- * @param isSubset Parsing external subset decl (may be omitted)?
- * @return A three-member String array containing the identifiers,
- * or nulls. Order: public, system, baseURI.
- */
- private ExternalIdentifiers readExternalIds(boolean inNotation,
- boolean isSubset)
+ } else if ((flags & LIT_DISABLE_EREF) != 0) {
+ dataBufferAppend ('&');
+
+ // OK, it will be an entity ref -- expanded later.
+ } else {
+ String name = readNmtoken (true);
+ require (';');
+ dataBufferAppend ('&');
+ dataBufferAppend (name);
+ dataBufferAppend (';');
+ }
+ }
+ c = readCh ();
+ continue loop;
+
+ case '<':
+ // and why? Perhaps so "&foo;" expands the same
+ // inside and outside an attribute?
+ if ((flags & LIT_ATTRIBUTE) != 0)
+ error ("attribute values may not contain '<'");
+ break;
+
+ // We don't worry about case '%' and PE refs, readCh does.
+
+ default:
+ break;
+ }
+ dataBufferAppend (c);
+ c = readCh ();
+ }
+ } catch (EOFException e) {
+ error ("end of input while looking for delimiter (started on line "
+ + startLine + ')', null, new Character (delim).toString ());
+ }
+ inLiteral = false;
+ expandPE = saved;
+ doReport = savedReport;
+
+ // Normalise whitespace if necessary.
+ if ((flags & LIT_NORMALIZE) > 0) {
+ dataBufferNormalize ();
+ }
+
+ // Return the value.
+ return dataBufferToString ();
+ }
+
+
+ /**
+ * Try reading external identifiers.
+ * A system identifier is not required for notations.
+ * @param inNotation Are we parsing a notation decl?
+ * @param isSubset Parsing external subset decl (may be omitted)?
+ * @return A three-member String array containing the identifiers,
+ * or nulls. Order: public, system, baseURI.
+ */
+ private String[] readExternalIds (boolean inNotation, boolean isSubset)
throws Exception
- {
- char c;
- ExternalIdentifiers ids = new ExternalIdentifiers();
- int flags = LIT_DISABLE_CREF | LIT_DISABLE_PE | LIT_DISABLE_EREF;
-
- if (tryRead("PUBLIC"))
- {
- requireWhitespace();
- ids.publicId = readLiteral(LIT_NORMALIZE | LIT_PUBID | flags);
- if (inNotation)
- {
- skipWhitespace();
- c = readCh();
- unread(c);
- if (c == '"' || c == '\'')
- {
- ids.systemId = readLiteral(flags);
- }
- }
- else
- {
- requireWhitespace();
- ids.systemId = readLiteral(flags);
- }
-
- for (int i = 0; i < ids.publicId.length(); i++)
- {
- c = ids.publicId.charAt(i);
- if (c >= 'a' && c <= 'z')
- {
- continue;
- }
- if (c >= 'A' && c <= 'Z')
- {
- continue;
- }
- if (" \r\n0123456789-' ()+,./:=?;!*#@$_%".indexOf(c) != -1)
- {
- continue;
- }
- error("illegal PUBLIC id character U+"
- + Integer.toHexString(c));
- }
- }
- else if (tryRead("SYSTEM"))
- {
- requireWhitespace();
- ids.systemId = readLiteral(flags);
- }
- else if (!isSubset)
- {
- error("missing SYSTEM or PUBLIC keyword");
- }
-
- if (ids.systemId != null)
- {
- if (ids.systemId.indexOf('#') != -1)
- {
- handler.verror("SYSTEM id has an URI fragment: " + ids.systemId);
- }
- ids.baseUri = handler.getSystemId();
- if (ids.baseUri == null && uriWarnings)
- {
- handler.warn("No base URI; hope URI is absolute: "
- + ids.systemId);
- }
- }
-
- return ids;
- }
+ {
+ char c;
+ String ids[] = new String [3];
+ int flags = LIT_DISABLE_CREF | LIT_DISABLE_PE | LIT_DISABLE_EREF;
+
+ if (tryRead ("PUBLIC")) {
+ requireWhitespace ();
+ ids [0] = readLiteral (LIT_NORMALIZE | LIT_PUBID | flags);
+ if (inNotation) {
+ skipWhitespace ();
+ c = readCh ();
+ unread (c);
+ if (c == '"' || c == '\'') {
+ ids [1] = readLiteral (flags);
+ }
+ } else {
+ requireWhitespace ();
+ ids [1] = readLiteral (flags);
+ }
+
+ for (int i = 0; i < ids [0].length (); i++) {
+ c = ids [0].charAt (i);
+ if (c >= 'a' && c <= 'z')
+ continue;
+ if (c >= 'A' && c <= 'Z')
+ continue;
+ if (" \r\n0123456789-' ()+,./:=?;!*#@$_%".indexOf (c) != -1)
+ continue;
+ error ("illegal PUBLIC id character U+"
+ + Integer.toHexString (c));
+ }
+ } else if (tryRead ("SYSTEM")) {
+ requireWhitespace ();
+ ids [1] = readLiteral (flags);
+ } else if (!isSubset)
+ error ("missing SYSTEM or PUBLIC keyword");
+
+ if (ids [1] != null) {
+ if (ids [1].indexOf ('#') != -1)
+ handler.verror ("SYSTEM id has a URI fragment: " + ids [1]);
+ ids [2] = handler.getSystemId ();
+ if (ids [2] == null)
+ handler.warn ("No base URI; hope URI is absolute: "
+ + ids [1]);
+ }
+
+ return ids;
+ }
- /**
- * Test if a character is whitespace.
- * <pre>
- * [3] S ::= (#x20 | #x9 | #xd | #xa)+
- * </pre>
- * @param c The character to test.
- * @return true if the character is whitespace.
- */
- private final boolean isWhitespace(char c)
- {
- if (c > 0x20)
- {
- return false;
- }
- if (c == 0x20 || c == 0x0a || c == 0x09 || c == 0x0d)
- {
- return true;
- }
- return false; // illegal ...
- }
- //////////////////////////////////////////////////////////////////////
- // Utility routines.
- //////////////////////////////////////////////////////////////////////
-
- /**
- * Add a character to the data buffer.
- */
- private void dataBufferAppend(char c)
- {
- // Expand buffer if necessary.
- if (dataBufferPos >= dataBuffer.length)
- {
- dataBuffer = (char[]) extendArray(dataBuffer,
- dataBuffer.length, dataBufferPos);
- }
- dataBuffer[dataBufferPos++] = c;
- }
+ /**
+ * Test if a character is whitespace.
+ * <pre>
+ * [3] S ::= (#x20 | #x9 | #xd | #xa)+
+ * </pre>
+ * @param c The character to test.
+ * @return true if the character is whitespace.
+ */
+ private final boolean isWhitespace (char c)
+ {
+ if (c > 0x20)
+ return false;
+ if (c == 0x20 || c == 0x0a || c == 0x09 || c == 0x0d)
+ return true;
+ return false; // illegal ...
+ }
- /**
- * Add a string to the data buffer.
- */
- private void dataBufferAppend(String s)
- {
- dataBufferAppend(s.toCharArray(), 0, s.length());
- }
- /**
- * Append (part of) a character array to the data buffer.
- */
- private void dataBufferAppend(char[] ch, int start, int length)
- {
- dataBuffer = (char[]) extendArray(dataBuffer, dataBuffer.length,
- dataBufferPos + length);
-
- System.arraycopy(ch, start, dataBuffer, dataBufferPos, length);
- dataBufferPos += length;
- }
+ //////////////////////////////////////////////////////////////////////
+ // Utility routines.
+ //////////////////////////////////////////////////////////////////////
- /**
- * Normalise space characters in the data buffer.
- */
- private void dataBufferNormalize()
- {
- int i = 0;
- int j = 0;
- int end = dataBufferPos;
-
- // Skip spaces at the start.
- while (j < end && dataBuffer[j] == ' ')
- {
- j++;
- }
-
- // Skip whitespace at the end.
- while (end > j && dataBuffer[end - 1] == ' ')
- {
- end --;
- }
- // Start copying to the left.
- while (j < end)
- {
-
- char c = dataBuffer[j++];
-
- // Normalise all other spaces to
- // a single space.
- if (c == ' ')
- {
- while (j < end && dataBuffer[j++] == ' ')
- {
- continue;
- }
- dataBuffer[i++] = ' ';
- dataBuffer[i++] = dataBuffer[j - 1];
- }
- else
- {
- dataBuffer[i++] = c;
- }
- }
-
- // The new length is <= the old one.
- dataBufferPos = i;
- }
+ /**
+ * Add a character to the data buffer.
+ */
+ private void dataBufferAppend (char c)
+ {
+ // Expand buffer if necessary.
+ if (dataBufferPos >= dataBuffer.length)
+ dataBuffer =
+ (char[]) extendArray (dataBuffer,
+ dataBuffer.length, dataBufferPos);
+ dataBuffer [dataBufferPos++] = c;
+ }
- /**
- * Convert the data buffer to a string.
- */
- private String dataBufferToString()
- {
- String s = new String(dataBuffer, 0, dataBufferPos);
- dataBufferPos = 0;
- return s;
- }
- /**
- * Flush the contents of the data buffer to the handler, as
- * appropriate, and reset the buffer for new input.
- */
- private void dataBufferFlush()
- throws SAXException
- {
- if (currentElementContent == CONTENT_ELEMENTS
- && dataBufferPos > 0
- && !inCDATA)
- {
- // We can't just trust the buffer to be whitespace, there
- // are (error) cases when it isn't
- for (int i = 0; i < dataBufferPos; i++)
- {
- if (!isWhitespace(dataBuffer[i]))
- {
- handler.charData(dataBuffer, 0, dataBufferPos);
- dataBufferPos = 0;
- }
- }
- if (dataBufferPos > 0)
- {
- handler.ignorableWhitespace(dataBuffer, 0, dataBufferPos);
- dataBufferPos = 0;
- }
- }
- else if (dataBufferPos > 0)
- {
- handler.charData(dataBuffer, 0, dataBufferPos);
- dataBufferPos = 0;
- }
- }
+ /**
+ * Add a string to the data buffer.
+ */
+ private void dataBufferAppend (String s)
+ {
+ dataBufferAppend (s.toCharArray (), 0, s.length ());
+ }
+
+
+ /**
+ * Append (part of) a character array to the data buffer.
+ */
+ private void dataBufferAppend (char ch[], int start, int length)
+ {
+ dataBuffer = (char[])
+ extendArray (dataBuffer, dataBuffer.length,
+ dataBufferPos + length);
+
+ System.arraycopy (ch, start, dataBuffer, dataBufferPos, length);
+ dataBufferPos += length;
+ }
+
+
+ /**
+ * Normalise space characters in the data buffer.
+ */
+ private void dataBufferNormalize ()
+ {
+ int i = 0;
+ int j = 0;
+ int end = dataBufferPos;
+
+ // Skip spaces at the start.
+ while (j < end && dataBuffer [j] == ' ') {
+ j++;
+ }
+
+ // Skip whitespace at the end.
+ while (end > j && dataBuffer [end - 1] == ' ') {
+ end --;
+ }
+
+ // Start copying to the left.
+ while (j < end) {
+
+ char c = dataBuffer [j++];
+
+ // Normalise all other spaces to
+ // a single space.
+ if (c == ' ') {
+ while (j < end && dataBuffer [j++] == ' ')
+ continue;
+ dataBuffer [i++] = ' ';
+ dataBuffer [i++] = dataBuffer [j - 1];
+ } else {
+ dataBuffer [i++] = c;
+ }
+ }
+
+ // The new length is <= the old one.
+ dataBufferPos = i;
+ }
+
+
+ /**
+ * Convert the data buffer to a string.
+ */
+ private String dataBufferToString ()
+ {
+ String s = new String (dataBuffer, 0, dataBufferPos);
+ dataBufferPos = 0;
+ return s;
+ }
+
+
+ /**
+ * Flush the contents of the data buffer to the handler, as
+ * appropriate, and reset the buffer for new input.
+ */
+ private void dataBufferFlush ()
+ throws SAXException
+ {
+ if (currentElementContent == CONTENT_ELEMENTS
+ && dataBufferPos > 0
+ && !inCDATA
+ ) {
+ // We can't just trust the buffer to be whitespace, there
+ // are (error) cases when it isn't
+ for (int i = 0; i < dataBufferPos; i++) {
+ if (!isWhitespace (dataBuffer [i])) {
+ handler.charData (dataBuffer, 0, dataBufferPos);
+ dataBufferPos = 0;
+ }
+ }
+ if (dataBufferPos > 0) {
+ handler.ignorableWhitespace (dataBuffer, 0, dataBufferPos);
+ dataBufferPos = 0;
+ }
+ } else if (dataBufferPos > 0) {
+ handler.charData (dataBuffer, 0, dataBufferPos);
+ dataBufferPos = 0;
+ }
+ }
+
+
+ /**
+ * Require a string to appear, or throw an exception.
+ * <p><em>Precondition:</em> Entity expansion is not required.
+ * <p><em>Precondition:</em> data buffer has no characters that
+ * will get sent to the application.
+ */
+ private void require (String delim)
+ throws SAXException, IOException
+ {
+ int length = delim.length ();
+ char ch [];
+
+ if (length < dataBuffer.length) {
+ ch = dataBuffer;
+ delim.getChars (0, length, ch, 0);
+ } else
+ ch = delim.toCharArray ();
+
+ if (USE_CHEATS
+ && length <= (readBufferLength - readBufferPos)) {
+ int offset = readBufferPos;
+
+ for (int i = 0; i < length; i++, offset++)
+ if (ch [i] != readBuffer [offset])
+ error ("required string", null, delim);
+ readBufferPos = offset;
+
+ } else {
+ for (int i = 0; i < length; i++)
+ require (ch [i]);
+ }
+ }
+
+
+ /**
+ * Require a character to appear, or throw an exception.
+ */
+ private void require (char delim)
+ throws SAXException, IOException
+ {
+ char c = readCh ();
+
+ if (c != delim) {
+ error ("required character", c, new Character (delim).toString ());
+ }
+ }
+
+
+ /**
+ * Create an interned string from a character array.
+ * Ælfred uses this method to create an interned version
+ * of all names and name tokens, so that it can test equality
+ * with <code>==</code> instead of <code>String.equals ()</code>.
+ *
+ * <p>This is much more efficient than constructing a non-interned
+ * string first, and then interning it.
+ *
+ * @param ch an array of characters for building the string.
+ * @param start the starting position in the array.
+ * @param length the number of characters to place in the string.
+ * @return an interned string.
+ * @see #intern (String)
+ * @see java.lang.String#intern
+ */
+ public String intern (char ch[], int start, int length)
+ {
+ int index = 0;
+ int hash = 0;
+ Object bucket [];
+
+ // Generate a hash code. This is a widely used string hash,
+ // often attributed to Brian Kernighan.
+ for (int i = start; i < start + length; i++)
+ hash = 31 * hash + ch [i];
+ hash = (hash & 0x7fffffff) % SYMBOL_TABLE_LENGTH;
+
+ // Get the bucket -- consists of {array,String} pairs
+ if ((bucket = symbolTable [hash]) == null) {
+ // first string in this bucket
+ bucket = new Object [8];
+
+ // Search for a matching tuple, and
+ // return the string if we find one.
+ } else {
+ while (index < bucket.length) {
+ char chFound [] = (char []) bucket [index];
+
+ // Stop when we hit an empty entry.
+ if (chFound == null)
+ break;
+
+ // If they're the same length, check for a match.
+ if (chFound.length == length) {
+ for (int i = 0; i < chFound.length; i++) {
+ // continue search on failure
+ if (ch [start + i] != chFound [i]) {
+ break;
+ } else if (i == length - 1) {
+ // That's it, we have a match!
+ return (String) bucket [index + 1];
+ }
+ }
+ }
+ index += 2;
+ }
+ // Not found -- we'll have to add it.
+
+ // Do we have to grow the bucket?
+ bucket = (Object []) extendArray (bucket, bucket.length, index);
+ }
+ symbolTable [hash] = bucket;
+
+ // OK, add it to the end of the bucket -- "local" interning.
+ // Intern "globally" to let applications share interning benefits.
+ // That is, "!=" and "==" work on our strings, not just equals().
+ String s = new String (ch, start, length).intern ();
+ bucket [index] = s.toCharArray ();
+ bucket [index + 1] = s;
+ return s;
+ }
+
+ /**
+ * Ensure the capacity of an array, allocating a new one if
+ * necessary. Usually extends only for name hash collisions.
+ */
+ private Object extendArray (Object array, int currentSize, int requiredSize)
+ {
+ if (requiredSize < currentSize) {
+ return array;
+ } else {
+ Object newArray = null;
+ int newSize = currentSize * 2;
+
+ if (newSize <= requiredSize)
+ newSize = requiredSize + 1;
+
+ if (array instanceof char[])
+ newArray = new char [newSize];
+ else if (array instanceof Object[])
+ newArray = new Object [newSize];
+ else
+ throw new RuntimeException ();
+
+ System.arraycopy (array, 0, newArray, 0, currentSize);
+ return newArray;
+ }
+ }
+
+
+ //////////////////////////////////////////////////////////////////////
+ // XML query routines.
+ //////////////////////////////////////////////////////////////////////
+
+
+ boolean isStandalone () { return docIsStandalone; }
+
+
+ //
+ // Elements
+ //
+
+ private int getContentType (Object element [], int defaultType)
+ {
+ int retval;
+
+ if (element == null)
+ return defaultType;
+ retval = ((Integer) element [0]).intValue ();
+ if (retval == CONTENT_UNDECLARED)
+ retval = defaultType;
+ return retval;
+ }
+
+
+ /**
+ * Look up the content type of an element.
+ * @param name The element type name.
+ * @return An integer constant representing the content type.
+ * @see #CONTENT_UNDECLARED
+ * @see #CONTENT_ANY
+ * @see #CONTENT_EMPTY
+ * @see #CONTENT_MIXED
+ * @see #CONTENT_ELEMENTS
+ */
+ public int getElementContentType (String name)
+ {
+ Object element [] = (Object []) elementInfo.get (name);
+ return getContentType (element, CONTENT_UNDECLARED);
+ }
+
+
+ /**
+ * Register an element.
+ * Array format:
+ * [0] element type name
+ * [1] content model (mixed, elements only)
+ * [2] attribute hash table
+ */
+ private void setElement (
+ String name,
+ int contentType,
+ String contentModel,
+ Hashtable attributes
+ ) throws SAXException
+ {
+ if (skippedPE)
+ return;
+
+ Object element [] = (Object []) elementInfo.get (name);
+
+ // first <!ELEMENT ...> or <!ATTLIST ...> for this type?
+ if (element == null) {
+ element = new Object [3];
+ element [0] = new Integer (contentType);
+ element [1] = contentModel;
+ element [2] = attributes;
+ elementInfo.put (name, element);
+ return;
+ }
+
+ // <!ELEMENT ...> declaration?
+ if (contentType != CONTENT_UNDECLARED) {
+ // ... following an associated <!ATTLIST ...>
+ if (((Integer) element [0]).intValue () == CONTENT_UNDECLARED) {
+ element [0] = new Integer (contentType);
+ element [1] = contentModel;
+ } else
+ // VC: Unique Element Type Declaration
+ handler.verror ("multiple declarations for element type: "
+ + name);
+ }
+
+ // first <!ATTLIST ...>, before <!ELEMENT ...> ?
+ else if (attributes != null)
+ element [2] = attributes;
+ }
+
+
+ /**
+ * Look up the attribute hash table for an element.
+ * The hash table is the second item in the element array.
+ */
+ private Hashtable getElementAttributes (String name)
+ {
+ Object element[] = (Object[]) elementInfo.get (name);
+ if (element == null)
+ return null;
+ else
+ return (Hashtable) element [2];
+ }
+
- /**
- * Require a string to appear, or throw an exception.
- * <p><em>Precondition:</em> Entity expansion is not required.
- * <p><em>Precondition:</em> data buffer has no characters that
- * will get sent to the application.
- */
- private void require(String delim)
- throws SAXException, IOException
- {
- int length = delim.length();
- char[] ch;
-
- if (length < dataBuffer.length)
- {
- ch = dataBuffer;
- delim.getChars(0, length, ch, 0);
- }
- else
- {
- ch = delim.toCharArray();
- }
-
- if (USE_CHEATS && length <= (readBufferLength - readBufferPos))
- {
- int offset = readBufferPos;
-
- for (int i = 0; i < length; i++, offset++)
- {
- if (ch[i] != readBuffer[offset])
- {
- error ("required string", null, delim);
- }
- }
- readBufferPos = offset;
-
- }
- else
- {
- for (int i = 0; i < length; i++)
- {
- require(ch[i]);
- }
- }
- }
- /**
- * Require a character to appear, or throw an exception.
- */
- private void require(char delim)
- throws SAXException, IOException
- {
- char c = readCh();
-
- if (c != delim)
- {
- error("required character", c, new Character(delim).toString());
- }
- }
-
- /**
- * Create an interned string from a character array.
- * Ælfred uses this method to create an interned version
- * of all names and name tokens, so that it can test equality
- * with <code>==</code> instead of <code>String.equals ()</code>.
- *
- * <p>This is much more efficient than constructing a non-interned
- * string first, and then interning it.
- *
- * @param ch an array of characters for building the string.
- * @param start the starting position in the array.
- * @param length the number of characters to place in the string.
- * @return an interned string.
- * @see #intern (String)
- * @see java.lang.String#intern
- */
- public String intern(char[] ch, int start, int length)
- {
- int index = 0;
- int hash = 0;
- Object[] bucket;
-
- // Generate a hash code. This is a widely used string hash,
- // often attributed to Brian Kernighan.
- for (int i = start; i < start + length; i++)
- {
- hash = 31 * hash + ch[i];
- }
- hash = (hash & 0x7fffffff) % SYMBOL_TABLE_LENGTH;
-
- // Get the bucket -- consists of {array,String} pairs
- if ((bucket = symbolTable[hash]) == null)
- {
- // first string in this bucket
- bucket = new Object[8];
-
- // Search for a matching tuple, and
- // return the string if we find one.
- }
- else
- {
- while (index < bucket.length)
- {
- char[] chFound = (char[]) bucket[index];
-
- // Stop when we hit an empty entry.
- if (chFound == null)
- {
- break;
- }
-
- // If they're the same length, check for a match.
- if (chFound.length == length)
- {
- for (int i = 0; i < chFound.length; i++)
- {
- // continue search on failure
- if (ch[start + i] != chFound[i])
- {
- break;
- }
- else if (i == length - 1)
- {
- // That's it, we have a match!
- return (String) bucket[index + 1];
- }
- }
- }
- index += 2;
- }
- // Not found -- we'll have to add it.
-
- // Do we have to grow the bucket?
- bucket = (Object[]) extendArray(bucket, bucket.length, index);
- }
- symbolTable[hash] = bucket;
-
- // OK, add it to the end of the bucket -- "local" interning.
- // Intern "globally" to let applications share interning benefits.
- // That is, "!=" and "==" work on our strings, not just equals().
- String s = new String(ch, start, length).intern();
- bucket[index] = s.toCharArray();
- bucket[index + 1] = s;
- return s;
- }
+ //
+ // Attributes
+ //
- /**
- * Ensure the capacity of an array, allocating a new one if
- * necessary. Usually extends only for name hash collisions.
- */
- private Object extendArray(Object array, int currentSize, int requiredSize)
- {
- if (requiredSize < currentSize)
- {
- return array;
- }
- else
- {
- Object newArray = null;
- int newSize = currentSize * 2;
-
- if (newSize <= requiredSize)
- {
- newSize = requiredSize + 1;
- }
-
- if (array instanceof char[])
- {
- newArray = new char[newSize];
- }
- else if (array instanceof Object[])
- {
- newArray = new Object[newSize];
- }
- else
- {
- throw new RuntimeException();
- }
-
- System.arraycopy(array, 0, newArray, 0, currentSize);
- return newArray;
- }
- }
+ /**
+ * Get the declared attributes for an element type.
+ * @param elname The name of the element type.
+ * @return An Enumeration of all the attributes declared for
+ * a specific element type. The results will be valid only
+ * after the DTD (if any) has been parsed.
+ * @see #getAttributeType
+ * @see #getAttributeEnumeration
+ * @see #getAttributeDefaultValueType
+ * @see #getAttributeDefaultValue
+ * @see #getAttributeExpandedValue
+ */
+ private Enumeration declaredAttributes (Object element [])
+ {
+ Hashtable attlist;
- //////////////////////////////////////////////////////////////////////
- // XML query routines.
- //////////////////////////////////////////////////////////////////////
-
- boolean isStandalone()
- {
- return docIsStandalone;
- }
-
- //
- // Elements
- //
-
- private int getContentType(ElementDecl element, int defaultType)
- {
- int retval;
-
- if (element == null)
- {
- return defaultType;
- }
- retval = element.contentType;
- if (retval == CONTENT_UNDECLARED)
- {
- retval = defaultType;
- }
- return retval;
- }
+ if (element == null)
+ return null;
+ if ((attlist = (Hashtable) element [2]) == null)
+ return null;
+ return attlist.keys ();
+ }
- /**
- * Look up the content type of an element.
- * @param name The element type name.
- * @return An integer constant representing the content type.
- * @see #CONTENT_UNDECLARED
- * @see #CONTENT_ANY
- * @see #CONTENT_EMPTY
- * @see #CONTENT_MIXED
- * @see #CONTENT_ELEMENTS
- */
- public int getElementContentType(String name)
- {
- ElementDecl element = (ElementDecl) elementInfo.get(name);
- return getContentType(element, CONTENT_UNDECLARED);
- }
-
- /**
- * Register an element.
- * Array format:
- * [0] element type name
- * [1] content model (mixed, elements only)
- * [2] attribute hash table
- */
- private void setElement(String name, int contentType,
- String contentModel, HashMap attributes)
- throws SAXException
- {
- if (skippedPE)
- {
- return;
- }
+ /**
+ * Get the declared attributes for an element type.
+ * @param elname The name of the element type.
+ * @return An Enumeration of all the attributes declared for
+ * a specific element type. The results will be valid only
+ * after the DTD (if any) has been parsed.
+ * @see #getAttributeType
+ * @see #getAttributeEnumeration
+ * @see #getAttributeDefaultValueType
+ * @see #getAttributeDefaultValue
+ * @see #getAttributeExpandedValue
+ */
+ public Enumeration declaredAttributes (String elname)
+ {
+ return declaredAttributes ((Object []) elementInfo.get (elname));
+ }
- ElementDecl element = (ElementDecl) elementInfo.get(name);
-
- // first <!ELEMENT ...> or <!ATTLIST ...> for this type?
- if (element == null)
- {
- element = new ElementDecl();
- element.contentType = contentType;
- element.contentModel = contentModel;
- element.attributes = attributes;
- elementInfo.put(name, element);
- return;
- }
-
- // <!ELEMENT ...> declaration?
- if (contentType != CONTENT_UNDECLARED)
- {
- // ... following an associated <!ATTLIST ...>
- if (element.contentType == CONTENT_UNDECLARED)
- {
- element.contentType = contentType;
- element.contentModel = contentModel;
- }
- else
- {
- // VC: Unique Element Type Declaration
- handler.verror("multiple declarations for element type: "
- + name);
- }
- }
-
- // first <!ATTLIST ...>, before <!ELEMENT ...> ?
- else if (attributes != null)
- {
- element.attributes = attributes;
- }
- }
-
- /**
- * Look up the attribute hash table for an element.
- * The hash table is the second item in the element array.
- */
- private HashMap getElementAttributes(String name)
- {
- ElementDecl element = (ElementDecl) elementInfo.get(name);
- return (element == null) ? null : element.attributes;
- }
- //
- // Attributes
- //
-
- /**
- * Get the declared attributes for an element type.
- * @param elname The name of the element type.
- * @return An iterator over all the attributes declared for
- * a specific element type. The results will be valid only
- * after the DTD (if any) has been parsed.
- * @see #getAttributeType
- * @see #getAttributeEnumeration
- * @see #getAttributeDefaultValueType
- * @see #getAttributeDefaultValue
- * @see #getAttributeExpandedValue
- */
- private Iterator declaredAttributes(ElementDecl element)
- {
- HashMap attlist;
-
- if (element == null)
- {
- return null;
- }
- if ((attlist = element.attributes) == null)
- {
- return null;
- }
- return attlist.keySet().iterator();
- }
+ /**
+ * Retrieve the declared type of an attribute.
+ * @param name The name of the associated element.
+ * @param aname The name of the attribute.
+ * @return An interend string denoting the type, or null
+ * indicating an undeclared attribute.
+ */
+ public String getAttributeType (String name, String aname)
+ {
+ Object attribute[] = getAttribute (name, aname);
+ if (attribute == null) {
+ return null;
+ } else {
+ return (String) attribute [0];
+ }
+ }
- /**
- * Get the declared attributes for an element type.
- * @param elname The name of the element type.
- * @return An iterator over all the attributes declared for
- * a specific element type. The results will be valid only
- * after the DTD (if any) has been parsed.
- * @see #getAttributeType
- * @see #getAttributeEnumeration
- * @see #getAttributeDefaultValueType
- * @see #getAttributeDefaultValue
- * @see #getAttributeExpandedValue
- */
- public Iterator declaredAttributes(String elname)
- {
- return declaredAttributes((ElementDecl) elementInfo.get(elname));
- }
- /**
- * Retrieve the declared type of an attribute.
- * @param name The name of the associated element.
- * @param aname The name of the attribute.
- * @return An interend string denoting the type, or null
- * indicating an undeclared attribute.
- */
- public String getAttributeType(String name, String aname)
- {
- AttributeDecl attribute = getAttribute(name, aname);
- return (attribute == null) ? null : attribute.type;
- }
+ /**
+ * Retrieve the allowed values for an enumerated attribute type.
+ * @param name The name of the associated element.
+ * @param aname The name of the attribute.
+ * @return A string containing the token list.
+ */
+ public String getAttributeEnumeration (String name, String aname)
+ {
+ Object attribute[] = getAttribute (name, aname);
+ if (attribute == null) {
+ return null;
+ } else {
+ // assert: attribute [0] is "ENUMERATION" or "NOTATION"
+ return (String) attribute [3];
+ }
+ }
- /**
- * Retrieve the allowed values for an enumerated attribute type.
- * @param name The name of the associated element.
- * @param aname The name of the attribute.
- * @return A string containing the token list.
- */
- public String getAttributeEnumeration(String name, String aname)
- {
- AttributeDecl attribute = getAttribute(name, aname);
- // assert: attribute.enumeration is "ENUMERATION" or "NOTATION"
- return (attribute == null) ? null : attribute.enumeration;
- }
- /**
- * Retrieve the default value of a declared attribute.
- * @param name The name of the associated element.
- * @param aname The name of the attribute.
- * @return The default value, or null if the attribute was
- * #IMPLIED or simply undeclared and unspecified.
- * @see #getAttributeExpandedValue
- */
- public String getAttributeDefaultValue(String name, String aname)
- {
- AttributeDecl attribute = getAttribute(name, aname);
- return (attribute == null) ? null : attribute.value;
- }
+ /**
+ * Retrieve the default value of a declared attribute.
+ * @param name The name of the associated element.
+ * @param aname The name of the attribute.
+ * @return The default value, or null if the attribute was
+ * #IMPLIED or simply undeclared and unspecified.
+ * @see #getAttributeExpandedValue
+ */
+ public String getAttributeDefaultValue (String name, String aname)
+ {
+ Object attribute[] = getAttribute (name, aname);
+ if (attribute == null) {
+ return null;
+ } else {
+ return (String) attribute [1];
+ }
+ }
/*
* @param name The name of the associated element.
* @param aname The name of the attribute.
* @return The expanded default value, or null if the attribute was
- * #IMPLIED or simply undeclared
+ * #IMPLIED or simply undeclared
* @see #getAttributeDefaultValue
public String getAttributeExpandedValue (String name, String aname)
throws Exception
{
- AttributeDecl attribute = getAttribute (name, aname);
-
- if (attribute == null) {
- return null;
- } else if (attribute.defaultValue == null && attribute.value != null) {
- // we MUST use the same buf for both quotes else the literal
- // can't be properly terminated
- char buf [] = new char [1];
- int flags = LIT_ENTITY_REF | LIT_ATTRIBUTE;
- String type = getAttributeType (name, aname);
-
- if (type != "CDATA" && type != null)
- flags |= LIT_NORMALIZE;
- buf [0] = '"';
- pushCharArray (null, buf, 0, 1);
- pushString (null, attribute.value);
- pushCharArray (null, buf, 0, 1);
- attribute.defaultValue = readLiteral (flags);
- }
- return attribute.defaultValue;
+ Object attribute[] = getAttribute (name, aname);
+
+ if (attribute == null) {
+ return null;
+ } else if (attribute [4] == null && attribute [1] != null) {
+ // we MUST use the same buf for both quotes else the literal
+ // can't be properly terminated
+ char buf [] = new char [1];
+ int flags = LIT_ENTITY_REF | LIT_ATTRIBUTE;
+ String type = getAttributeType (name, aname);
+
+ if (type != "CDATA" && type != null)
+ flags |= LIT_NORMALIZE;
+ buf [0] = '"';
+ pushCharArray (null, buf, 0, 1);
+ pushString (null, (String) attribute [1]);
+ pushCharArray (null, buf, 0, 1);
+ attribute [4] = readLiteral (flags);
+ }
+ return (String) attribute [4];
}
*/
- /**
- * Retrieve the default value mode of a declared attribute.
- * @see #ATTRIBUTE_DEFAULT_SPECIFIED
- * @see #ATTRIBUTE_DEFAULT_IMPLIED
- * @see #ATTRIBUTE_DEFAULT_REQUIRED
- * @see #ATTRIBUTE_DEFAULT_FIXED
- */
- public int getAttributeDefaultValueType(String name, String aname)
- {
- AttributeDecl attribute = getAttribute(name, aname);
- return (attribute == null) ? ATTRIBUTE_DEFAULT_UNDECLARED :
- attribute.valueType;
- }
-
- /**
- * Register an attribute declaration for later retrieval.
- * Format:
- * - String type
- * - String default value
- * - int value type
- * - enumeration
- * - processed default value
- */
- private void setAttribute(String elName, String name, String type,
- String enumeration, String value, int valueType)
- throws Exception
- {
- HashMap attlist;
-
- if (skippedPE)
- {
- return;
- }
-
- // Create a new hashtable if necessary.
- attlist = getElementAttributes(elName);
- if (attlist == null)
- {
- attlist = new HashMap();
- }
-
- // ignore multiple attribute declarations!
- if (attlist.get(name) != null)
- {
- // warn ...
- return;
- }
- else
- {
- AttributeDecl attribute = new AttributeDecl();
- attribute.type = type;
- attribute.value = value;
- attribute.valueType = valueType;
- attribute.enumeration = enumeration;
- attlist.put(name, attribute);
-
- // save; but don't overwrite any existing <!ELEMENT ...>
- setElement(elName, CONTENT_UNDECLARED, null, attlist);
- }
- }
-
- /**
- * Retrieve the attribute declaration for the given element name and name.
- */
- private AttributeDecl getAttribute(String elName, String name)
- {
- HashMap attlist = getElementAttributes(elName);
- return (attlist == null) ? null : (AttributeDecl) attlist.get(name);
- }
-
- //
- // Entities
- //
-
- /**
- * Find the type of an entity.
- * @returns An integer constant representing the entity type.
- * @see #ENTITY_UNDECLARED
- * @see #ENTITY_INTERNAL
- * @see #ENTITY_NDATA
- * @see #ENTITY_TEXT
- */
- public int getEntityType(String ename)
- {
- EntityInfo entity = (EntityInfo) entityInfo.get(ename);
- return (entity == null) ? ENTITY_UNDECLARED : entity.type;
- }
+ /**
+ * Retrieve the default value mode of a declared attribute.
+ * @see #ATTRIBUTE_DEFAULT_SPECIFIED
+ * @see #ATTRIBUTE_DEFAULT_IMPLIED
+ * @see #ATTRIBUTE_DEFAULT_REQUIRED
+ * @see #ATTRIBUTE_DEFAULT_FIXED
+ */
+ public int getAttributeDefaultValueType (String name, String aname)
+ {
+ Object attribute[] = getAttribute (name, aname);
+ if (attribute == null) {
+ return ATTRIBUTE_DEFAULT_UNDECLARED;
+ } else {
+ return ((Integer) attribute [2]).intValue ();
+ }
+ }
- /**
- * Return an external entity's identifiers.
- * @param ename The name of the external entity.
- * @return The entity's public identifier, system identifier, and base URI.
- * Null if the entity was not declared as an external entity.
- * @see #getEntityType
- */
- public ExternalIdentifiers getEntityIds(String ename)
- {
- EntityInfo entity = (EntityInfo) entityInfo.get(ename);
- return (entity == null) ? null : entity.ids;
- }
- /**
- * Return an internal entity's replacement text.
- * @param ename The name of the internal entity.
- * @return The entity's replacement text, or null if
- * the entity was not declared as an internal entity.
- * @see #getEntityType
- */
- public String getEntityValue(String ename)
- {
- EntityInfo entity = (EntityInfo) entityInfo.get(ename);
- return (entity == null) ? null : entity.value;
- }
+ /**
+ * Register an attribute declaration for later retrieval.
+ * Format:
+ * - String type
+ * - String default value
+ * - int value type
+ * - enumeration
+ * - processed default value
+ */
+ private void setAttribute (String elName, String name, String type,
+ String enumeration,
+ String value, int valueType)
+ throws Exception
+ {
+ Hashtable attlist;
+
+ if (skippedPE)
+ return;
+
+ // Create a new hashtable if necessary.
+ attlist = getElementAttributes (elName);
+ if (attlist == null)
+ attlist = new Hashtable ();
+
+ // ignore multiple attribute declarations!
+ if (attlist.get (name) != null) {
+ // warn ...
+ return;
+ } else {
+ Object attribute [] = new Object [5];
+ attribute [0] = type;
+ attribute [1] = value;
+ attribute [2] = new Integer (valueType);
+ attribute [3] = enumeration;
+ attribute [4] = null;
+ attlist.put (name, attribute);
+
+ // save; but don't overwrite any existing <!ELEMENT ...>
+ setElement (elName, CONTENT_UNDECLARED, null, attlist);
+ }
+ }
- /**
- * Register an entity declaration for later retrieval.
- */
- private void setInternalEntity(String eName, String value)
- throws SAXException
- {
- if (skippedPE)
- {
- return;
- }
- if (entityInfo.get(eName) == null)
- {
- EntityInfo entity = new EntityInfo();
- entity.type = ENTITY_INTERNAL;
- entity.value = value;
- entityInfo.put(eName, entity);
- }
- if (handler.stringInterning)
- {
- if ("lt" == eName || "gt" == eName || "quot" == eName
- || "apos" == eName || "amp" == eName)
- {
- return;
- }
- }
- else
- {
- if ("lt".equals(eName) || "gt".equals(eName) || "quot".equals(eName)
- || "apos".equals(eName) || "amp".equals(eName))
- {
- return;
- }
- }
- handler.getDeclHandler().internalEntityDecl(eName, value);
- }
+ /**
+ * Retrieve the array representing an attribute declaration.
+ */
+ private Object[] getAttribute (String elName, String name)
+ {
+ Hashtable attlist;
- /**
- * Register an external entity declaration for later retrieval.
- */
- private void setExternalEntity(String eName, int eClass,
- ExternalIdentifiers ids, String nName)
- {
- if (entityInfo.get(eName) == null)
- {
- EntityInfo entity = new EntityInfo();
- entity.type = eClass;
- entity.ids = ids;
- entity.notationName = nName;
- entityInfo.put(eName, entity);
- }
- }
+ attlist = getElementAttributes (elName);
+ if (attlist == null)
+ return null;
+ return (Object[]) attlist.get (name);
+ }
- //
- // Notations.
- //
-
- /**
- * Report a notation declaration, checking for duplicates.
- */
- private void setNotation(String nname, ExternalIdentifiers ids)
- throws SAXException
- {
- if (skippedPE)
- {
- return;
- }
-
- handler.notationDecl(nname, ids.publicId, ids.systemId, ids.baseUri);
- if (notationInfo.get(nname) == null)
- {
- notationInfo.put(nname, nname);
- }
- else
- {
- // VC: Unique Notation Name
- handler.verror("Duplicate notation name decl: " + nname);
- }
- }
-
- //
- // Location.
- //
-
- /**
- * Return the current line number.
- */
- public int getLineNumber()
- {
- return line;
- }
- /**
- * Return the current column number.
- */
- public int getColumnNumber()
- {
- return column;
- }
+ //
+ // Entities
+ //
- //////////////////////////////////////////////////////////////////////
- // High-level I/O.
- //////////////////////////////////////////////////////////////////////
-
- /**
- * Read a single character from the readBuffer.
- * <p>The readDataChunk () method maintains the buffer.
- * <p>If we hit the end of an entity, try to pop the stack and
- * keep going.
- * <p> (This approach doesn't really enforce XML's rules about
- * entity boundaries, but this is not currently a validating
- * parser).
- * <p>This routine also attempts to keep track of the current
- * position in external entities, but it's not entirely accurate.
- * @return The next available input character.
- * @see #unread (char)
- * @see #readDataChunk
- * @see #readBuffer
- * @see #line
- * @return The next character from the current input source.
- */
- private char readCh()
- throws SAXException, IOException
- {
- // As long as there's nothing in the
- // read buffer, try reading more data
- // (for an external entity) or popping
- // the entity stack (for either).
- while (readBufferPos >= readBufferLength)
- {
- switch (sourceType)
- {
- case INPUT_READER:
- case INPUT_STREAM:
- readDataChunk();
- while (readBufferLength < 1)
- {
- popInput();
- if (readBufferLength < 1)
- {
- readDataChunk();
- }
- }
- break;
-
- default:
-
- popInput();
- break;
- }
- }
-
- char c = readBuffer[readBufferPos++];
-
- if (c == '\n')
- {
- line++;
- column = 0;
- }
- else
- {
- if (c == '<')
- {
- /* the most common return to parseContent () ... NOP */
- }
- else if (((c < 0x0020 && (c != '\t') && (c != '\r')) || c > 0xFFFD)
- || ((c >= 0x007f) && (c <= 0x009f) && (c != 0x0085)
- && xmlVersion == XML_11))
- {
- error("illegal XML character U+" + Integer.toHexString(c));
- }
+ /**
+ * Find the type of an entity.
+ * @returns An integer constant representing the entity type.
+ * @see #ENTITY_UNDECLARED
+ * @see #ENTITY_INTERNAL
+ * @see #ENTITY_NDATA
+ * @see #ENTITY_TEXT
+ */
+ public int getEntityType (String ename)
+ {
+ Object entity[] = (Object[]) entityInfo.get (ename);
+ if (entity == null) {
+ return ENTITY_UNDECLARED;
+ } else {
+ return ((Integer) entity [0]).intValue ();
+ }
+ }
- // If we're in the DTD and in a context where PEs get expanded,
- // do so ... 1/14/2000 errata identify those contexts. There
- // are also spots in the internal subset where PE refs are fatal
- // errors, hence yet another flag.
- else if (c == '%' && expandPE)
- {
- if (peIsError)
- {
- error("PE reference within decl in internal subset.");
- }
- parsePEReference();
- return readCh();
- }
- column++;
- }
- return c;
- }
+ /**
+ * Return an external entity's identifier array.
+ * @param ename The name of the external entity.
+ * @return Three element array containing (in order) the entity's
+ * public identifier, system identifier, and base URI. Null if
+ * the entity was not declared as an external entity.
+ * @see #getEntityType
+ */
+ public String [] getEntityIds (String ename)
+ {
+ Object entity[] = (Object[]) entityInfo.get (ename);
+ if (entity == null) {
+ return null;
+ } else {
+ return (String []) entity [1];
+ }
+ }
- /**
- * Push a single character back onto the current input stream.
- * <p>This method usually pushes the character back onto
- * the readBuffer.
- * <p>I don't think that this would ever be called with
- * readBufferPos = 0, because the methods always reads a character
- * before unreading it, but just in case, I've added a boundary
- * condition.
- * @param c The character to push back.
- * @see #readCh
- * @see #unread (char[])
- * @see #readBuffer
- */
- private void unread(char c)
+
+ /**
+ * Return an internal entity's replacement text.
+ * @param ename The name of the internal entity.
+ * @return The entity's replacement text, or null if
+ * the entity was not declared as an internal entity.
+ * @see #getEntityType
+ */
+ public String getEntityValue (String ename)
+ {
+ Object entity[] = (Object[]) entityInfo.get (ename);
+ if (entity == null) {
+ return null;
+ } else {
+ return (String) entity [3];
+ }
+ }
+
+
+ /**
+ * Register an entity declaration for later retrieval.
+ */
+ private void setInternalEntity (String eName, String value)
throws SAXException
- {
- // Normal condition.
- if (c == '\n')
- {
- line--;
- column = -1;
- }
- if (readBufferPos > 0)
- {
- readBuffer[--readBufferPos] = c;
- }
- else
- {
- pushString(null, new Character(c).toString());
- }
+ {
+ if (skippedPE)
+ return;
+
+ if (entityInfo.get (eName) == null) {
+ Object entity[] = new Object [5];
+ entity [0] = new Integer (ENTITY_INTERNAL);
+// FIXME: shrink!! [2] useless
+ entity [3] = value;
+ entityInfo.put (eName, entity);
+ }
+ if (handler.getFeature (SAXDriver.FEATURE + "string-interning")) {
+ if ("lt" == eName || "gt" == eName || "quot" == eName
+ || "apos" == eName || "amp" == eName)
+ return;
+ } else {
+ if ("lt".equals(eName) || "gt".equals(eName) || "quot".equals(eName)
+ || "apos".equals(eName) || "amp".equals(eName))
+ return;
}
+ handler.getDeclHandler ()
+ .internalEntityDecl (eName, value);
+ }
- /**
- * Push a char array back onto the current input stream.
- * <p>NOTE: you must <em>never</em> push back characters that you
- * haven't actually read: use pushString () instead.
- * @see #readCh
- * @see #unread (char)
- * @see #readBuffer
- * @see #pushString
- */
- private void unread(char[] ch, int length)
+
+ /**
+ * Register an external entity declaration for later retrieval.
+ */
+ private void setExternalEntity (String eName, int eClass,
+ String ids [], String nName)
+ {
+ if (entityInfo.get (eName) == null) {
+ Object entity[] = new Object [5];
+ entity [0] = new Integer (eClass);
+ entity [1] = ids;
+// FIXME: shrink!! [2] no longer used, [4] irrelevant given [0]
+ entity [4] = nName;
+ entityInfo.put (eName, entity);
+ }
+ }
+
+
+ //
+ // Notations.
+ //
+
+ /**
+ * Report a notation declaration, checking for duplicates.
+ */
+ private void setNotation (String nname, String ids [])
throws SAXException
- {
- for (int i = 0; i < length; i++)
- {
- if (ch[i] == '\n')
- {
- line--;
- column = -1;
- }
- }
- if (length < readBufferPos)
- {
- readBufferPos -= length;
- }
- else
- {
- pushCharArray(null, ch, 0, length);
- }
- }
+ {
+ if (skippedPE)
+ return;
+
+ handler.notationDecl (nname, ids);
+ if (notationInfo.get (nname) == null)
+ notationInfo.put (nname, nname);
+ else
+ // VC: Unique Notation Name
+ handler.verror ("Duplicate notation name decl: " + nname);
+ }
- /**
- * Push, or skip, a new external input source.
- * The source will be some kind of parsed entity, such as a PE
- * (including the external DTD subset) or content for the body.
- *
- * @param url The java.net.URL object for the entity.
- * @see SAXDriver#resolveEntity
- * @see #pushString
- * @see #sourceType
- * @see #pushInput
- * @see #detectEncoding
- * @see #sourceType
- * @see #readBuffer
- */
- private void pushURL(boolean isPE,
- String ename,
- ExternalIdentifiers ids,
- Reader reader,
- InputStream stream,
- String encoding,
- boolean doResolve)
+
+ //
+ // Location.
+ //
+
+
+ /**
+ * Return the current line number.
+ */
+ public int getLineNumber ()
+ {
+ return line;
+ }
+
+
+ /**
+ * Return the current column number.
+ */
+ public int getColumnNumber ()
+ {
+ return column;
+ }
+
+
+ //////////////////////////////////////////////////////////////////////
+ // High-level I/O.
+ //////////////////////////////////////////////////////////////////////
+
+
+ /**
+ * Read a single character from the readBuffer.
+ * <p>The readDataChunk () method maintains the buffer.
+ * <p>If we hit the end of an entity, try to pop the stack and
+ * keep going.
+ * <p> (This approach doesn't really enforce XML's rules about
+ * entity boundaries, but this is not currently a validating
+ * parser).
+ * <p>This routine also attempts to keep track of the current
+ * position in external entities, but it's not entirely accurate.
+ * @return The next available input character.
+ * @see #unread (char)
+ * @see #readDataChunk
+ * @see #readBuffer
+ * @see #line
+ * @return The next character from the current input source.
+ */
+ private char readCh ()
throws SAXException, IOException
- {
- boolean ignoreEncoding;
- String systemId;
- InputSource source;
+ {
+ // As long as there's nothing in the
+ // read buffer, try reading more data
+ // (for an external entity) or popping
+ // the entity stack (for either).
+ while (readBufferPos >= readBufferLength) {
+ switch (sourceType) {
+ case INPUT_READER:
+ case INPUT_STREAM:
+ readDataChunk ();
+ while (readBufferLength < 1) {
+ popInput ();
+ if (readBufferLength < 1) {
+ readDataChunk ();
+ }
+ }
+ break;
+
+ default:
+
+ popInput ();
+ break;
+ }
+ }
+
+ char c = readBuffer [readBufferPos++];
+
+ if (c == '\n') {
+ line++;
+ column = 0;
+ } else {
+ if (c == '<') {
+ /* the most common return to parseContent () ... NOP */
+ } else if (((c < 0x0020 && (c != '\t') && (c != '\r')) || c > 0xFFFD)
+ || ((c >= 0x007f) && (c <= 0x009f) && (c != 0x0085)
+ && xmlVersion == XML_11))
+ error ("illegal XML character U+"
+ + Integer.toHexString (c));
+
+ // If we're in the DTD and in a context where PEs get expanded,
+ // do so ... 1/14/2000 errata identify those contexts. There
+ // are also spots in the internal subset where PE refs are fatal
+ // errors, hence yet another flag.
+ else if (c == '%' && expandPE) {
+ if (peIsError)
+ error ("PE reference within decl in internal subset.");
+ parsePEReference ();
+ return readCh ();
+ }
+ column++;
+ }
+
+ return c;
+ }
- if (!isPE)
- {
- dataBufferFlush();
- }
- scratch.setPublicId(ids.publicId);
- scratch.setSystemId(ids.systemId);
-
- // See if we should skip or substitute the entity.
- // If we're not skipping, resolving reports startEntity()
- // and updates the (handler's) stack of URIs.
- if (doResolve)
- {
- // assert (stream == null && reader == null && encoding == null)
- source = handler.resolveEntity(isPE, ename, scratch, ids.baseUri);
- if (source == null)
- {
- handler.warn("skipping entity: " + ename);
- handler.skippedEntity(ename);
- if (isPE)
- {
- skippedPE = true;
- }
- return;
- }
+ /**
+ * Push a single character back onto the current input stream.
+ * <p>This method usually pushes the character back onto
+ * the readBuffer.
+ * <p>I don't think that this would ever be called with
+ * readBufferPos = 0, because the methods always reads a character
+ * before unreading it, but just in case, I've added a boundary
+ * condition.
+ * @param c The character to push back.
+ * @see #readCh
+ * @see #unread (char[])
+ * @see #readBuffer
+ */
+ private void unread (char c)
+ throws SAXException
+ {
+ // Normal condition.
+ if (c == '\n') {
+ line--;
+ column = -1;
+ }
+ if (readBufferPos > 0) {
+ readBuffer [--readBufferPos] = c;
+ } else {
+ pushString (null, new Character (c).toString ());
+ }
+ }
- // we might be using alternate IDs/encoding
- systemId = source.getSystemId();
- // The following warning and setting systemId was deleted bcause
- // the application has the option of not setting systemId
- // provided that it has set the characte/byte stream.
- /*
- if (systemId == null) {
- handler.warn ("missing system ID, using " + ids.systemId);
- systemId = ids.systemId;
- }
- */
- }
- else
- {
- // "[document]", or "[dtd]" via getExternalSubset()
- scratch.setCharacterStream(reader);
- scratch.setByteStream(stream);
- scratch.setEncoding(encoding);
- source = scratch;
- systemId = ids.systemId;
- if (handler.stringInterning)
- {
- handler.startExternalEntity(ename, systemId,
- "[document]" == ename);
- }
- else
- {
- handler.startExternalEntity(ename, systemId,
- "[document]".equals(ename));
- }
- }
- // we may have been given I/O streams directly
- if (source.getCharacterStream() != null)
- {
- if (source.getByteStream() != null)
- error("InputSource has two streams!");
- reader = source.getCharacterStream();
- }
- else if (source.getByteStream() != null)
- {
- encoding = source.getEncoding();
- if (encoding == null)
- {
- stream = source.getByteStream();
- }
- else
- {
- try
- {
- reader = new InputStreamReader(source.getByteStream(),
- encoding);
- }
- catch (IOException e)
- {
- stream = source.getByteStream();
- }
- }
- }
- else if (systemId == null)
- {
- error("InputSource has no URI!");
- }
- scratch.setCharacterStream(null);
- scratch.setByteStream(null);
- scratch.setEncoding(null);
-
- // Push the existing status.
- pushInput(ename);
-
- // Create a new read buffer.
- // (Note the four-character margin)
- readBuffer = new char[READ_BUFFER_MAX + 4];
- readBufferPos = 0;
- readBufferLength = 0;
- readBufferOverflow = -1;
- is = null;
- line = 1;
- column = 0;
- currentByteCount = 0;
-
- // If there's an explicit character stream, just
- // ignore encoding declarations.
- if (reader != null)
- {
- sourceType = INPUT_READER;
- this.reader = reader;
- tryEncodingDecl(true);
- return;
- }
-
- // Else we handle the conversion, and need to ensure
- // it's done right.
- sourceType = INPUT_STREAM;
- if (stream != null)
- {
- is = stream;
- }
- else
- {
- // We have to open our own stream to the URL.
- URL url = new URL(systemId);
-
- externalEntity = url.openConnection();
- externalEntity.connect();
- is = externalEntity.getInputStream();
- }
-
- // If we get to here, there must be
- // an InputStream available.
- if (!is.markSupported())
- {
- is = new BufferedInputStream(is);
- }
+ /**
+ * Push a char array back onto the current input stream.
+ * <p>NOTE: you must <em>never</em> push back characters that you
+ * haven't actually read: use pushString () instead.
+ * @see #readCh
+ * @see #unread (char)
+ * @see #readBuffer
+ * @see #pushString
+ */
+ private void unread (char ch[], int length)
+ throws SAXException
+ {
+ for (int i = 0; i < length; i++) {
+ if (ch [i] == '\n') {
+ line--;
+ column = -1;
+ }
+ }
+ if (length < readBufferPos) {
+ readBufferPos -= length;
+ } else {
+ pushCharArray (null, ch, 0, length);
+ }
+ }
- // Get any external encoding label.
- if (encoding == null && externalEntity != null)
- {
- // External labels can be untrustworthy; filesystems in
- // particular often have the wrong default for content
- // that wasn't locally originated. Those we autodetect.
- if (!"file".equals(externalEntity.getURL().getProtocol()))
- {
- int temp;
-
- // application/xml;charset=something;otherAttr=...
- // ... with many variants on 'something'
- encoding = externalEntity.getContentType();
-
- // MHK code (fix for Saxon 5.5.1/007):
- // protect against encoding==null
- if (encoding == null)
- {
- temp = -1;
- }
- else
- {
- temp = encoding.indexOf("charset");
- }
-
- // RFC 2376 sez MIME text defaults to ASCII, but since the
- // JDK will create a MIME type out of thin air, we always
- // autodetect when there's no explicit charset attribute.
- if (temp < 0)
- {
- encoding = null; // autodetect
- }
- else
- {
- // only this one attribute
- if ((temp = encoding.indexOf(';')) > 0)
- {
- encoding = encoding.substring(0, temp);
- }
-
- if ((temp = encoding.indexOf('=', temp + 7)) > 0)
- {
- encoding = encoding.substring(temp + 1);
-
- // attributes can have comment fields (RFC 822)
- if ((temp = encoding.indexOf('(')) > 0)
- {
- encoding = encoding.substring(0, temp);
- }
- // ... and values may be quoted
- if ((temp = encoding.indexOf('"')) > 0)
- {
- encoding =
- encoding.substring(temp + 1,
- encoding.indexOf('"', temp + 2));
- }
- encoding.trim();
- }
- else
- {
- handler.warn("ignoring illegal MIME attribute: "
- + encoding);
- encoding = null;
- }
- }
- }
- }
-
- // if we got an external encoding label, use it ...
- if (encoding != null)
- {
- this.encoding = ENCODING_EXTERNAL;
- setupDecoding(encoding);
- ignoreEncoding = true;
-
- // ... else autodetect from first bytes.
- }
- else
- {
- detectEncoding();
- ignoreEncoding = false;
- }
- // Read any XML or text declaration.
- // If we autodetected, it may tell us the "real" encoding.
- try
- {
- tryEncodingDecl(ignoreEncoding);
- }
- catch (UnsupportedEncodingException x)
- {
- encoding = x.getMessage();
+ /**
+ * Push, or skip, a new external input source.
+ * The source will be some kind of parsed entity, such as a PE
+ * (including the external DTD subset) or content for the body.
+ *
+ * @param url The java.net.URL object for the entity.
+ * @see SAXDriver#resolveEntity
+ * @see #pushString
+ * @see #sourceType
+ * @see #pushInput
+ * @see #detectEncoding
+ * @see #sourceType
+ * @see #readBuffer
+ */
+ private void pushURL (
+ boolean isPE,
+ String ename,
+ String ids [], // public, system, baseURI
+ Reader reader,
+ InputStream stream,
+ String encoding,
+ boolean doResolve
+ ) throws SAXException, IOException
+ {
+ boolean ignoreEncoding;
+ String systemId;
+ InputSource source;
+
+ if (!isPE)
+ dataBufferFlush ();
+
+ scratch.setPublicId (ids [0]);
+ scratch.setSystemId (ids [1]);
+
+ // See if we should skip or substitute the entity.
+ // If we're not skipping, resolving reports startEntity()
+ // and updates the (handler's) stack of URIs.
+ if (doResolve) {
+ // assert (stream == null && reader == null && encoding == null)
+ source = handler.resolveEntity (isPE, ename, scratch, ids [2]);
+ if (source == null) {
+ handler.warn ("skipping entity: " + ename);
+ handler.skippedEntity (ename);
+ if (isPE)
+ skippedPE = true;
+ return;
+ }
+
+ // we might be using alternate IDs/encoding
+ systemId = source.getSystemId ();
+ // The following warning and setting systemId was deleted bcause
+ // the application has the option of not setting systemId
+ // provided that it has set the characte/byte stream.
+ /*
+ if (systemId == null) {
+ handler.warn ("missing system ID, using " + ids [1]);
+ systemId = ids [1];
+ }
+ */
+ } else {
+ // "[document]", or "[dtd]" via getExternalSubset()
+ scratch.setCharacterStream (reader);
+ scratch.setByteStream (stream);
+ scratch.setEncoding (encoding);
+ source = scratch;
+ systemId = ids [1];
+ if (handler.getFeature (SAXDriver.FEATURE + "string-interning")) {
+ handler.startExternalEntity (ename, systemId,
+ "[document]" == ename);
+ } else {
+ handler.startExternalEntity (ename, systemId,
+ "[document]".equals(ename));
+ }
+ }
+
+ // we may have been given I/O streams directly
+ if (source.getCharacterStream () != null) {
+ if (source.getByteStream () != null)
+ error ("InputSource has two streams!");
+ reader = source.getCharacterStream ();
+ } else if (source.getByteStream () != null) {
+ encoding = source.getEncoding ();
+ if (encoding == null)
+ stream = source.getByteStream ();
+ else try {
+ reader = new InputStreamReader (
+ source.getByteStream (),
+ encoding);
+ } catch (IOException e) {
+ stream = source.getByteStream ();
+ }
+ } else if (systemId == null)
+ error ("InputSource has no URI!");
+ scratch.setCharacterStream (null);
+ scratch.setByteStream (null);
+ scratch.setEncoding (null);
+
+ // Push the existing status.
+ pushInput (ename);
+
+ // Create a new read buffer.
+ // (Note the four-character margin)
+ readBuffer = new char [READ_BUFFER_MAX + 4];
+ readBufferPos = 0;
+ readBufferLength = 0;
+ readBufferOverflow = -1;
+ is = null;
+ line = 1;
+ column = 0;
+ currentByteCount = 0;
+
+ // If there's an explicit character stream, just
+ // ignore encoding declarations.
+ if (reader != null) {
+ sourceType = INPUT_READER;
+ this.reader = reader;
+ tryEncodingDecl (true);
+ return;
+ }
+
+ // Else we handle the conversion, and need to ensure
+ // it's done right.
+ sourceType = INPUT_STREAM;
+ if (stream != null) {
+ is = stream;
+ } else {
+ // We have to open our own stream to the URL.
+ URL url = new URL (systemId);
+
+ externalEntity = url.openConnection ();
+ externalEntity.connect ();
+ is = externalEntity.getInputStream ();
+ }
+
+ // If we get to here, there must be
+ // an InputStream available.
+ if (!is.markSupported ()) {
+ is = new BufferedInputStream (is);
+ }
+
+ // Get any external encoding label.
+ if (encoding == null && externalEntity != null) {
+ // External labels can be untrustworthy; filesystems in
+ // particular often have the wrong default for content
+ // that wasn't locally originated. Those we autodetect.
+ if (!"file".equals (externalEntity.getURL ().getProtocol ())) {
+ int temp;
+
+ // application/xml;charset=something;otherAttr=...
+ // ... with many variants on 'something'
+ encoding = externalEntity.getContentType ();
+
+ // MHK code (fix for Saxon 5.5.1/007):
+ // protect against encoding==null
+ if (encoding==null) {
+ temp = -1;
+ } else {
+ temp = encoding.indexOf ("charset");
+ }
+
+ // RFC 2376 sez MIME text defaults to ASCII, but since the
+ // JDK will create a MIME type out of thin air, we always
+ // autodetect when there's no explicit charset attribute.
+ if (temp < 0)
+ encoding = null; // autodetect
+ else {
+ // only this one attribute
+ if ((temp = encoding.indexOf (';')) > 0)
+ encoding = encoding.substring (0, temp);
+
+ if ((temp = encoding.indexOf ('=', temp + 7)) > 0) {
+ encoding = encoding.substring (temp + 1);
+
+ // attributes can have comment fields (RFC 822)
+ if ((temp = encoding.indexOf ('(')) > 0)
+ encoding = encoding.substring (0, temp);
+ // ... and values may be quoted
+ if ((temp = encoding.indexOf ('"')) > 0)
+ encoding = encoding.substring (temp + 1,
+ encoding.indexOf ('"', temp + 2));
+ encoding.trim ();
+ } else {
+ handler.warn ("ignoring illegal MIME attribute: "
+ + encoding);
+ encoding = null;
+ }
+ }
+ }
+ }
+
+ // if we got an external encoding label, use it ...
+ if (encoding != null) {
+ this.encoding = ENCODING_EXTERNAL;
+ setupDecoding (encoding);
+ ignoreEncoding = true;
+
+ // ... else autodetect from first bytes.
+ } else {
+ detectEncoding ();
+ ignoreEncoding = false;
+ }
+
+ // Read any XML or text declaration.
+ // If we autodetected, it may tell us the "real" encoding.
+ try {
+ tryEncodingDecl (ignoreEncoding);
+ } catch (UnsupportedEncodingException x) {
+ encoding = x.getMessage ();
+
+ // if we don't handle the declared encoding,
+ // try letting a JVM InputStreamReader do it
+ try {
+ if (sourceType != INPUT_STREAM)
+ throw x;
+
+ is.reset ();
+ readBufferPos = 0;
+ readBufferLength = 0;
+ readBufferOverflow = -1;
+ line = 1;
+ currentByteCount = column = 0;
+
+ sourceType = INPUT_READER;
+ this.reader = new InputStreamReader (is, encoding);
+ is = null;
+
+ tryEncodingDecl (true);
+
+ } catch (IOException e) {
+ error ("unsupported text encoding",
+ encoding,
+ null);
+ }
+ }
+ }
- // if we don't handle the declared encoding,
- // try letting a JVM InputStreamReader do it
- try
- {
- if (sourceType != INPUT_STREAM)
- {
- throw x;
- }
-
- is.reset();
- readBufferPos = 0;
- readBufferLength = 0;
- readBufferOverflow = -1;
- line = 1;
- currentByteCount = column = 0;
-
- sourceType = INPUT_READER;
- this.reader = new InputStreamReader(is, encoding);
- is = null;
-
- tryEncodingDecl(true);
-
- }
- catch (IOException e)
- {
- error("unsupported text encoding",
- encoding,
- null);
- }
- }
- }
- /**
- * Check for an encoding declaration. This is the second part of the
- * XML encoding autodetection algorithm, relying on detectEncoding to
- * get to the point that this part can read any encoding declaration
- * in the document (using only US-ASCII characters).
- *
- * <p> Because this part starts to fill parser buffers with this data,
- * it's tricky to setup a reader so that Java's built-in decoders can be
- * used for the character encodings that aren't built in to this parser
- * (such as EUC-JP, KOI8-R, Big5, etc).
- *
- * @return any encoding in the declaration, uppercased; or null
- * @see detectEncoding
- */
- private String tryEncodingDecl(boolean ignoreEncoding)
+ /**
+ * Check for an encoding declaration. This is the second part of the
+ * XML encoding autodetection algorithm, relying on detectEncoding to
+ * get to the point that this part can read any encoding declaration
+ * in the document (using only US-ASCII characters).
+ *
+
* <p> Because this part starts to fill parser buffers with this data,
+ * it's tricky to setup a reader so that Java's built-in decoders can be
+ * used for the character encodings that aren't built in to this parser
+ * (such as EUC-JP, KOI8-R, Big5, etc).
+ *
+ * @return any encoding in the declaration, uppercased; or null
+ * @see detectEncoding
+ */
+ private String tryEncodingDecl (boolean ignoreEncoding)
throws SAXException, IOException
- {
- // Read the XML/text declaration.
- if (tryRead("<?xml"))
- {
- if (tryWhitespace())
- {
- if (inputStack.size() > 0)
- {
- return parseTextDecl(ignoreEncoding);
- }
- else
- {
- return parseXMLDecl(ignoreEncoding);
- }
- }
- else
- {
- // <?xml-stylesheet ...?> or similar
- unread('l');
- unread('m');
- unread('x');
- unread('?');
- unread('<');
- }
- }
- return null;
- }
+ {
+ // Read the XML/text declaration.
+ if (tryRead ("<?xml")) {
+ if (tryWhitespace ()) {
+ if (inputStack.size () > 0) {
+ return parseTextDecl (ignoreEncoding);
+ } else {
+ return parseXMLDecl (ignoreEncoding);
+ }
+ } else {
+ // <?xml-stylesheet ...?> or similar
+ unread ('l');
+ unread ('m');
+ unread ('x');
+ unread ('?');
+ unread ('<');
+ }
+ }
+ return null;
+ }
- /**
- * Attempt to detect the encoding of an entity.
- * <p>The trick here (as suggested in the XML standard) is that
- * any entity not in UTF-8, or in UCS-2 with a byte-order mark,
- * <b>must</b> begin with an XML declaration or an encoding
- * declaration; we simply have to look for "<?xml" in various
- * encodings.
- * <p>This method has no way to distinguish among 8-bit encodings.
- * Instead, it sets up for UTF-8, then (possibly) revises its assumption
- * later in setupDecoding (). Any ASCII-derived 8-bit encoding
- * should work, but most will be rejected later by setupDecoding ().
- * @see #tryEncoding (byte[], byte, byte, byte, byte)
- * @see #tryEncoding (byte[], byte, byte)
- * @see #setupDecoding
- */
- private void detectEncoding()
- throws SAXException, IOException
- {
- byte[] signature = new byte[4];
- // Read the first four bytes for
- // autodetection.
- is.mark(4);
- is.read(signature);
- is.reset();
+ /**
+ * Attempt to detect the encoding of an entity.
+ * <p>The trick here (as suggested in the XML standard) is that
+ * any entity not in UTF-8, or in UCS-2 with a byte-order mark,
+ * <b>must</b> begin with an XML declaration or an encoding
+ * declaration; we simply have to look for "<?xml" in various
+ * encodings.
+ * <p>This method has no way to distinguish among 8-bit encodings.
+ * Instead, it sets up for UTF-8, then (possibly) revises its assumption
+ * later in setupDecoding (). Any ASCII-derived 8-bit encoding
+ * should work, but most will be rejected later by setupDecoding ().
+ * @see #tryEncoding (byte[], byte, byte, byte, byte)
+ * @see #tryEncoding (byte[], byte, byte)
+ * @see #setupDecoding
+ */
+ private void detectEncoding ()
+ throws SAXException, IOException
+ {
+ byte signature[] = new byte [4];
+
+ // Read the first four bytes for
+ // autodetection.
+ is.mark (4);
+ is.read (signature);
+ is.reset ();
+
+ //
+ // FIRST: four byte encodings (who uses these?)
+ //
+ if (tryEncoding (signature, (byte) 0x00, (byte) 0x00,
+ (byte) 0x00, (byte) 0x3c)) {
+ // UCS-4 must begin with "<?xml"
+ // 0x00 0x00 0x00 0x3c: UCS-4, big-endian (1234)
+ // "UTF-32BE"
+ encoding = ENCODING_UCS_4_1234;
+
+ } else if (tryEncoding (signature, (byte) 0x3c, (byte) 0x00,
+ (byte) 0x00, (byte) 0x00)) {
+ // 0x3c 0x00 0x00 0x00: UCS-4, little-endian (4321)
+ // "UTF-32LE"
+ encoding = ENCODING_UCS_4_4321;
+
+ } else if (tryEncoding (signature, (byte) 0x00, (byte) 0x00,
+ (byte) 0x3c, (byte) 0x00)) {
+ // 0x00 0x00 0x3c 0x00: UCS-4, unusual (2143)
+ encoding = ENCODING_UCS_4_2143;
+
+ } else if (tryEncoding (signature, (byte) 0x00, (byte) 0x3c,
+ (byte) 0x00, (byte) 0x00)) {
+ // 0x00 0x3c 0x00 0x00: UCS-4, unusual (3421)
+ encoding = ENCODING_UCS_4_3412;
+
+ // 00 00 fe ff UCS_4_1234 (with BOM)
+ // ff fe 00 00 UCS_4_4321 (with BOM)
+ }
+
+ //
+ // SECOND: two byte encodings
+ // note ... with 1/14/2000 errata the XML spec identifies some
+ // more "broken UTF-16" autodetection cases, with no XML decl,
+ // which we don't handle here (that's legal too).
+ //
+ else if (tryEncoding (signature, (byte) 0xfe, (byte) 0xff)) {
+ // UCS-2 with a byte-order marker. (UTF-16)
+ // 0xfe 0xff: UCS-2, big-endian (12)
+ encoding = ENCODING_UCS_2_12;
+ is.read (); is.read ();
+
+ } else if (tryEncoding (signature, (byte) 0xff, (byte) 0xfe)) {
+ // UCS-2 with a byte-order marker. (UTF-16)
+ // 0xff 0xfe: UCS-2, little-endian (21)
+ encoding = ENCODING_UCS_2_21;
+ is.read (); is.read ();
+
+ } else if (tryEncoding (signature, (byte) 0x00, (byte) 0x3c,
+ (byte) 0x00, (byte) 0x3f)) {
+ // UTF-16BE (otherwise, malformed UTF-16)
+ // 0x00 0x3c 0x00 0x3f: UCS-2, big-endian, no byte-order mark
+ encoding = ENCODING_UCS_2_12;
+ error ("no byte-order mark for UCS-2 entity");
+
+ } else if (tryEncoding (signature, (byte) 0x3c, (byte) 0x00,
+ (byte) 0x3f, (byte) 0x00)) {
+ // UTF-16LE (otherwise, malformed UTF-16)
+ // 0x3c 0x00 0x3f 0x00: UCS-2, little-endian, no byte-order mark
+ encoding = ENCODING_UCS_2_21;
+ error ("no byte-order mark for UCS-2 entity");
+ }
+
+ //
+ // THIRD: ASCII-derived encodings, fixed and variable lengths
+ //
+ else if (tryEncoding (signature, (byte) 0x3c, (byte) 0x3f,
+ (byte) 0x78, (byte) 0x6d)) {
+ // ASCII derived
+ // 0x3c 0x3f 0x78 0x6d: UTF-8 or other 8-bit markup (read ENCODING)
+ encoding = ENCODING_UTF_8;
+ prefetchASCIIEncodingDecl ();
+
+ } else if (signature [0] == (byte) 0xef
+ && signature [1] == (byte) 0xbb
+ && signature [2] == (byte) 0xbf) {
+ // 0xef 0xbb 0xbf: UTF-8 BOM (not part of document text)
+ // this un-needed notion slipped into XML 2nd ed through a
+ // "non-normative" erratum; now required by MSFT and UDDI,
+ // and E22 made it normative.
+ encoding = ENCODING_UTF_8;
+ is.read (); is.read (); is.read ();
+
+ } else {
+ // 4c 6f a7 94 ... we don't understand EBCDIC flavors
+ // ... but we COULD at least kick in some fixed code page
+
+ // (default) UTF-8 without encoding/XML declaration
+ encoding = ENCODING_UTF_8;
+ }
+ }
- //
- // FIRST: four byte encodings (who uses these?)
- //
- if (tryEncoding(signature, (byte) 0x00, (byte) 0x00,
- (byte) 0x00, (byte) 0x3c))
- {
- // UCS-4 must begin with "<?xml"
- // 0x00 0x00 0x00 0x3c: UCS-4, big-endian (1234)
- // "UTF-32BE"
- encoding = ENCODING_UCS_4_1234;
- }
- else if (tryEncoding(signature, (byte) 0x3c, (byte) 0x00,
- (byte) 0x00, (byte) 0x00))
- {
- // 0x3c 0x00 0x00 0x00: UCS-4, little-endian (4321)
- // "UTF-32LE"
- encoding = ENCODING_UCS_4_4321;
- }
- else if (tryEncoding(signature, (byte) 0x00, (byte) 0x00,
- (byte) 0x3c, (byte) 0x00))
- {
- // 0x00 0x00 0x3c 0x00: UCS-4, unusual (2143)
- encoding = ENCODING_UCS_4_2143;
- }
- else if (tryEncoding(signature, (byte) 0x00, (byte) 0x3c,
- (byte) 0x00, (byte) 0x00))
- {
- // 0x00 0x3c 0x00 0x00: UCS-4, unusual (3421)
- encoding = ENCODING_UCS_4_3412;
-
- // 00 00 fe ff UCS_4_1234 (with BOM)
- // ff fe 00 00 UCS_4_4321 (with BOM)
- }
- //
- // SECOND: two byte encodings
- // note ... with 1/14/2000 errata the XML spec identifies some
- // more "broken UTF-16" autodetection cases, with no XML decl,
- // which we don't handle here (that's legal too).
- //
- else if (tryEncoding(signature, (byte) 0xfe, (byte) 0xff))
- {
- // UCS-2 with a byte-order marker. (UTF-16)
- // 0xfe 0xff: UCS-2, big-endian (12)
- encoding = ENCODING_UCS_2_12;
- is.read(); is.read();
- }
- else if (tryEncoding(signature, (byte) 0xff, (byte) 0xfe))
- {
- // UCS-2 with a byte-order marker. (UTF-16)
- // 0xff 0xfe: UCS-2, little-endian (21)
- encoding = ENCODING_UCS_2_21;
- is.read(); is.read();
- }
- else if (tryEncoding(signature, (byte) 0x00, (byte) 0x3c,
- (byte) 0x00, (byte) 0x3f))
- {
- // UTF-16BE (otherwise, malformed UTF-16)
- // 0x00 0x3c 0x00 0x3f: UCS-2, big-endian, no byte-order mark
- encoding = ENCODING_UCS_2_12;
- error("no byte-order mark for UCS-2 entity");
- }
- else if (tryEncoding(signature, (byte) 0x3c, (byte) 0x00,
- (byte) 0x3f, (byte) 0x00))
- {
- // UTF-16LE (otherwise, malformed UTF-16)
- // 0x3c 0x00 0x3f 0x00: UCS-2, little-endian, no byte-order mark
- encoding = ENCODING_UCS_2_21;
- error("no byte-order mark for UCS-2 entity");
- }
+ /**
+ * Check for a four-byte signature.
+ * <p>Utility routine for detectEncoding ().
+ * <p>Always looks for some part of "<?XML" in a specific encoding.
+ * @param sig The first four bytes read.
+ * @param b1 The first byte of the signature
+ * @param b2 The second byte of the signature
+ * @param b3 The third byte of the signature
+ * @param b4 The fourth byte of the signature
+ * @see #detectEncoding
+ */
+ private static boolean tryEncoding (
+ byte sig[], byte b1, byte b2, byte b3, byte b4)
+ {
+ return (sig [0] == b1 && sig [1] == b2
+ && sig [2] == b3 && sig [3] == b4);
+ }
- //
- // THIRD: ASCII-derived encodings, fixed and variable lengths
- //
- else if (tryEncoding(signature, (byte) 0x3c, (byte) 0x3f,
- (byte) 0x78, (byte) 0x6d))
- {
- // ASCII derived
- // 0x3c 0x3f 0x78 0x6d: UTF-8 or other 8-bit markup (read ENCODING)
- encoding = ENCODING_UTF_8;
- prefetchASCIIEncodingDecl();
- }
- else if (signature[0] == (byte) 0xef
- && signature[1] == (byte) 0xbb
- && signature[2] == (byte) 0xbf)
- {
- // 0xef 0xbb 0xbf: UTF-8 BOM (not part of document text)
- // this un-needed notion slipped into XML 2nd ed through a
- // "non-normative" erratum; now required by MSFT and UDDI,
- // and E22 made it normative.
- encoding = ENCODING_UTF_8;
- is.read(); is.read(); is.read();
- }
- else
- {
- // 4c 6f a7 94 ... we don't understand EBCDIC flavors
- // ... but we COULD at least kick in some fixed code page
-
- // (default) UTF-8 without encoding/XML declaration
- encoding = ENCODING_UTF_8;
- }
- }
- /**
- * Check for a four-byte signature.
- * <p>Utility routine for detectEncoding ().
- * <p>Always looks for some part of "<?XML" in a specific encoding.
- * @param sig The first four bytes read.
- * @param b1 The first byte of the signature
- * @param b2 The second byte of the signature
- * @param b3 The third byte of the signature
- * @param b4 The fourth byte of the signature
- * @see #detectEncoding
- */
- private static boolean tryEncoding(byte[] sig, byte b1, byte b2,
- byte b3, byte b4)
- {
- return (sig[0] == b1 && sig[1] == b2
- && sig[2] == b3 && sig[3] == b4);
- }
+ /**
+ * Check for a two-byte signature.
+ * <p>Looks for a UCS-2 byte-order mark.
+ * <p>Utility routine for detectEncoding ().
+ * @param sig The first four bytes read.
+ * @param b1 The first byte of the signature
+ * @param b2 The second byte of the signature
+ * @see #detectEncoding
+ */
+ private static boolean tryEncoding (byte sig[], byte b1, byte b2)
+ {
+ return ((sig [0] == b1) && (sig [1] == b2));
+ }
- /**
- * Check for a two-byte signature.
- * <p>Looks for a UCS-2 byte-order mark.
- * <p>Utility routine for detectEncoding ().
- * @param sig The first four bytes read.
- * @param b1 The first byte of the signature
- * @param b2 The second byte of the signature
- * @see #detectEncoding
- */
- private static boolean tryEncoding(byte[] sig, byte b1, byte b2)
- {
- return ((sig[0] == b1) && (sig[1] == b2));
- }
- /**
- * This method pushes a string back onto input.
- * <p>It is useful either as the expansion of an internal entity,
- * or for backtracking during the parse.
- * <p>Call pushCharArray () to do the actual work.
- * @param s The string to push back onto input.
- * @see #pushCharArray
- */
- private void pushString(String ename, String s)
+ /**
+ * This method pushes a string back onto input.
+
* <p>It is useful either as the expansion of an internal entity,
+ * or for backtracking during the parse.
+
* <p>Call pushCharArray () to do the actual work.
+ * @param s The string to push back onto input.
+ * @see #pushCharArray
+ */
+ private void pushString (String ename, String s)
throws SAXException
- {
- char[] ch = s.toCharArray();
- pushCharArray(ename, ch, 0, ch.length);
- }
+ {
+ char ch[] = s.toCharArray ();
+ pushCharArray (ename, ch, 0, ch.length);
+ }
- /**
- * Push a new internal input source.
- * <p>This method is useful for expanding an internal entity,
- * or for unreading a string of characters. It creates a new
- * readBuffer containing the characters in the array, instead
- * of characters converted from an input byte stream.
- * @param ch The char array to push.
- * @see #pushString
- * @see #pushURL
- * @see #readBuffer
- * @see #sourceType
- * @see #pushInput
- */
- private void pushCharArray(String ename, char[] ch, int start, int length)
+
+ /**
+ * Push a new internal input source.
+ * <p>This method is useful for expanding an internal entity,
+ * or for unreading a string of characters. It creates a new
+ * readBuffer containing the characters in the array, instead
+ * of characters converted from an input byte stream.
+ * @param ch The char array to push.
+ * @see #pushString
+ * @see #pushURL
+ * @see #readBuffer
+ * @see #sourceType
+ * @see #pushInput
+ */
+ private void pushCharArray (String ename, char ch[], int start, int length)
throws SAXException
- {
- // Push the existing status
- pushInput(ename);
- if (ename != null && doReport)
- {
- dataBufferFlush();
- handler.startInternalEntity(ename);
- }
- sourceType = INPUT_INTERNAL;
- readBuffer = ch;
- readBufferPos = start;
- readBufferLength = length;
- readBufferOverflow = -1;
- }
+ {
+ // Push the existing status
+ pushInput (ename);
+ if (ename != null && doReport) {
+ dataBufferFlush ();
+ handler.startInternalEntity (ename);
+ }
+ sourceType = INPUT_INTERNAL;
+ readBuffer = ch;
+ readBufferPos = start;
+ readBufferLength = length;
+ readBufferOverflow = -1;
+ }
- /**
- * Save the current input source onto the stack.
- * <p>This method saves all of the global variables associated with
- * the current input source, so that they can be restored when a new
- * input source has finished. It also tests for entity recursion.
- * <p>The method saves the following global variables onto a stack
- * using a fixed-length array:
- * <ol>
- * <li>sourceType
- * <li>externalEntity
- * <li>readBuffer
- * <li>readBufferPos
- * <li>readBufferLength
- * <li>line
- * <li>encoding
- * </ol>
- * @param ename The name of the entity (if any) causing the new input.
- * @see #popInput
- * @see #sourceType
- * @see #externalEntity
- * @see #readBuffer
- * @see #readBufferPos
- * @see #readBufferLength
- * @see #line
- * @see #encoding
- */
- private void pushInput(String ename)
+
+ /**
+ * Save the current input source onto the stack.
+ * <p>This method saves all of the global variables associated with
+ * the current input source, so that they can be restored when a new
+ * input source has finished. It also tests for entity recursion.
+ * <p>The method saves the following global variables onto a stack
+ * using a fixed-length array:
+ * <ol>
+ * <li>sourceType
+ * <li>externalEntity
+ * <li>readBuffer
+ * <li>readBufferPos
+ * <li>readBufferLength
+ * <li>line
+ * <li>encoding
+ * </ol>
+ * @param ename The name of the entity (if any) causing the new input.
+ * @see #popInput
+ * @see #sourceType
+ * @see #externalEntity
+ * @see #readBuffer
+ * @see #readBufferPos
+ * @see #readBufferLength
+ * @see #line
+ * @see #encoding
+ */
+ private void pushInput (String ename)
throws SAXException
- {
- // Check for entity recursion.
- if (ename != null)
- {
- Iterator entities = entityStack.iterator();
- while (entities.hasNext())
- {
- String e = (String) entities.next();
- if (e != null && e == ename)
- {
- error("recursive reference to entity", ename, null);
- }
- }
- }
- entityStack.addLast(ename);
-
- // Don't bother if there is no current input.
- if (sourceType == INPUT_NONE)
- {
- return;
- }
-
- // Set up a snapshot of the current
- // input source.
- Input input = new Input();
-
- input.sourceType = sourceType;
- input.externalEntity = externalEntity;
- input.readBuffer = readBuffer;
- input.readBufferPos = readBufferPos;
- input.readBufferLength = readBufferLength;
- input.line = line;
- input.encoding = encoding;
- input.readBufferOverflow = readBufferOverflow;
- input.is = is;
- input.currentByteCount = currentByteCount;
- input.column = column;
- input.reader = reader;
-
- // Push it onto the stack.
- inputStack.addLast(input);
- }
+ {
+ // Check for entity recursion.
+ if (ename != null) {
+ Enumeration entities = entityStack.elements ();
+ while (entities.hasMoreElements ()) {
+ String e = (String) entities.nextElement ();
+ if (e != null && e == ename) {
+ error ("recursive reference to entity", ename, null);
+ }
+ }
+ }
+ entityStack.push (ename);
+
+ // Don't bother if there is no current input.
+ if (sourceType == INPUT_NONE) {
+ return;
+ }
+
+ // Set up a snapshot of the current
+ // input source.
+ Object input[] = new Object [12];
+
+ input [0] = new Integer (sourceType);
+ input [1] = externalEntity;
+ input [2] = readBuffer;
+ input [3] = new Integer (readBufferPos);
+ input [4] = new Integer (readBufferLength);
+ input [5] = new Integer (line);
+ input [6] = new Integer (encoding);
+ input [7] = new Integer (readBufferOverflow);
+ input [8] = is;
+ input [9] = new Integer (currentByteCount);
+ input [10] = new Integer (column);
+ input [11] = reader;
+
+ // Push it onto the stack.
+ inputStack.push (input);
+ }
- /**
- * Restore a previous input source.
- * <p>This method restores all of the global variables associated with
- * the current input source.
- * @exception java.io.EOFException
- * If there are no more entries on the input stack.
- * @see #pushInput
- * @see #sourceType
- * @see #externalEntity
- * @see #readBuffer
- * @see #readBufferPos
- * @see #readBufferLength
- * @see #line
- * @see #encoding
- */
- private void popInput()
- throws SAXException, IOException
- {
- String ename = (String) entityStack.removeLast();
- if (ename != null && doReport)
- {
- dataBufferFlush();
- }
- switch (sourceType)
- {
- case INPUT_STREAM:
- handler.endExternalEntity(ename);
- is.close();
- break;
- case INPUT_READER:
- handler.endExternalEntity(ename);
- reader.close();
- break;
- case INPUT_INTERNAL:
- if (ename != null && doReport)
- {
- handler.endInternalEntity(ename);
- }
- break;
- }
+ /**
+ * Restore a previous input source.
+ * <p>This method restores all of the global variables associated with
+ * the current input source.
+ * @exception java.io.EOFException
+ * If there are no more entries on the input stack.
+ * @see #pushInput
+ * @see #sourceType
+ * @see #externalEntity
+ * @see #readBuffer
+ * @see #readBufferPos
+ * @see #readBufferLength
+ * @see #line
+ * @see #encoding
+ */
+ private void popInput ()
+ throws SAXException, IOException
+ {
+ String ename = (String) entityStack.pop ();
+
+ if (ename != null && doReport)
+ dataBufferFlush ();
+ switch (sourceType) {
+ case INPUT_STREAM:
+ handler.endExternalEntity (ename);
+ is.close ();
+ break;
+ case INPUT_READER:
+ handler.endExternalEntity (ename);
+ reader.close ();
+ break;
+ case INPUT_INTERNAL:
+ if (ename != null && doReport)
+ handler.endInternalEntity (ename);
+ break;
+ }
+
+ // Throw an EOFException if there
+ // is nothing else to pop.
+ if (inputStack.isEmpty ()) {
+ throw new EOFException ("no more input");
+ }
+
+ Object input [] = (Object[]) inputStack.pop ();
+
+ sourceType = ((Integer) input [0]).intValue ();
+ externalEntity = (URLConnection) input [1];
+ readBuffer = (char[]) input [2];
+ readBufferPos = ((Integer) input [3]).intValue ();
+ readBufferLength = ((Integer) input [4]).intValue ();
+ line = ((Integer) input [5]).intValue ();
+ encoding = ((Integer) input [6]).intValue ();
+ readBufferOverflow = ((Integer) input [7]).intValue ();
+ is = (InputStream) input [8];
+ currentByteCount = ((Integer) input [9]).intValue ();
+ column = ((Integer) input [10]).intValue ();
+ reader = (Reader) input [11];
+ }
- // Throw an EOFException if there
- // is nothing else to pop.
- if (inputStack.isEmpty())
- {
- throw new EOFException("no more input");
- }
- Input input = (Input) inputStack.removeLast();
-
- sourceType = input.sourceType;
- externalEntity = input.externalEntity;
- readBuffer = input.readBuffer;
- readBufferPos = input.readBufferPos;
- readBufferLength = input.readBufferLength;
- line = input.line;
- encoding = input.encoding;
- readBufferOverflow = input.readBufferOverflow;
- is = input.is;
- currentByteCount = input.currentByteCount;
- column = input.column;
- reader = input.reader;
- }
-
- /**
- * Return true if we can read the expected character.
- * <p>Note that the character will be removed from the input stream
- * on success, but will be put back on failure. Do not attempt to
- * read the character again if the method succeeds.
- * @param delim The character that should appear next. For a
- * insensitive match, you must supply this in upper-case.
- * @return true if the character was successfully read, or false if
- * it was not.
- * @see #tryRead (String)
- */
- private boolean tryRead(char delim)
+ /**
+ * Return true if we can read the expected character.
+ * <p>Note that the character will be removed from the input stream
+ * on success, but will be put back on failure. Do not attempt to
+ * read the character again if the method succeeds.
+ * @param delim The character that should appear next. For a
+ * insensitive match, you must supply this in upper-case.
+ * @return true if the character was successfully read, or false if
+ * it was not.
+ * @see #tryRead (String)
+ */
+ private boolean tryRead (char delim)
throws SAXException, IOException
- {
- char c;
-
- // Read the character
- c = readCh();
-
- // Test for a match, and push the character
- // back if the match fails.
- if (c == delim)
- {
- return true;
- }
- else
- {
- unread(c);
- return false;
- }
- }
+ {
+ char c;
+
+ // Read the character
+ c = readCh ();
+
+ // Test for a match, and push the character
+ // back if the match fails.
+ if (c == delim) {
+ return true;
+ } else {
+ unread (c);
+ return false;
+ }
+ }
- /**
- * Return true if we can read the expected string.
- * <p>This is simply a convenience method.
- * <p>Note that the string will be removed from the input stream
- * on success, but will be put back on failure. Do not attempt to
- * read the string again if the method succeeds.
- * <p>This method will push back a character rather than an
- * array whenever possible (probably the majority of cases).
- * @param delim The string that should appear next.
- * @return true if the string was successfully read, or false if
- * it was not.
- * @see #tryRead (char)
- */
- private boolean tryRead(String delim)
+
+ /**
+ * Return true if we can read the expected string.
+ * <p>This is simply a convenience method.
+ * <p>Note that the string will be removed from the input stream
+ * on success, but will be put back on failure. Do not attempt to
+ * read the string again if the method succeeds.
+ * <p>This method will push back a character rather than an
+ * array whenever possible (probably the majority of cases).
+ * @param delim The string that should appear next.
+ * @return true if the string was successfully read, or false if
+ * it was not.
+ * @see #tryRead (char)
+ */
+ private boolean tryRead (String delim)
throws SAXException, IOException
- {
- return tryRead(delim.toCharArray());
- }
+ {
+ return tryRead (delim.toCharArray ());
+ }
- private boolean tryRead(char[] ch)
+ private boolean tryRead (char ch [])
throws SAXException, IOException
- {
- char c;
+ {
+ char c;
+
+ // Compare the input, character-
+ // by character.
+
+ for (int i = 0; i < ch.length; i++) {
+ c = readCh ();
+ if (c != ch [i]) {
+ unread (c);
+ if (i != 0) {
+ unread (ch, i);
+ }
+ return false;
+ }
+ }
+ return true;
+ }
- // Compare the input, character-
- // by character.
-
- for (int i = 0; i < ch.length; i++)
- {
- c = readCh();
- if (c != ch[i])
- {
- unread(c);
- if (i != 0)
- {
- unread(ch, i);
- }
- return false;
- }
- }
- return true;
- }
- /**
- * Return true if we can read some whitespace.
- * <p>This is simply a convenience method.
- * <p>This method will push back a character rather than an
- * array whenever possible (probably the majority of cases).
- * @return true if whitespace was found.
- */
- private boolean tryWhitespace()
+
+ /**
+ * Return true if we can read some whitespace.
+ * <p>This is simply a convenience method.
+ * <p>This method will push back a character rather than an
+ * array whenever possible (probably the majority of cases).
+ * @return true if whitespace was found.
+ */
+ private boolean tryWhitespace ()
throws SAXException, IOException
- {
- char c;
- c = readCh();
- if (isWhitespace(c))
- {
- skipWhitespace();
- return true;
- }
- else
- {
- unread(c);
- return false;
- }
- }
-
- /**
- * Read all data until we find the specified string.
- * This is useful for scanning CDATA sections and PIs.
- * <p>This is inefficient right now, since it calls tryRead ()
- * for every character.
- * @param delim The string delimiter
- * @see #tryRead (String, boolean)
- * @see #readCh
- */
- private void parseUntil(String delim)
+ {
+ char c;
+ c = readCh ();
+ if (isWhitespace (c)) {
+ skipWhitespace ();
+ return true;
+ } else {
+ unread (c);
+ return false;
+ }
+ }
+
+
+ /**
+ * Read all data until we find the specified string.
+ * This is useful for scanning CDATA sections and PIs.
+ * <p>This is inefficient right now, since it calls tryRead ()
+ * for every character.
+ * @param delim The string delimiter
+ * @see #tryRead (String, boolean)
+ * @see #readCh
+ */
+ private void parseUntil (String delim)
throws SAXException, IOException
- {
- parseUntil(delim.toCharArray());
- }
+ {
+ parseUntil (delim.toCharArray ());
+ }
- private void parseUntil(char[] delim)
+ private void parseUntil (char delim [])
throws SAXException, IOException
- {
- char c;
- int startLine = line;
-
- try
- {
- while (!tryRead(delim))
- {
- c = readCh();
- dataBufferAppend(c);
- }
- }
- catch (EOFException e)
- {
- error("end of input while looking for delimiter "
- + "(started on line " + startLine
- + ')', null, new String(delim));
- }
- }
+ {
+ char c;
+ int startLine = line;
+
+ try {
+ while (!tryRead (delim)) {
+ c = readCh ();
+ dataBufferAppend (c);
+ }
+ } catch (EOFException e) {
+ error ("end of input while looking for delimiter "
+ + "(started on line " + startLine
+ + ')', null, new String (delim));
+ }
+ }
- //////////////////////////////////////////////////////////////////////
- // Low-level I/O.
- //////////////////////////////////////////////////////////////////////
-
- /**
- * Prefetch US-ASCII XML/text decl from input stream into read buffer.
- * Doesn't buffer more than absolutely needed, so that when an encoding
- * decl says we need to create an InputStreamReader, we can discard our
- * buffer and reset(). Caller knows the first chars of the decl exist
- * in the input stream.
- */
- private void prefetchASCIIEncodingDecl()
+
+ //////////////////////////////////////////////////////////////////////
+ // Low-level I/O.
+ //////////////////////////////////////////////////////////////////////
+
+
+ /**
+ * Prefetch US-ASCII XML/text decl from input stream into read buffer.
+ * Doesn't buffer more than absolutely needed, so that when an encoding
+ * decl says we need to create an InputStreamReader, we can discard our
+ * buffer and reset(). Caller knows the first chars of the decl exist
+ * in the input stream.
+ */
+ private void prefetchASCIIEncodingDecl ()
throws SAXException, IOException
- {
- int ch;
- readBufferPos = readBufferLength = 0;
-
- is.mark(readBuffer.length);
- while (true)
- {
- ch = is.read();
- readBuffer[readBufferLength++] = (char) ch;
- switch (ch)
- {
- case (int) '>':
- return;
- case -1:
- error("file ends before end of XML or encoding declaration.",
- null, "?>");
- }
- if (readBuffer.length == readBufferLength)
- {
- error("unfinished XML or encoding declaration");
- }
- }
- }
+ {
+ int ch;
+ readBufferPos = readBufferLength = 0;
+
+ is.mark (readBuffer.length);
+ while (true) {
+ ch = is.read ();
+ readBuffer [readBufferLength++] = (char) ch;
+ switch (ch) {
+ case (int) '>':
+ return;
+ case -1:
+ error ("file ends before end of XML or encoding declaration.",
+ null, "?>");
+ }
+ if (readBuffer.length == readBufferLength)
+ error ("unfinished XML or encoding declaration");
+ }
+ }
- /**
- * Read a chunk of data from an external input source.
- * <p>This is simply a front-end that fills the rawReadBuffer
- * with bytes, then calls the appropriate encoding handler.
- * @see #encoding
- * @see #rawReadBuffer
- * @see #readBuffer
- * @see #filterCR
- * @see #copyUtf8ReadBuffer
- * @see #copyIso8859_1ReadBuffer
- * @see #copyUcs_2ReadBuffer
- * @see #copyUcs_4ReadBuffer
- */
- private void readDataChunk()
+ /**
+ * Read a chunk of data from an external input source.
+
* <p>This is simply a front-end that fills the rawReadBuffer
+ * with bytes, then calls the appropriate encoding handler.
+ * @see #encoding
+ * @see #rawReadBuffer
+ * @see #readBuffer
+ * @see #filterCR
+ * @see #copyUtf8ReadBuffer
+ * @see #copyIso8859_1ReadBuffer
+ * @see #copyUcs_2ReadBuffer
+ * @see #copyUcs_4ReadBuffer
+ */
+ private void readDataChunk ()
throws SAXException, IOException
- {
- int count;
-
- // See if we have any overflow (filterCR sets for CR at end)
- if (readBufferOverflow > -1)
- {
- readBuffer[0] = (char) readBufferOverflow;
- readBufferOverflow = -1;
- readBufferPos = 1;
- sawCR = true;
- }
- else
- {
- readBufferPos = 0;
- sawCR = false;
- }
+ {
+ int count;
+
+ // See if we have any overflow (filterCR sets for CR at end)
+ if (readBufferOverflow > -1) {
+ readBuffer [0] = (char) readBufferOverflow;
+ readBufferOverflow = -1;
+ readBufferPos = 1;
+ sawCR = true;
+ } else {
+ readBufferPos = 0;
+ sawCR = false;
+ }
+
+ // input from a character stream.
+ if (sourceType == INPUT_READER) {
+ count = reader.read (readBuffer,
+ readBufferPos, READ_BUFFER_MAX - readBufferPos);
+ if (count < 0)
+ readBufferLength = readBufferPos;
+ else
+ readBufferLength = readBufferPos + count;
+ if (readBufferLength > 0)
+ filterCR (count >= 0);
+ sawCR = false;
+ return;
+ }
+
+ // Read as many bytes as possible into the raw buffer.
+ count = is.read (rawReadBuffer, 0, READ_BUFFER_MAX);
+
+ // Dispatch to an encoding-specific reader method to populate
+ // the readBuffer. In most parser speed profiles, these routines
+ // show up at the top of the CPU usage chart.
+ if (count > 0) {
+ switch (encoding) {
+ // one byte builtins
+ case ENCODING_ASCII:
+ copyIso8859_1ReadBuffer (count, (char) 0x0080);
+ break;
+ case ENCODING_UTF_8:
+ copyUtf8ReadBuffer (count);
+ break;
+ case ENCODING_ISO_8859_1:
+ copyIso8859_1ReadBuffer (count, (char) 0);
+ break;
+
+ // two byte builtins
+ case ENCODING_UCS_2_12:
+ copyUcs2ReadBuffer (count, 8, 0);
+ break;
+ case ENCODING_UCS_2_21:
+ copyUcs2ReadBuffer (count, 0, 8);
+ break;
+
+ // four byte builtins
+ case ENCODING_UCS_4_1234:
+ copyUcs4ReadBuffer (count, 24, 16, 8, 0);
+ break;
+ case ENCODING_UCS_4_4321:
+ copyUcs4ReadBuffer (count, 0, 8, 16, 24);
+ break;
+ case ENCODING_UCS_4_2143:
+ copyUcs4ReadBuffer (count, 16, 24, 0, 8);
+ break;
+ case ENCODING_UCS_4_3412:
+ copyUcs4ReadBuffer (count, 8, 0, 24, 16);
+ break;
+ }
+ } else
+ readBufferLength = readBufferPos;
+
+ readBufferPos = 0;
+
+ // Filter out all carriage returns if we've seen any
+ // (including any saved from a previous read)
+ if (sawCR) {
+ filterCR (count >= 0);
+ sawCR = false;
+
+ // must actively report EOF, lest some CRs get lost.
+ if (readBufferLength == 0 && count >= 0)
+ readDataChunk ();
+ }
+
+ if (count > 0)
+ currentByteCount += count;
+ }
- // input from a character stream.
- if (sourceType == INPUT_READER)
- {
- count = reader.read(readBuffer,
- readBufferPos, READ_BUFFER_MAX - readBufferPos);
- if (count < 0)
- {
- readBufferLength = readBufferPos;
- }
- else
- {
- readBufferLength = readBufferPos + count;
- }
- if (readBufferLength > 0)
- {
- filterCR(count >= 0);
- }
- sawCR = false;
- return;
- }
-
- // Read as many bytes as possible into the raw buffer.
- count = is.read(rawReadBuffer, 0, READ_BUFFER_MAX);
-
- // Dispatch to an encoding-specific reader method to populate
- // the readBuffer. In most parser speed profiles, these routines
- // show up at the top of the CPU usage chart.
- if (count > 0)
- {
- switch (encoding)
- {
- // one byte builtins
- case ENCODING_ASCII:
- copyIso8859_1ReadBuffer(count, (char) 0x0080);
- break;
- case ENCODING_UTF_8:
- copyUtf8ReadBuffer(count);
- break;
- case ENCODING_ISO_8859_1:
- copyIso8859_1ReadBuffer(count, (char) 0);
- break;
- // two byte builtins
- case ENCODING_UCS_2_12:
- copyUcs2ReadBuffer(count, 8, 0);
- break;
- case ENCODING_UCS_2_21:
- copyUcs2ReadBuffer(count, 0, 8);
- break;
-
- // four byte builtins
- case ENCODING_UCS_4_1234:
- copyUcs4ReadBuffer(count, 24, 16, 8, 0);
- break;
- case ENCODING_UCS_4_4321:
- copyUcs4ReadBuffer(count, 0, 8, 16, 24);
- break;
- case ENCODING_UCS_4_2143:
- copyUcs4ReadBuffer(count, 16, 24, 0, 8);
- break;
- case ENCODING_UCS_4_3412:
- copyUcs4ReadBuffer(count, 8, 0, 24, 16);
- break;
- }
- }
- else
- {
- readBufferLength = readBufferPos;
- }
+ /**
+ * Filter carriage returns in the read buffer.
+ * CRLF becomes LF; CR becomes LF.
+ * @param moreData true iff more data might come from the same source
+ * @see #readDataChunk
+ * @see #readBuffer
+ * @see #readBufferOverflow
+ */
+ private void filterCR (boolean moreData)
+ {
+ int i, j;
- readBufferPos = 0;
-
- // Filter out all carriage returns if we've seen any
- // (including any saved from a previous read)
- if (sawCR)
- {
- filterCR(count >= 0);
- sawCR = false;
-
- // must actively report EOF, lest some CRs get lost.
- if (readBufferLength == 0 && count >= 0)
- {
- readDataChunk();
- }
- }
-
- if (count > 0)
- {
- currentByteCount += count;
- }
- }
-
- /**
- * Filter carriage returns in the read buffer.
- * CRLF becomes LF; CR becomes LF.
- * @param moreData true iff more data might come from the same source
- * @see #readDataChunk
- * @see #readBuffer
- * @see #readBufferOverflow
- */
- private void filterCR(boolean moreData)
- {
- int i, j;
+ readBufferOverflow = -1;
- readBufferOverflow = -1;
-
loop:
- for (i = j = readBufferPos; j < readBufferLength; i++, j++)
- {
- switch (readBuffer[j])
- {
- case '\r':
- if (j == readBufferLength - 1)
- {
- if (moreData)
- {
- readBufferOverflow = '\r';
- readBufferLength--;
- }
- else // CR at end of buffer
- {
- readBuffer[i++] = '\n';
- }
- break loop;
- }
- else if (readBuffer[j + 1] == '\n')
- {
- j++;
- }
- readBuffer[i] = '\n';
- break;
-
- case '\n':
- default:
- readBuffer[i] = readBuffer[j];
- break;
- }
- }
- readBufferLength = i;
- }
+ for (i = j = readBufferPos; j < readBufferLength; i++, j++) {
+ switch (readBuffer [j]) {
+ case '\r':
+ if (j == readBufferLength - 1) {
+ if (moreData) {
+ readBufferOverflow = '\r';
+ readBufferLength--;
+ } else // CR at end of buffer
+ readBuffer [i++] = '\n';
+ break loop;
+ } else if (readBuffer [j + 1] == '\n') {
+ j++;
+ }
+ readBuffer [i] = '\n';
+ break;
+
+ case '\n':
+ default:
+ readBuffer [i] = readBuffer [j];
+ break;
+ }
+ }
+ readBufferLength = i;
+ }
- /**
- * Convert a buffer of UTF-8-encoded bytes into UTF-16 characters.
- * <p>When readDataChunk () calls this method, the raw bytes are in
- * rawReadBuffer, and the final characters will appear in
- * readBuffer.
- * <p>Note that as of Unicode 3.1, good practice became a requirement,
- * so that each Unicode character has exactly one UTF-8 representation.
- * @param count The number of bytes to convert.
- * @see #readDataChunk
- * @see #rawReadBuffer
- * @see #readBuffer
- * @see #getNextUtf8Byte
- */
- private void copyUtf8ReadBuffer(int count)
- throws SAXException, IOException
- {
- int i = 0;
- int j = readBufferPos;
- int b1;
- char c = 0;
-
- /*
- // check once, so the runtime won't (if it's smart enough)
- if (count < 0 || count > rawReadBuffer.length)
- throw new ArrayIndexOutOfBoundsException (Integer.toString (count));
+ /**
+ * Convert a buffer of UTF-8-encoded bytes into UTF-16 characters.
+ * <p>When readDataChunk () calls this method, the raw bytes are in
+ * rawReadBuffer, and the final characters will appear in
+ * readBuffer.
+ * <p>Note that as of Unicode 3.1, good practice became a requirement,
+ * so that each Unicode character has exactly one UTF-8 representation.
+ * @param count The number of bytes to convert.
+ * @see #readDataChunk
+ * @see #rawReadBuffer
+ * @see #readBuffer
+ * @see #getNextUtf8Byte
*/
+ private void copyUtf8ReadBuffer (int count)
+ throws SAXException, IOException
+ {
+ int i = 0;
+ int j = readBufferPos;
+ int b1;
+ char c = 0;
+
+ /*
+ // check once, so the runtime won't (if it's smart enough)
+ if (count < 0 || count > rawReadBuffer.length)
+ throw new ArrayIndexOutOfBoundsException (Integer.toString (count));
+ */
+
+ while (i < count) {
+ b1 = rawReadBuffer [i++];
+
+ // Determine whether we are dealing
+ // with a one-, two-, three-, or four-
+ // byte sequence.
+ if (b1 < 0) {
+ if ((b1 & 0xe0) == 0xc0) {
+ // 2-byte sequence: 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx
+ c = (char) (((b1 & 0x1f) << 6)
+ | getNextUtf8Byte (i++, count));
+ if (c < 0x0080)
+ encodingError ("Illegal two byte UTF-8 sequence",
+ c, 0);
+ //Sec 2.11
+ // [1] the two-character sequence #xD #xA
+ // [2] the two-character sequence #xD #x85
+ if ((c == 0x0085 || c == 0x000a) && sawCR)
+ continue;
+
+ // Sec 2.11
+ // [3] the single character #x85
+
+ if(c == 0x0085 && xmlVersion == XML_11)
+ readBuffer[j++] = '\r';
+ } else if ((b1 & 0xf0) == 0xe0) {
+ // 3-byte sequence:
+ // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx
+ // most CJKV characters
+ c = (char) (((b1 & 0x0f) << 12) |
+ (getNextUtf8Byte (i++, count) << 6) |
+ getNextUtf8Byte (i++, count));
+ //sec 2.11
+ //[4] the single character #x2028
+ if(c == 0x2028 && xmlVersion == XML_11){
+ readBuffer[j++] = '\r';
+ sawCR = true;
+ continue;
+ }
+ if (c < 0x0800 || (c >= 0xd800 && c <= 0xdfff))
+ encodingError ("Illegal three byte UTF-8 sequence",
+ c, 0);
+ } else if ((b1 & 0xf8) == 0xf0) {
+ // 4-byte sequence: 11101110wwwwzzzzyy + 110111yyyyxxxxxx
+ // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx
+ // (uuuuu = wwww + 1)
+ // "Surrogate Pairs" ... from the "Astral Planes"
+ // Unicode 3.1 assigned the first characters there
+ int iso646 = b1 & 07;
+ iso646 = (iso646 << 6) + getNextUtf8Byte (i++, count);
+ iso646 = (iso646 << 6) + getNextUtf8Byte (i++, count);
+ iso646 = (iso646 << 6) + getNextUtf8Byte (i++, count);
+
+ if (iso646 <= 0xffff) {
+ encodingError ("Illegal four byte UTF-8 sequence",
+ iso646, 0);
+ } else {
+ if (iso646 > 0x0010ffff)
+ encodingError (
+ "UTF-8 value out of range for Unicode",
+ iso646, 0);
+ iso646 -= 0x010000;
+ readBuffer [j++] = (char) (0xd800 | (iso646 >> 10));
+ readBuffer [j++] = (char) (0xdc00 | (iso646 & 0x03ff));
+ continue;
+ }
+ } else {
+ // The five and six byte encodings aren't supported;
+ // they exceed the Unicode (and XML) range.
+ encodingError (
+ "unsupported five or six byte UTF-8 sequence",
+ 0xff & b1, i);
+ // NOTREACHED
+ c = 0;
+ }
+ } else {
+ // 1-byte sequence: 000000000xxxxxxx = 0xxxxxxx
+ // (US-ASCII character, "common" case, one branch to here)
+ c = (char) b1;
+ }
+ readBuffer [j++] = c;
+ if (c == '\r')
+ sawCR = true;
+ }
+ // How many characters have we read?
+ readBufferLength = j;
+ }
- while (i < count)
- {
- b1 = rawReadBuffer[i++];
- // Determine whether we are dealing
- // with a one-, two-, three-, or four-
- // byte sequence.
- if (b1 < 0)
- {
- if ((b1 & 0xe0) == 0xc0)
- {
- // 2-byte sequence: 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx
- c = (char) (((b1 & 0x1f) << 6)
- | getNextUtf8Byte(i++, count));
- if (c < 0x0080)
- {
- encodingError("Illegal two byte UTF-8 sequence",
- c, 0);
- }
-
- //Sec 2.11
- // [1] the two-character sequence #xD #xA
- // [2] the two-character sequence #xD #x85
- if ((c == 0x0085 || c == 0x000a) && sawCR)
- {
- continue;
- }
-
- // Sec 2.11
- // [3] the single character #x85
-
- if (c == 0x0085 && xmlVersion == XML_11)
- {
- readBuffer[j++] = '\r';
- }
- }
- else if ((b1 & 0xf0) == 0xe0)
- {
- // 3-byte sequence:
- // zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx
- // most CJKV characters
- c = (char) (((b1 & 0x0f) << 12) |
- (getNextUtf8Byte(i++, count) << 6) |
- getNextUtf8Byte(i++, count));
- //sec 2.11
- //[4] the single character #x2028
- if (c == 0x2028 && xmlVersion == XML_11)
- {
- readBuffer[j++] = '\r';
- sawCR = true;
- continue;
- }
- if (c < 0x0800 || (c >= 0xd800 && c <= 0xdfff))
- {
- encodingError("Illegal three byte UTF-8 sequence",
- c, 0);
- }
- }
- else if ((b1 & 0xf8) == 0xf0)
- {
- // 4-byte sequence: 11101110wwwwzzzzyy + 110111yyyyxxxxxx
- // = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx
- // (uuuuu = wwww + 1)
- // "Surrogate Pairs" ... from the "Astral Planes"
- // Unicode 3.1 assigned the first characters there
- int iso646 = b1 & 07;
- iso646 = (iso646 << 6) + getNextUtf8Byte(i++, count);
- iso646 = (iso646 << 6) + getNextUtf8Byte(i++, count);
- iso646 = (iso646 << 6) + getNextUtf8Byte(i++, count);
-
- if (iso646 <= 0xffff)
- {
- encodingError("Illegal four byte UTF-8 sequence",
- iso646, 0);
- }
- else
- {
- if (iso646 > 0x0010ffff)
- {
- encodingError("UTF-8 value out of range for Unicode",
- iso646, 0);
- }
- iso646 -= 0x010000;
- readBuffer[j++] = (char) (0xd800 | (iso646 >> 10));
- readBuffer[j++] = (char) (0xdc00 | (iso646 & 0x03ff));
- continue;
- }
- }
- else
- {
- // The five and six byte encodings aren't supported;
- // they exceed the Unicode (and XML) range.
- encodingError("unsupported five or six byte UTF-8 sequence",
- 0xff & b1, i);
- // NOTREACHED
- c = 0;
- }
- }
- else
- {
- // 1-byte sequence: 000000000xxxxxxx = 0xxxxxxx
- // (US-ASCII character, "common" case, one branch to here)
- c = (char) b1;
- }
- readBuffer[j++] = c;
- if (c == '\r')
- {
- sawCR = true;
- }
- }
- // How many characters have we read?
- readBufferLength = j;
- }
-
- /**
- * Return the next byte value in a UTF-8 sequence.
- * If it is not possible to get a byte from the current
- * entity, throw an exception.
- * @param pos The current position in the rawReadBuffer.
- * @param count The number of bytes in the rawReadBuffer
- * @return The significant six bits of a non-initial byte in
- * a UTF-8 sequence.
- * @exception EOFException If the sequence is incomplete.
- */
- private int getNextUtf8Byte(int pos, int count)
+ /**
+ * Return the next byte value in a UTF-8 sequence.
+ * If it is not possible to get a byte from the current
+ * entity, throw an exception.
+ * @param pos The current position in the rawReadBuffer.
+ * @param count The number of bytes in the rawReadBuffer
+ * @return The significant six bits of a non-initial byte in
+ * a UTF-8 sequence.
+ * @exception EOFException If the sequence is incomplete.
+ */
+ private int getNextUtf8Byte (int pos, int count)
throws SAXException, IOException
- {
- int val;
-
- // Take a character from the buffer
- // or from the actual input stream.
- if (pos < count)
- {
- val = rawReadBuffer[pos];
- }
- else
- {
- val = is.read();
- if (val == -1)
- {
- encodingError("unfinished multi-byte UTF-8 sequence at EOF",
- -1, pos);
- }
- }
-
- // Check for the correct bits at the start.
- if ((val & 0xc0) != 0x80)
- {
- encodingError("bad continuation of multi-byte UTF-8 sequence",
- val, pos + 1);
- }
+ {
+ int val;
+
+ // Take a character from the buffer
+ // or from the actual input stream.
+ if (pos < count) {
+ val = rawReadBuffer [pos];
+ } else {
+ val = is.read ();
+ if (val == -1) {
+ encodingError ("unfinished multi-byte UTF-8 sequence at EOF",
+ -1, pos);
+ }
+ }
+
+ // Check for the correct bits at the start.
+ if ((val & 0xc0) != 0x80) {
+ encodingError ("bad continuation of multi-byte UTF-8 sequence",
+ val, pos + 1);
+ }
+
+ // Return the significant bits.
+ return (val & 0x3f);
+ }
- // Return the significant bits.
- return (val & 0x3f);
- }
- /**
- * Convert a buffer of US-ASCII or ISO-8859-1-encoded bytes into
- * UTF-16 characters.
- *
- * <p>When readDataChunk () calls this method, the raw bytes are in
- * rawReadBuffer, and the final characters will appear in
- * readBuffer.
- *
- * @param count The number of bytes to convert.
- * @param mask For ASCII conversion, 0x7f; else, 0xff.
- * @see #readDataChunk
- * @see #rawReadBuffer
- * @see #readBuffer
- */
- private void copyIso8859_1ReadBuffer(int count, char mask)
+ /**
+ * Convert a buffer of US-ASCII or ISO-8859-1-encoded bytes into
+ * UTF-16 characters.
+ *
+
* <p>When readDataChunk () calls this method, the raw bytes are in
+ * rawReadBuffer, and the final characters will appear in
+ * readBuffer.
+ *
+ * @param count The number of bytes to convert.
+ * @param mask For ASCII conversion, 0x7f; else, 0xff.
+ * @see #readDataChunk
+ * @see #rawReadBuffer
+ * @see #readBuffer
+ */
+ private void copyIso8859_1ReadBuffer (int count, char mask)
throws IOException
- {
- int i, j;
- for (i = 0, j = readBufferPos; i < count; i++, j++)
- {
- char c = (char) (rawReadBuffer[i] & 0xff);
- if ((c & mask) != 0)
- {
- throw new CharConversionException("non-ASCII character U+"
- + Integer.toHexString(c));
- }
- if (c == 0x0085 && xmlVersion == XML_11)
- {
- c = '\r';
- }
- readBuffer[j] = c;
- if (c == '\r')
- {
- sawCR = true;
- }
- }
- readBufferLength = j;
- }
+ {
+ int i, j;
+ for (i = 0, j = readBufferPos; i < count; i++, j++) {
+ char c = (char) (rawReadBuffer [i] & 0xff);
+ if ((c & mask) != 0)
+ throw new CharConversionException ("non-ASCII character U+"
+ + Integer.toHexString (c));
+ if (c == 0x0085 && xmlVersion == XML_11)
+ c = '\r';
+ readBuffer [j] = c;
+ if (c == '\r') {
+ sawCR = true;
+ }
+ }
+ readBufferLength = j;
+ }
- /**
- * Convert a buffer of UCS-2-encoded bytes into UTF-16 characters
- * (as used in Java string manipulation).
- *
- * <p>When readDataChunk () calls this method, the raw bytes are in
- * rawReadBuffer, and the final characters will appear in
- * readBuffer.
- * @param count The number of bytes to convert.
- * @param shift1 The number of bits to shift byte 1.
- * @param shift2 The number of bits to shift byte 2
- * @see #readDataChunk
- * @see #rawReadBuffer
- * @see #readBuffer
- */
- private void copyUcs2ReadBuffer(int count, int shift1, int shift2)
- throws SAXException
- {
- int j = readBufferPos;
-
- if (count > 0 && (count % 2) != 0)
- {
- encodingError("odd number of bytes in UCS-2 encoding", -1, count);
- }
- // The loops are faster with less internal brancing; hence two
- if (shift1 == 0)
- { // "UTF-16-LE"
- for (int i = 0; i < count; i += 2)
- {
- char c = (char) (rawReadBuffer[i + 1] << 8);
- c |= 0xff & rawReadBuffer[i];
- readBuffer[j++] = c;
- if (c == '\r')
- {
- sawCR = true;
- }
- }
- }
- else
- { // "UTF-16-BE"
- for (int i = 0; i < count; i += 2)
- {
- char c = (char) (rawReadBuffer[i] << 8);
- c |= 0xff & rawReadBuffer[i + 1];
- readBuffer[j++] = c;
- if (c == '\r')
- {
- sawCR = true;
- }
- }
- }
- readBufferLength = j;
- }
- /**
- * Convert a buffer of UCS-4-encoded bytes into UTF-16 characters.
- *
- * <p>When readDataChunk () calls this method, the raw bytes are in
- * rawReadBuffer, and the final characters will appear in
- * readBuffer.
- * <p>Java has Unicode chars, and this routine uses surrogate pairs
- * for ISO-10646 values between 0x00010000 and 0x000fffff. An
- * exception is thrown if the ISO-10646 character has no Unicode
- * representation.
- *
- * @param count The number of bytes to convert.
- * @param shift1 The number of bits to shift byte 1.
- * @param shift2 The number of bits to shift byte 2
- * @param shift3 The number of bits to shift byte 2
- * @param shift4 The number of bits to shift byte 2
- * @see #readDataChunk
- * @see #rawReadBuffer
- * @see #readBuffer
- */
- private void copyUcs4ReadBuffer(int count, int shift1, int shift2,
- int shift3, int shift4)
+ /**
+ * Convert a buffer of UCS-2-encoded bytes into UTF-16 characters
+ * (as used in Java string manipulation).
+ *
+ * <p>When readDataChunk () calls this method, the raw bytes are in
+ * rawReadBuffer, and the final characters will appear in
+ * readBuffer.
+ * @param count The number of bytes to convert.
+ * @param shift1 The number of bits to shift byte 1.
+ * @param shift2 The number of bits to shift byte 2
+ * @see #readDataChunk
+ * @see #rawReadBuffer
+ * @see #readBuffer
+ */
+ private void copyUcs2ReadBuffer (int count, int shift1, int shift2)
throws SAXException
- {
- int j = readBufferPos;
-
- if (count > 0 && (count % 4) != 0)
- {
- encodingError("number of bytes in UCS-4 encoding " +
- "not divisible by 4",
- -1, count);
- }
- for (int i = 0; i < count; i += 4)
- {
- int value = (((rawReadBuffer [i] & 0xff) << shift1) |
- ((rawReadBuffer [i + 1] & 0xff) << shift2) |
- ((rawReadBuffer [i + 2] & 0xff) << shift3) |
- ((rawReadBuffer [i + 3] & 0xff) << shift4));
- if (value < 0x0000ffff)
- {
- readBuffer [j++] = (char) value;
- if (value == (int) '\r')
- {
- sawCR = true;
- }
- }
- else if (value < 0x0010ffff)
- {
- value -= 0x010000;
- readBuffer[j++] = (char) (0xd8 | ((value >> 10) & 0x03ff));
- readBuffer[j++] = (char) (0xdc | (value & 0x03ff));
- }
- else
- {
- encodingError("UCS-4 value out of range for Unicode",
- value, i);
- }
- }
- readBufferLength = j;
- }
+ {
+ int j = readBufferPos;
+
+ if (count > 0 && (count % 2) != 0) {
+ encodingError ("odd number of bytes in UCS-2 encoding", -1, count);
+ }
+ // The loops are faster with less internal brancing; hence two
+ if (shift1 == 0) { // "UTF-16-LE"
+ for (int i = 0; i < count; i += 2) {
+ char c = (char) (rawReadBuffer [i + 1] << 8);
+ c |= 0xff & rawReadBuffer [i];
+ readBuffer [j++] = c;
+ if (c == '\r')
+ sawCR = true;
+ }
+ } else { // "UTF-16-BE"
+ for (int i = 0; i < count; i += 2) {
+ char c = (char) (rawReadBuffer [i] << 8);
+ c |= 0xff & rawReadBuffer [i + 1];
+ readBuffer [j++] = c;
+ if (c == '\r')
+ sawCR = true;
+ }
+ }
+ readBufferLength = j;
+ }
- /**
- * Report a character encoding error.
- */
- private void encodingError(String message, int value, int offset)
- throws SAXException
- {
- if (value != -1)
- {
- message = message + " (character code: 0x" +
- Integer.toHexString(value) + ')';
- error(message);
- }
- }
-
- //////////////////////////////////////////////////////////////////////
- // Local Variables.
- //////////////////////////////////////////////////////////////////////
-
- /**
- * Re-initialize the variables for each parse.
- */
- private void initializeVariables()
- {
- // First line
- line = 1;
- column = 0;
-
- // Set up the buffers for data and names
- dataBufferPos = 0;
- dataBuffer = new char[DATA_BUFFER_INITIAL];
- nameBufferPos = 0;
- nameBuffer = new char[NAME_BUFFER_INITIAL];
-
- // Set up the DTD hash tables
- elementInfo = new HashMap();
- entityInfo = new HashMap();
- notationInfo = new HashMap();
- skippedPE = false;
-
- // Set up the variables for the current
- // element context.
- currentElement = null;
- currentElementContent = CONTENT_UNDECLARED;
-
- // Set up the input variables
- sourceType = INPUT_NONE;
- inputStack = new LinkedList();
- entityStack = new LinkedList();
- externalEntity = null;
- tagAttributePos = 0;
- tagAttributes = new String[100];
- rawReadBuffer = new byte[READ_BUFFER_MAX];
- readBufferOverflow = -1;
-
- scratch = new InputSource();
-
- inLiteral = false;
- expandPE = false;
- peIsError = false;
-
- doReport = false;
-
- inCDATA = false;
-
- symbolTable = new Object[SYMBOL_TABLE_LENGTH][];
- }
- static class ExternalIdentifiers
- {
+ /**
+ * Convert a buffer of UCS-4-encoded bytes into UTF-16 characters.
+ *
+ * <p>When readDataChunk () calls this method, the raw bytes are in
+ * rawReadBuffer, and the final characters will appear in
+ * readBuffer.
+ * <p>Java has Unicode chars, and this routine uses surrogate pairs
+ * for ISO-10646 values between 0x00010000 and 0x000fffff. An
+ * exception is thrown if the ISO-10646 character has no Unicode
+ * representation.
+ *
+ * @param count The number of bytes to convert.
+ * @param shift1 The number of bits to shift byte 1.
+ * @param shift2 The number of bits to shift byte 2
+ * @param shift3 The number of bits to shift byte 2
+ * @param shift4 The number of bits to shift byte 2
+ * @see #readDataChunk
+ * @see #rawReadBuffer
+ * @see #readBuffer
+ */
+ private void copyUcs4ReadBuffer (int count, int shift1, int shift2,
+ int shift3, int shift4)
+ throws SAXException
+ {
+ int j = readBufferPos;
+
+ if (count > 0 && (count % 4) != 0) {
+ encodingError (
+ "number of bytes in UCS-4 encoding not divisible by 4",
+ -1, count);
+ }
+ for (int i = 0; i < count; i += 4) {
+ int value = (((rawReadBuffer [i] & 0xff) << shift1) |
+ ((rawReadBuffer [i + 1] & 0xff) << shift2) |
+ ((rawReadBuffer [i + 2] & 0xff) << shift3) |
+ ((rawReadBuffer [i + 3] & 0xff) << shift4));
+ if (value < 0x0000ffff) {
+ readBuffer [j++] = (char) value;
+ if (value == (int) '\r') {
+ sawCR = true;
+ }
+ } else if (value < 0x0010ffff) {
+ value -= 0x010000;
+ readBuffer [j++] = (char) (0xd8 | ((value >> 10) & 0x03ff));
+ readBuffer [j++] = (char) (0xdc | (value & 0x03ff));
+ } else {
+ encodingError ("UCS-4 value out of range for Unicode",
+ value, i);
+ }
+ }
+ readBufferLength = j;
+ }
- String publicId;
- String systemId;
- String baseUri;
- ExternalIdentifiers()
+ /**
+ * Report a character encoding error.
+ */
+ private void encodingError (String message, int value, int offset)
+ throws SAXException
{
+ if (value != -1)
+ message = message + " (character code: 0x" +
+ Integer.toHexString (value) + ')';
+ error (message);
}
- ExternalIdentifiers(String publicId, String systemId, String baseUri)
+
+ //////////////////////////////////////////////////////////////////////
+ // Local Variables.
+ //////////////////////////////////////////////////////////////////////
+
+ /**
+ * Re-initialize the variables for each parse.
+ */
+ private void initializeVariables ()
{
- this.publicId = publicId;
- this.systemId = systemId;
- this.baseUri = baseUri;
+ // First line
+ line = 1;
+ column = 0;
+
+ // Set up the buffers for data and names
+ dataBufferPos = 0;
+ dataBuffer = new char [DATA_BUFFER_INITIAL];
+ nameBufferPos = 0;
+ nameBuffer = new char [NAME_BUFFER_INITIAL];
+
+ // Set up the DTD hash tables
+ elementInfo = new Hashtable ();
+ entityInfo = new Hashtable ();
+ notationInfo = new Hashtable ();
+ skippedPE = false;
+
+ // Set up the variables for the current
+ // element context.
+ currentElement = null;
+ currentElementContent = CONTENT_UNDECLARED;
+
+ // Set up the input variables
+ sourceType = INPUT_NONE;
+ inputStack = new Stack ();
+ entityStack = new Stack ();
+ externalEntity = null;
+ tagAttributePos = 0;
+ tagAttributes = new String [100];
+ rawReadBuffer = new byte [READ_BUFFER_MAX];
+ readBufferOverflow = -1;
+
+ scratch = new InputSource ();
+
+ inLiteral = false;
+ expandPE = false;
+ peIsError = false;
+
+ doReport = false;
+
+ inCDATA = false;
+
+ symbolTable = new Object [SYMBOL_TABLE_LENGTH][];
}
-
- }
- static class EntityInfo
- {
- int type;
- ExternalIdentifiers ids;
- String value;
- String notationName;
-
- }
+ //
+ // The current XML handler interface.
+ //
+ private SAXDriver handler;
- static class AttributeDecl
- {
-
- String type;
- String value;
- int valueType;
- String enumeration;
- String defaultValue;
+ //
+ // I/O information.
+ //
+ private Reader reader; // current reader
+ private InputStream is; // current input stream
+ private int line; // current line number
+ private int column; // current column number
+ private int sourceType; // type of input source
+ private Stack inputStack; // stack of input soruces
+ private URLConnection externalEntity; // current external entity
+ private int encoding; // current character encoding
+ private int currentByteCount; // bytes read from current source
+ private InputSource scratch; // temporary
- }
+ //
+ // Buffers for decoded but unparsed character input.
+ //
+ private char readBuffer [];
+ private int readBufferPos;
+ private int readBufferLength;
+ private int readBufferOverflow; // overflow from last data chunk.
- static class ElementDecl
- {
-
- int contentType;
- String contentModel;
- HashMap attributes;
-
- }
-
- static class Input
- {
-
- int sourceType;
- URLConnection externalEntity;
- char[] readBuffer;
- int readBufferPos;
- int readBufferLength;
- int line;
- int encoding;
- int readBufferOverflow;
- InputStream is;
- int currentByteCount;
- int column;
- Reader reader;
+
+ //
+ // Buffer for undecoded raw byte input.
+ //
+ private final static int READ_BUFFER_MAX = 16384;
+ private byte rawReadBuffer [];
+
+
+ //
+ // Buffer for attribute values, char refs, DTD stuff.
+ //
+ private static int DATA_BUFFER_INITIAL = 4096;
+ private char dataBuffer [];
+ private int dataBufferPos;
+
+ //
+ // Buffer for parsed names.
+ //
+ private static int NAME_BUFFER_INITIAL = 1024;
+ private char nameBuffer [];
+ private int nameBufferPos;
+
+ //
+ // Save any standalone flag
+ //
+ private boolean docIsStandalone;
+
+ //
+ // Hashtables for DTD information on elements, entities, and notations.
+ // Populated until we start ignoring decls (because of skipping a PE)
+ //
+ private Hashtable elementInfo;
+ private Hashtable entityInfo;
+ private Hashtable notationInfo;
+ private boolean skippedPE;
+
+
+ //
+ // Element type currently in force.
+ //
+ private String currentElement;
+ private int currentElementContent;
+
+ //
+ // Stack of entity names, to detect recursion.
+ //
+ private Stack entityStack;
+
+ //
+ // PE expansion is enabled in most chunks of the DTD, not all.
+ // When it's enabled, literals are treated differently.
+ //
+ private boolean inLiteral;
+ private boolean expandPE;
+ private boolean peIsError;
+
+ //
+ // can't report entity expansion inside two constructs:
+ // - attribute expansions (internal entities only)
+ // - markup declarations (parameter entities only)
+ //
+ private boolean doReport;
+
+ //
+ // Symbol table, for caching interned names.
+ //
+ // These show up wherever XML names or nmtokens are used: naming elements,
+ // attributes, PIs, notations, entities, and enumerated attribute values.
+ //
+ // NOTE: This hashtable doesn't grow. The default size is intended to be
+ // rather large for most documents. Example: one snapshot of the DocBook
+ // XML 4.1 DTD used only about 350 such names. As a rule, only pathological
+ // documents (ones that don't reuse names) should ever see much collision.
+ //
+ // Be sure that SYMBOL_TABLE_LENGTH always stays prime, for best hashing.
+ // "2039" keeps the hash table size at about two memory pages on typical
+ // 32 bit hardware.
+ //
+ private final static int SYMBOL_TABLE_LENGTH = 2039;
+
+ private Object symbolTable [][];
+
+ //
+ // Hash table of attributes found in current start tag.
+ //
+ private String tagAttributes [];
+ private int tagAttributePos;
+
+ //
+ // Utility flag: have we noticed a CR while reading the last
+ // data chunk? If so, we will have to go back and normalise
+ // CR or CR/LF line ends.
+ //
+ private boolean sawCR;
+
+ //
+ // Utility flag: are we in CDATA? If so, whitespace isn't ignorable.
+ //
+ private boolean inCDATA;
- }
-
+ //
+ // Xml version.
+ //
+ private static final int XML_10 = 0;
+ private static final int XML_11 = 1;
+ private int xmlVersion = XML_10;
}
-
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