org.apache.xerces.impl

Class XML11DTDScannerImpl

java.lang.Object

org.apache.xerces.impl.XMLScanner

org.apache.xerces.impl.XMLDTDScannerImpl

org.apache.xerces.impl.XML11DTDScannerImpl

All Implemented Interfaces:

XMLEntityHandler, XMLComponent, XMLDTDContentModelSource, XMLDTDScanner, XMLDTDSource

public class XML11DTDScannerImpl
extends XMLDTDScannerImpl

This class is responsible for scanning the declarations found in the internal and external subsets of a DTD in an XML document. The scanner acts as the sources for the DTD information which is communicated to the DTD handlers.

This component requires the following features and properties from the component manager that uses it:

• http://xml.org/sax/features/validation
• http://apache.org/xml/features/scanner/notify-char-refs
• http://apache.org/xml/properties/internal/symbol-table
• http://apache.org/xml/properties/internal/error-reporter
• http://apache.org/xml/properties/internal/entity-manager

Version:

$Id$

Author:

Arnaud Le Hors, IBM, Andy Clark, IBM, Glenn Marcy, IBM, Eric Ye, IBM

Field Summary

Fields inherited from class org.apache.xerces.impl.XMLDTDScannerImpl

fDTDContentModelHandler, fDTDHandler, fScannerState, fSeenExternalDTD, fSeenPEReferences, fStandalone, SCANNER_STATE_END_OF_INPUT, SCANNER_STATE_MARKUP_DECL, SCANNER_STATE_TEXT_DECL

Fields inherited from class org.apache.xerces.impl.XMLScanner

DEBUG_ATTR_NORMALIZATION, ENTITY_MANAGER, ERROR_REPORTER, fAmpSymbol, fAposSymbol, fCharRefLiteral, fEncodingSymbol, fEntityDepth, fEntityManager, fEntityScanner, fErrorReporter, fGtSymbol, fLtSymbol, fNamespaces, fNotifyCharRefs, fParserSettings, fQuotSymbol, fReportEntity, fResourceIdentifier, fScanningAttribute, fStandaloneSymbol, fSymbolTable, fValidation, fVersionSymbol, NAMESPACES, NOTIFY_CHAR_REFS, PARSER_SETTINGS, SYMBOL_TABLE, VALIDATION

Constructor Summary

Constructors

Constructor and Description
XML11DTDScannerImpl() Default constructor.
XML11DTDScannerImpl(SymbolTable symbolTable, XMLErrorReporter errorReporter, XMLEntityManager entityManager) Constructor for he use of non-XMLComponentManagers.

Method Summary

Modifier and Type	Method and Description
protected String	getVersionNotSupportedKey()
protected boolean	isInvalid(int value)
protected boolean	isInvalidLiteral(int value)
protected int	isUnchangedByNormalization(XMLString value) Checks whether this string would be unchanged by normalization.
protected boolean	isValidNameChar(int value)
protected boolean	isValidNameStartChar(int value)
protected boolean	isValidNameStartHighSurrogate(int value)
protected boolean	isValidNCName(int value)
protected void	normalizeWhitespace(XMLString value) Normalize whitespace in an XMLString converting all whitespace characters to space characters.
protected void	normalizeWhitespace(XMLString value, int fromIndex) Normalize whitespace in an XMLString converting all whitespace characters to space characters.
protected boolean	scanPubidLiteral(XMLString literal) Scans public ID literal.
protected boolean	versionSupported(String version)

Methods inherited from class org.apache.xerces.impl.XMLDTDScannerImpl

endEntity, getDTDContentModelHandler, getDTDHandler, getFeatureDefault, getPropertyDefault, getRecognizedFeatures, getRecognizedProperties, reset, reset, scanAttDefaultDecl, scanAttlistDecl, scanComment, scanDecls, scanDTDExternalSubset, scanDTDInternalSubset, scanElementDecl, scanEntityValue, scanningInternalSubset, scanPIData, scanTextDecl, setDTDContentModelHandler, setDTDHandler, setInputSource, setScannerState, startEntity, startPE

Methods inherited from class org.apache.xerces.impl.XMLScanner

getFeature, reportFatalError, scanAttributeValue, scanCharReferenceValue, scanComment, scanExternalID, scanPI, scanPseudoAttribute, scanSurrogates, scanXMLDeclOrTextDecl, setFeature, setProperty

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.xerces.xni.parser.XMLComponent

setFeature, setProperty

Constructor Detail

XML11DTDScannerImpl

public XML11DTDScannerImpl()

Default constructor.

XML11DTDScannerImpl

public XML11DTDScannerImpl(SymbolTable symbolTable,
                           XMLErrorReporter errorReporter,
                           XMLEntityManager entityManager)

Constructor for he use of non-XMLComponentManagers.

Method Detail

scanPubidLiteral

protected boolean scanPubidLiteral(XMLString literal)
                            throws IOException,
                                   XNIException

Scans public ID literal. [12] PubidLiteral ::= '"' PubidChar* '"' | "'" (PubidChar - "'")* "'" [13] PubidChar::= #x20 | #xD | #xA | [a-zA-Z0-9] | [-'()+,./:=?;!*#@$_%] The returned string is normalized according to the following rule, from http://www.w3.org/TR/REC-xml#dt-pubid: Before a match is attempted, all strings of white space in the public identifier must be normalized to single space characters (#x20), and leading and trailing white space must be removed.

Overrides:

scanPubidLiteral in class XMLScanner

Parameters:

literal - The string to fill in with the public ID literal.

Returns:

True on success. Note: This method uses fStringBuffer, anything in it at the time of calling is lost.

Throws:

IOException

XNIException

normalizeWhitespace

protected void normalizeWhitespace(XMLString value)

Normalize whitespace in an XMLString converting all whitespace characters to space characters.

Overrides:

normalizeWhitespace in class XMLScanner

normalizeWhitespace

protected void normalizeWhitespace(XMLString value,
                                   int fromIndex)

Normalize whitespace in an XMLString converting all whitespace characters to space characters.

Overrides:

normalizeWhitespace in class XMLScanner

isUnchangedByNormalization

protected int isUnchangedByNormalization(XMLString value)

Checks whether this string would be unchanged by normalization.

Overrides:

isUnchangedByNormalization in class XMLScanner

Returns:

-1 if the value would be unchanged by normalization, otherwise the index of the first whitespace character which would be transformed.

isInvalid

protected boolean isInvalid(int value)

Overrides:

isInvalid in class XMLScanner

isInvalidLiteral

protected boolean isInvalidLiteral(int value)

Overrides:

isInvalidLiteral in class XMLScanner

isValidNameChar

protected boolean isValidNameChar(int value)

Overrides:

isValidNameChar in class XMLScanner

isValidNameStartChar

protected boolean isValidNameStartChar(int value)

Overrides:

isValidNameStartChar in class XMLScanner

isValidNCName

protected boolean isValidNCName(int value)

Overrides:

isValidNCName in class XMLScanner

isValidNameStartHighSurrogate

protected boolean isValidNameStartHighSurrogate(int value)

Overrides:

isValidNameStartHighSurrogate in class XMLScanner

versionSupported

protected boolean versionSupported(String version)

Overrides:

versionSupported in class XMLScanner

getVersionNotSupportedKey

protected String getVersionNotSupportedKey()

Overrides:

getVersionNotSupportedKey in class XMLScanner