net.sf.saxon.event
Class HTMLEmitter

java.lang.Object
  net.sf.saxon.event.Emitter
      net.sf.saxon.event.XMLEmitter
          net.sf.saxon.event.HTMLEmitter

All Implemented Interfaces:

Result, Receiver

public class HTMLEmitter
extends XMLEmitter

This class generates HTML output

Author:

Michael H. Kay

Field Summary

Fields inherited from class net.sf.saxon.event.XMLEmitter

declarationIsWritten, elementCode, elementStack, openStartTag, preferHex, started, startedElement, undeclareNamespaces

Fields inherited from class net.sf.saxon.event.Emitter

allCharactersEncodable, characterSet, namePool, outputProperties, outputStream, pipelineConfig, streamResult, systemId, writer

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

HTMLEmitter()
Constructor

Method Summary

void	characters(CharSequence chars, int locationId, int properties) Character data.
void	endElement() Output an element end tag.
protected static boolean	isEmptyTag(String tag)
void	open() Output start of document
protected void	openDocument() Do the real work of starting the document.
void	processingInstruction(String target, CharSequence data, int locationId, int properties) Handle a processing instruction.
void	startContent() Notify the start of the content, that is, the completion of all attributes and namespaces.
void	startElement(int nameCode, int typeCode, int locationId, int properties) Output element start tag
protected void	writeAttribute(int elCode, String attname, CharSequence value, int properties) Write attribute name=value pair.
protected void	writeDocType(String type, String systemId, String publicId) Output the document type declaration
protected void	writeEscape(CharSequence chars, boolean inAttribute) Escape characters.

Methods inherited from class net.sf.saxon.event.XMLEmitter

attribute, close, closeStartTag, comment, emptyElementTagCloser, endDocument, getCachedName, namespace, outputCharacterReference, putCachedName, startDocument, testCharacters, usesTypeAnnotations, writeCharSequence, writeDeclaration

Methods inherited from class net.sf.saxon.event.Emitter

getConfiguration, getOutputProperties, getOutputStream, getPipelineConfiguration, getSystemId, getWriter, makeWriter, setOutputProperties, setOutputStream, setPipelineConfiguration, setStreamResult, setSystemId, setUnparsedEntity, setWriter, usesWriter

Methods inherited from class java.lang.Object

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

Constructor Detail

HTMLEmitter

public HTMLEmitter()

Constructor

Method Detail

isEmptyTag

protected static boolean isEmptyTag(String tag)

open

public void open()
          throws XPathException

Output start of document

Specified by:

open in interface Receiver

Overrides:

open in class XMLEmitter

Throws:

XPathException

openDocument

protected void openDocument()
                     throws XPathException

Description copied from class: XMLEmitter

Do the real work of starting the document. This happens when the first content is written.

Overrides:

openDocument in class XMLEmitter

Throws:

XPathException

writeDocType

protected void writeDocType(String type,
                            String systemId,
                            String publicId)
                     throws XPathException

Output the document type declaration

Overrides:

writeDocType in class XMLEmitter

Parameters:

type - The element name

systemId - The DOCTYP system identifier

publicId - The DOCTYPE public identifier

Throws:

XPathException

startElement

public void startElement(int nameCode,
                         int typeCode,
                         int locationId,
                         int properties)
                  throws XPathException

Output element start tag

Specified by:

startElement in interface Receiver

Overrides:

startElement in class XMLEmitter

Parameters:

nameCode - integer code identifying the name of the element within the name pool.

typeCode - integer code identifying the element's type within the name pool. The value -1 indicates the default type, xs:untyped.

locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.

properties - bit-significant properties of the element node. If there are no revelant properties, zero is supplied. The definitions of the bits are in class ReceiverOptions

Throws:

XPathException

startContent

public void startContent()
                  throws XPathException

Description copied from interface: Receiver

Notify the start of the content, that is, the completion of all attributes and namespaces. Note that the initial receiver of output from XSLT instructions will not receive this event, it has to detect it itself. Note that this event is reported for every element even if it has no attributes, no namespaces, and no content.

Specified by:

startContent in interface Receiver

Overrides:

startContent in class XMLEmitter

Throws:

XPathException

writeAttribute

protected void writeAttribute(int elCode,
                              String attname,
                              CharSequence value,
                              int properties)
                       throws XPathException

Write attribute name=value pair. Overrides the XML behaviour if the name and value are the same (we assume this is a boolean attribute to be minimised), or if the value is a URL.

Overrides:

writeAttribute in class XMLEmitter

Parameters:

elCode - The element name is not used in this version of the method, but is used in the HTML subclass.

attname - The attribute name, which has already been validated to ensure it can be written in this encoding

value - The value of the attribute

properties - Any special properties of the attribute

Throws:

XPathException

writeEscape

protected void writeEscape(CharSequence chars,
                           boolean inAttribute)
                    throws IOException,
                           XPathException

Escape characters. Overrides the XML behaviour

Overrides:

writeEscape in class XMLEmitter

Parameters:

chars - The character sequence containing the string

inAttribute - Set to true if the text is in an attribute value

Throws:

IOException

XPathException

endElement

public void endElement()
                throws XPathException

Output an element end tag.

Specified by:

endElement in interface Receiver

Overrides:

endElement in class XMLEmitter

Throws:

XPathException

characters

public void characters(CharSequence chars,
                       int locationId,
                       int properties)
                throws XPathException

Character data.

Specified by:

characters in interface Receiver

Overrides:

characters in class XMLEmitter

Parameters:

chars - The characters

locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.

properties - Bit significant value. The following bits are defined:

DISABLE_ESCAPING

Disable escaping for this text node

USE_CDATA

Output as a CDATA section

Throws:

XPathException

processingInstruction

public void processingInstruction(String target,
                                  CharSequence data,
                                  int locationId,
                                  int properties)
                           throws XPathException

Handle a processing instruction.

Specified by:

processingInstruction in interface Receiver

Overrides:

processingInstruction in class XMLEmitter

Parameters:

target - The PI name. This must be a legal name (it will not be checked).

data - The data portion of the processing instruction

locationId - an integer which can be interpreted using a LocationProvider to return information such as line number and system ID. If no location information is available, the value zero is supplied.

properties - Additional information about the PI. The following bits are defined:

CHECKED

Data is known to be legal (e.g. doesn't contain "?>")

Throws:

XPathException