Package net.sf.saxon.serialize

Class HTMLEmitter

java.lang.Object

net.sf.saxon.event.SequenceReceiver

net.sf.saxon.serialize.Emitter

net.sf.saxon.serialize.XMLEmitter

net.sf.saxon.serialize.HTMLEmitter

All Implemented Interfaces:

Result, Receiver, ReceiverWithOutputProperties

Direct Known Subclasses:

HTML40Emitter, HTML50Emitter

public abstract class HTMLEmitter
extends XMLEmitter

This class generates HTML output

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static HTMLTagHashSet	emptyTags	Table of HTML tags that have no closing tag
protected int	version

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

attSpecials, canonical, characterReferenceGenerator, declarationIsWritten, delimiter, elementCode, elementStack, indentForNextAttribute, openStartTag, specialInAtt, specialInAttSingle, specialInText, started, startedElement, undeclareNamespaces, unfailing

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

allCharactersEncodable, characterSet, outputProperties, outputStream, streamResult, writer

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

pipelineConfiguration, previousAtomic, systemId

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

Constructors

Constructor	Description
HTMLEmitter()	Constructor

Method Summary

Modifier and Type	Method	Description
void	characters(CharSequence chars, Location locationId, int properties)	Character data.
void	endElement()	Output an element end tag.
protected static boolean	isEmptyTag(String tag)
protected abstract boolean	isHTMLElement(NodeName name)	Decide whether an element is "serialized as an HTML element" in the language of the 3.0 specification
void	open()	Output start of document
protected void	openDocument()	Do the real work of starting the document.
void	processingInstruction(String target, CharSequence data, Location locationId, int properties)	Handle a processing instruction.
protected abstract boolean	rejectControlCharacters()	Ask whether control characters should be rejected: true for HTML4, false for HTML5
protected static void	setEmptyTag(String tag)
void	setEscapeNonAscii(Boolean escape)	Say that all non-ASCII characters should be escaped, regardless of the character encoding
void	startContent()	Notify the start of the content, that is, the completion of all attributes and namespaces.
void	startElement(NodeName elemName, SchemaType typeCode, Location location, int properties)	Output element start tag
protected void	writeAttribute(NodeName elCode, String attname, CharSequence value, int properties)	Write attribute name=value pair.
protected void	writeDocType(NodeName name, String displayName, 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.serialize.XMLEmitter

attribute, close, closeStartTag, comment, convertToAscii, emptyElementTagCloser, endDocument, getAttributeIndentString, isStarted, namespace, setCharacterReferenceGenerator, setIndentForNextAttribute, startDocument, testCharacters, usesTypeAnnotations, writeCharSequence, writeDeclaration, writeDocTypeWithNullSystemId

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

append, getOutputProperties, getOutputStream, getWriter, makeOutputStream, makeWriter, setOutputProperties, setOutputStream, setStreamResult, setUnparsedEntity, setWriter, usesWriter

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

append, decompose, flatten, getConfiguration, getErrorCodeForDecomposingFunctionItems, getNamePool, getPipelineConfiguration, getSystemId, handlesAppend, setPipelineConfiguration, setSystemId

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.event.Receiver

append, getPipelineConfiguration, handlesAppend, setPipelineConfiguration, setSystemId

Methods inherited from interface javax.xml.transform.Result

getSystemId

Field Detail

version

protected int version

emptyTags

static HTMLTagHashSet emptyTags

Table of HTML tags that have no closing tag

Constructor Detail

HTMLEmitter

public HTMLEmitter()

Constructor

Method Detail

setEmptyTag

protected static void setEmptyTag(String tag)

isEmptyTag

protected static boolean isEmptyTag(String tag)

setEscapeNonAscii

public void setEscapeNonAscii(Boolean escape)

Say that all non-ASCII characters should be escaped, regardless of the character encoding

Overrides:

setEscapeNonAscii in class XMLEmitter

Parameters:

escape - true if all non ASCII characters should be escaped

isHTMLElement

protected abstract boolean isHTMLElement(NodeName name)

Decide whether an element is "serialized as an HTML element" in the language of the 3.0 specification

Returns:

true if the element

open

public void open()
          throws XPathException

Output start of document

Specified by:

open in interface Receiver

Overrides:

open in class XMLEmitter

Throws:

XPathException - if an error occurs

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 - f an error occurs opening the output file

writeDocType

protected void writeDocType(NodeName name,
                            String displayName,
                            String systemId,
                            String publicId)
                     throws XPathException

Output the document type declaration

Overrides:

writeDocType in class XMLEmitter

Parameters:

displayName - The element name

systemId - The DOCTYPE system identifier

publicId - The DOCTYPE public identifier

name - the qualified name of the element

Throws:

XPathException - if an error occurs writing to the output

startElement

public void startElement(NodeName elemName,
                         SchemaType typeCode,
                         Location location,
                         int properties)
                  throws XPathException

Output element start tag

Specified by:

startElement in interface Receiver

Overrides:

startElement in class XMLEmitter

Parameters:

elemName - the name of the element.

typeCode - the type annotation of the element.

location - an object providing information about the module, line, and column where the node originated

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 - if an error occurs

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 - if an error occurs

writeAttribute

protected void writeAttribute(NodeName 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 - if an error occurs

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 - if an error occurs

characters

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

Character data.

Specified by:

characters in interface Receiver

Overrides:

characters in class XMLEmitter

Parameters:

chars - The characters

locationId - provides information such as line number and system ID.

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 - if an error occurs

processingInstruction

public void processingInstruction(String target,
                                  CharSequence data,
                                  Location 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 - provides information such as line number and system ID.

properties - Additional information about the PI.

Throws:

XPathException - if an error occurs

rejectControlCharacters

protected abstract boolean rejectControlCharacters()

Ask whether control characters should be rejected: true for HTML4, false for HTML5

Returns:

true if control characters should be rejected