com.icl.saxon
Class Stripper

java.lang.Object
  |
  +--com.icl.saxon.output.ProxyEmitter
        |
        +--com.icl.saxon.Stripper

All Implemented Interfaces:

Emitter

public class Stripper

extends ProxyEmitter

The Stripper class maintains details of which elements need to be stripped. The code is written to act as a SAX filter to do the stripping. It also includes a free-standing method to strip an existing tree.

Fields inherited from class com.icl.saxon.output.ProxyEmitter

baseEmitter, characterSet, namePool, outputDetails, writer

Constructor Summary

Stripper()
create a Stripper and initialise variables

Method Summary

void	addRule(NodeTest p, boolean preserve, int precedence) Add a rule defining which white space is preserved / stripped.
void	characters(char[] ch, int start, int length) Callback interface for SAX: not for application use
void	endElement(int nameCode) Callback interface for SAX: not for application use
boolean	getPreserveAll() Determine if all whitespace is to be preserved (in this case, no further testing is needed)
boolean	isSpacePreserving(int nameCode) Decide whether an element is in the set of white-space preserving element types
void	setController(Controller controller) Set the Controller to be used
void	setStylesheetRules(NamePool namePool) Set the rules appropriate for whitespace-stripping in a stylesheet
void	startDocument() Callback interface for SAX: not for application use
void	startElement(int nameCode, org.xml.sax.Attributes atts, int[] namespaces, int nscount) Callback interface for SAX: not for application use

Methods inherited from class com.icl.saxon.output.ProxyEmitter

comment, endDocument, processingInstruction, setCharacterSet, setDocumentLocator, setEscaping, setNamePool, setOutputDetails, setUnderlyingEmitter, setUnparsedEntity, setWriter

Methods inherited from class java.lang.Object

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

Constructor Detail

Stripper

public Stripper()

create a Stripper and initialise variables

Method Detail

setController

public void setController(Controller controller)

Set the Controller to be used

setStylesheetRules

public void setStylesheetRules(NamePool namePool)

Set the rules appropriate for whitespace-stripping in a stylesheet

addRule

public void addRule(NodeTest p,
                    boolean preserve,
                    int precedence)

Add a rule defining which white space is preserved / stripped.

Parameters:

NodeTest - The condition to be satisfied

int - precedence: the import precedence of this rule

preserve - true: preserve space for this element;
false: strip space for this element

isSpacePreserving

public boolean isSpacePreserving(int nameCode)

Decide whether an element is in the set of white-space preserving element types

Parameters:

uri - The namespace URI of the element name

localname - The local part of the element name

Returns:

true if the element is in the set of white-space preserving element types

startDocument

public void startDocument()
                   throws org.xml.sax.SAXException

Callback interface for SAX: not for application use

Overrides:

startDocument in class ProxyEmitter

startElement

public void startElement(int nameCode,
                         org.xml.sax.Attributes atts,
                         int[] namespaces,
                         int nscount)
                  throws org.xml.sax.SAXException

Callback interface for SAX: not for application use

Overrides:

startElement in class ProxyEmitter

Following copied from interface: com.icl.saxon.output.Emitter

Parameters:

namespaces - Array of namespace codes identifying the namespace prefix/uri pairs associated with this element

nscount - Number of significant entries within namespaces array

endElement

public void endElement(int nameCode)
                throws org.xml.sax.SAXException

Callback interface for SAX: not for application use

Overrides:

endElement in class ProxyEmitter

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws org.xml.sax.SAXException

Callback interface for SAX: not for application use

Overrides:

characters in class ProxyEmitter

getPreserveAll

public boolean getPreserveAll()

Determine if all whitespace is to be preserved (in this case, no further testing is needed)