com.nwalsh.saxon
Class LineCountEmitter

java.lang.Object
  com.icl.saxon.output.Emitter
      com.nwalsh.saxon.LineCountEmitter

All Implemented Interfaces:

javax.xml.transform.Result

public class LineCountEmitter
extends com.icl.saxon.output.Emitter

Saxon extension to count the lines in a result tree fragment.

$Id: LineCountEmitter.java,v 1.1 2001/07/16 21:23:57 nwalsh Exp $

Copyright (C) 2000 Norman Walsh.

This class provides a Saxon 6.* implementation to count the number of lines in a result tree fragment.

The general design is this: the stylesheets construct a result tree fragment for some verbatim environment. That result tree fragment is "replayed" through the LineCountEmitter; the LineCountEmitter watches characters go by and counts the number of line feeds that it sees. That number is then returned.

Change Log:

1.0

Initial release.

Version:

$Id: LineCountEmitter.java,v 1.1 2001/07/16 21:23:57 nwalsh Exp $

Author:

Norman Walsh ndw@nwalsh.com

See Also:

Verbatim

Field Summary

protected int

numLines The number of lines seen.

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

locator, namePool, outputProperties, outputStream, systemId, writer

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

LineCountEmitter()
Construct a new LineCountEmitter.

Method Summary

void	characters(char[] chars, int start, int len) Process characters.
void	comment(char[] chars, int start, int length) Discarded.
void	endDocument() Discarded.
void	endElement(int nameCode) Discarded.
int	lineCount() Return the number of lines.
void	processingInstruction(java.lang.String name, java.lang.String data) Discarded.
void	reset() Reset the number of lines.
void	setDocumentLocator(org.xml.sax.Locator locator) Discarded.
void	setEscaping(boolean escaping) Discarded.
void	setNamePool(com.icl.saxon.om.NamePool namePool) Discarded.
void	setUnparsedEntity(java.lang.String name, java.lang.String uri) Discarded.
void	setWriter(java.io.Writer writer) Discarded.
void	startDocument() Discarded.
void	startElement(int nameCode, org.xml.sax.Attributes attributes, int[] namespaces, int nscount) Discarded.

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

getNamePool, getOutputProperties, getOutputStream, getSystemId, getWriter, makeEmitter, setOutputProperties, setOutputStream, setSystemId, usesWriter

Methods inherited from class java.lang.Object

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

Field Detail

numLines

protected int numLines

The number of lines seen.

Constructor Detail

LineCountEmitter

public LineCountEmitter()

Construct a new LineCountEmitter.

Method Detail

reset

public void reset()

Reset the number of lines.

lineCount

public int lineCount()

Return the number of lines.

characters

public void characters(char[] chars,
                       int start,
                       int len)
                throws javax.xml.transform.TransformerException

Process characters.

Specified by:

characters in class com.icl.saxon.output.Emitter

Throws:

javax.xml.transform.TransformerException

comment

public void comment(char[] chars,
                    int start,
                    int length)
             throws javax.xml.transform.TransformerException

Discarded.

Specified by:

comment in class com.icl.saxon.output.Emitter

Throws:

javax.xml.transform.TransformerException

endDocument

public void endDocument()
                 throws javax.xml.transform.TransformerException

Discarded.

Specified by:

endDocument in class com.icl.saxon.output.Emitter

Throws:

javax.xml.transform.TransformerException

endElement

public void endElement(int nameCode)
                throws javax.xml.transform.TransformerException

Discarded.

Specified by:

endElement in class com.icl.saxon.output.Emitter

Throws:

javax.xml.transform.TransformerException

processingInstruction

public void processingInstruction(java.lang.String name,
                                  java.lang.String data)
                           throws javax.xml.transform.TransformerException

Discarded.

Specified by:

processingInstruction in class com.icl.saxon.output.Emitter

Throws:

javax.xml.transform.TransformerException

setDocumentLocator

public void setDocumentLocator(org.xml.sax.Locator locator)

Discarded.

Overrides:

setDocumentLocator in class com.icl.saxon.output.Emitter

setEscaping

public void setEscaping(boolean escaping)
                 throws javax.xml.transform.TransformerException

Discarded.

Overrides:

setEscaping in class com.icl.saxon.output.Emitter

Throws:

javax.xml.transform.TransformerException

setNamePool

public void setNamePool(com.icl.saxon.om.NamePool namePool)

Discarded.

Overrides:

setNamePool in class com.icl.saxon.output.Emitter

setUnparsedEntity

public void setUnparsedEntity(java.lang.String name,
                              java.lang.String uri)
                       throws javax.xml.transform.TransformerException

Discarded.

Overrides:

setUnparsedEntity in class com.icl.saxon.output.Emitter

Throws:

javax.xml.transform.TransformerException

setWriter

public void setWriter(java.io.Writer writer)

Discarded.

Overrides:

setWriter in class com.icl.saxon.output.Emitter

startDocument

public void startDocument()
                   throws javax.xml.transform.TransformerException

Discarded.

Specified by:

startDocument in class com.icl.saxon.output.Emitter

Throws:

javax.xml.transform.TransformerException

startElement

public void startElement(int nameCode,
                         org.xml.sax.Attributes attributes,
                         int[] namespaces,
                         int nscount)
                  throws javax.xml.transform.TransformerException

Discarded.

Specified by:

startElement in class com.icl.saxon.output.Emitter

Throws:

javax.xml.transform.TransformerException