Package eu.bandm.tools.dtd

Class WhitespaceIgnorer

java.lang.Object

eu.bandm.tools.util.xml.ContentProxy

eu.bandm.tools.dtd.WhitespaceIgnorer

All Implemented Interfaces:

ContentHandler

public class WhitespaceIgnorer
extends ContentProxy

A Sax filter which recognizes character data as "ignorable white space", according to a dtd, and feeds them into ContentHandler.ignorableWhitespace(char[], int, int). Currently only used in xantlrtdom.TdomReader ATTENTION does not care for namespaces, but requires "qname" (i.e. prefix plus ":" plus localname) of the SAX event to be identical to the element name in the DTD.

Field Summary

Fields inherited from class eu.bandm.tools.util.xml.ContentProxy

out

Constructor Summary

Constructors

Constructor	Description
WhitespaceIgnorer(DTD.Dtd dtd, ContentHandler out)	Only constructor.

Method Summary

Modifier and Type	Method	Description
void	characters(char[] ch, int start, int len)
void	endElement(String uri, String localName, String qName)
static boolean	ignorable(char[] ch, int start, int len)	Fundamental predicate, decides whether character data is whitespace.
static boolean	ignorable(String s)
void	startElement(String uri, String localName, String qName, Attributes attrs)

Methods inherited from class eu.bandm.tools.util.xml.ContentProxy

endDocument, endPrefixMapping, ignorableWhitespace, processingInstruction, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.xml.sax.ContentHandler

declaration

Constructor Details

WhitespaceIgnorer

public WhitespaceIgnorer(DTD.Dtd dtd,
 ContentHandler out)

Only constructor.

Parameters:

dtd - the dtd which rules the ignoring/respecting of whitespace.

out - target to which the sax events will be propagated.

Method Details

startElement

public void startElement(String uri,
 String localName,
 String qName,
 Attributes attrs)
                  throws SAXException

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class ContentProxy

Throws:

SAXException

characters

public void characters(char[] ch,
 int start,
 int len)
                throws SAXException

Specified by:

characters in interface ContentHandler

Overrides:

characters in class ContentProxy

Throws:

SAXException

ignorable

public static boolean ignorable(char[] ch,
 int start,
 int len)

Fundamental predicate, decides whether character data is whitespace. This is according to the xml standard "x20,x09,x0A,x0D". (see [XSLT 1.0:3.4]) Nevertheless "x0D" and "x0Dx0A" should have been replaced by a single "x0A" in advance!

ignorable

public static boolean ignorable(String s)

endElement

public void endElement(String uri,
 String localName,
 String qName)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class ContentProxy

Throws:

SAXException