net.sf.saxon.event
Class HTMLURIEscaper

java.lang.Object
  net.sf.saxon.event.SequenceReceiver
      net.sf.saxon.event.ProxyReceiver
          net.sf.saxon.event.HTMLURIEscaper

All Implemented Interfaces:

Result, Receiver

Direct Known Subclasses:

XHTMLURIEscaper

public class HTMLURIEscaper
extends ProxyReceiver

This class is used as a filter on the serialization pipeline; it performs the function of escaping URI-valued attributes in HTML

Author:

Michael H. Kay

Field Summary

protected int	currentElement
protected boolean	escapeURIAttributes
protected NamePool	pool

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

nextReceiver

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

HTMLURIEscaper()

Method Summary

void	attribute(int nameCode, int typeCode, CharSequence value, int locationId, int properties) Notify an attribute.
static CharSequence	escapeURL(CharSequence url, boolean normalize) Escape a URI according to the HTML rules: that is, a non-ASCII character (specifically, a character outside the range 32 - 126) is replaced by the %HH encoding of the octets in its UTF-8 representation
boolean	isUrlAttribute(int element, int attribute)
void	startDocument(int properties) Start of a document node.
void	startElement(int nameCode, int typeCode, int locationId, int properties) Notify the start of an element

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

append, characters, close, comment, endDocument, endElement, getConfiguration, getDocumentLocator, getNamePool, getUnderlyingReceiver, namespace, open, processingInstruction, setPipelineConfiguration, setSystemId, setUnderlyingReceiver, setUnparsedEntity, startContent, usesTypeAnnotations

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

getPipelineConfiguration, getSystemId

Methods inherited from class java.lang.Object

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

Field Detail

currentElement

protected int currentElement

escapeURIAttributes

protected boolean escapeURIAttributes

pool

protected NamePool pool

Constructor Detail

HTMLURIEscaper

public HTMLURIEscaper()

Method Detail

isUrlAttribute

public boolean isUrlAttribute(int element,
                              int attribute)

startDocument

public void startDocument(int properties)
                   throws XPathException

Start of a document node.

Specified by:

startDocument in interface Receiver

Overrides:

startDocument in class ProxyReceiver

Parameters:

properties - bit-significant integer indicating properties of the document node. The definitions of the bits are in class ReceiverOptions

Throws:

XPathException

startElement

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

Notify the start of an element

Specified by:

startElement in interface Receiver

Overrides:

startElement in class ProxyReceiver

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.

properties - properties of the element node

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.

Throws:

XPathException

attribute

public void attribute(int nameCode,
                      int typeCode,
                      CharSequence value,
                      int locationId,
                      int properties)
               throws XPathException

Notify an attribute. Attributes are notified after the startElement event, and before any children. Namespaces and attributes may be intermingled.

Specified by:

attribute in interface Receiver

Overrides:

attribute in class ProxyReceiver

Parameters:

nameCode - The name of the attribute, as held in the name pool

typeCode - The type of the attribute, as held in the name pool

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

DISABLE_ESCAPING

Disable escaping for this attribute

NO_SPECIAL_CHARACTERS

Attribute value contains no special characters

value - the string value of the attribute

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.

Throws:

IllegalStateException: - attempt to output an attribute when there is no open element start tag

XPathException

escapeURL

public static CharSequence escapeURL(CharSequence url,
                                     boolean normalize)

Escape a URI according to the HTML rules: that is, a non-ASCII character (specifically, a character outside the range 32 - 126) is replaced by the %HH encoding of the octets in its UTF-8 representation

Parameters:

url - the URI to be escaped

normalize -

Returns:

the URI after escaping non-ASCII characters