net.sf.saxon.serialize
Class HTMLURIEscaper

java.lang.Object
  extended by net.sf.saxon.event.SequenceReceiver
      extended by net.sf.saxon.event.ProxyReceiver
          extended by net.sf.saxon.serialize.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  NodeName 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(Receiver nextReceiver)
           
 
Method Summary
 void attribute(NodeName nameCode, SimpleType typeCode, CharSequence value, int locationId, int properties)
          Notify an attribute.
static CharSequence escapeURL(CharSequence url, boolean normalize, Configuration config)
          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(NodeName element, NodeName attribute)
           
 void startDocument(int properties)
          Start of a document node.
 void startElement(NodeName nameCode, SchemaType 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, getNamePool, getUnderlyingReceiver, namespace, open, processingInstruction, setPipelineConfiguration, setSystemId, setUnderlyingReceiver, setUnparsedEntity, startContent, usesTypeAnnotations
 
Methods inherited from class net.sf.saxon.event.SequenceReceiver
append, getConfiguration, getPipelineConfiguration, getSystemId
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

currentElement

protected NodeName currentElement

escapeURIAttributes

protected boolean escapeURIAttributes

pool

protected NamePool pool
Constructor Detail

HTMLURIEscaper

public HTMLURIEscaper(Receiver nextReceiver)
Method Detail

isUrlAttribute

public boolean isUrlAttribute(NodeName element,
                              NodeName 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 - if an error occurs

startElement

public void startElement(NodeName nameCode,
                         SchemaType 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 - if an error occurs

attribute

public void attribute(NodeName nameCode,
                      SimpleType 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 - if an error occurs

escapeURL

public static CharSequence escapeURL(CharSequence url,
                                     boolean normalize,
                                     Configuration config)
                              throws XPathException
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
Throws:
XPathException


Copyright (c) 2004-2011 Saxonica Limited. All rights reserved.