Class HTMLEmitter

All Implemented Interfaces:
Result, Receiver

public class HTMLEmitter extends XMLEmitter
This class generates HTML output
Author:
Michael H. Kay
  • Field Details

    • emptyTags

      static HTMLTagHashSet emptyTags
      Table of HTML tags that have no closing tag
  • Constructor Details

    • HTMLEmitter

      public HTMLEmitter()
      Constructor
  • Method Details

    • isEmptyTag

      protected static boolean isEmptyTag(String tag)
    • open

      public void open() throws XPathException
      Output start of document
      Specified by:
      open in interface Receiver
      Overrides:
      open in class XMLEmitter
      Throws:
      XPathException
    • openDocument

      protected void openDocument() throws XPathException
      Description copied from class: XMLEmitter
      Do the real work of starting the document. This happens when the first content is written.
      Overrides:
      openDocument in class XMLEmitter
      Throws:
      XPathException
    • startElement

      public void startElement(int nameCode, int typeCode, int locationId, int properties) throws XPathException
      Output element start tag
      Specified by:
      startElement in interface Receiver
      Overrides:
      startElement in class XMLEmitter
      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. The value -1 indicates the default type, xdt:untyped.
      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.
      properties - bit-significant properties of the element node. If there are no revelant properties, zero is supplied.
      Throws:
      XPathException
    • startContent

      public void startContent() throws XPathException
      Description copied from interface: Receiver
      Notify the start of the content, that is, the completion of all attributes and namespaces. Note that the initial receiver of output from XSLT instructions will not receive this event, it has to detect it itself. Note that this event is reported for every element even if it has no attributes, no namespaces, and no content.
      Specified by:
      startContent in interface Receiver
      Overrides:
      startContent in class XMLEmitter
      Throws:
      XPathException
    • writeAttribute

      protected void writeAttribute(int elCode, String attname, CharSequence value, int properties) throws XPathException
      Write attribute name=value pair. Overrides the XML behaviour if the name and value are the same (we assume this is a boolean attribute to be minimised), or if the value is a URL.
      Overrides:
      writeAttribute in class XMLEmitter
      Parameters:
      elCode - The element name is not used in this version of the method, but is used in the HTML subclass.
      attname - The attribute name, which has already been validated to ensure it can be written in this encoding
      value - The value of the attribute
      properties - Any special properties of the attribute
      Throws:
      XPathException
    • writeEscape

      protected void writeEscape(CharSequence chars, boolean inAttribute) throws IOException, XPathException
      Escape characters. Overrides the XML behaviour
      Overrides:
      writeEscape in class XMLEmitter
      Parameters:
      chars - The character sequence containing the string
      inAttribute - Set to true if the text is in an attribute value
      Throws:
      IOException
      XPathException
    • endElement

      public void endElement() throws XPathException
      Output an element end tag.
      Specified by:
      endElement in interface Receiver
      Overrides:
      endElement in class XMLEmitter
      Throws:
      XPathException
    • characters

      public void characters(CharSequence chars, int locationId, int properties) throws XPathException
      Character data.
      Specified by:
      characters in interface Receiver
      Overrides:
      characters in class XMLEmitter
      Parameters:
      chars - The characters
      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.
      properties - Bit significant value. The following bits are defined:
      DISABLE_ESCAPING
      Disable escaping for this text node
      USE_CDATA
      Output as a CDATA section
      NO_SPECIAL_CHARACTERS
      Value contains no special characters
      WHITESPACE
      Text is all whitespace
      Throws:
      XPathException
    • processingInstruction

      public void processingInstruction(String target, CharSequence data, int locationId, int properties) throws XPathException
      Handle a processing instruction.
      Specified by:
      processingInstruction in interface Receiver
      Overrides:
      processingInstruction in class XMLEmitter
      Parameters:
      target - The PI name. This must be a legal name (it will not be checked).
      data - The data portion of the processing instruction
      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.
      properties - Additional information about the PI. The following bits are defined:
      CHECKED
      Data is known to be legal (e.g. doesn't contain "?>")
      Throws:
      XPathException