com.webmethods.rtl.markup.html.parser

Class HTMLParser

java.lang.Object

com.webmethods.rtl.markup.xml.parser.BaseParser

com.webmethods.rtl.markup.html.parser.HTMLParser

All Implemented Interfaces:

XMLReader

public class HTMLParser
extends BaseParser

SAX parser that parses non-well-formed html. Only one thread at a time may use this parser.

Field Summary

Fields

Modifier and Type	Field and Description
static int	ELEMENT_TYPE_EMPTY Empty element.
static int	ELEMENT_TYPE_FORM Element that doesn't have to follow any nesting rules or even be well-formed.
static int	ELEMENT_TYPE_INLINE Inline element.
static int	ELEMENT_TYPE_LI List item closed by any other li element.
static int	ELEMENT_TYPE_LIST Block element closed by an element of the same type.
static int	ELEMENT_TYPE_NESTED Block element that can be nested.
static int	ELEMENT_TYPE_P Block element closed by any other block element.
static int	ELEMENT_TYPE_SCRIPT Block element that doesn't contain markup.
static int	ELEMENT_TYPE_TABLE Table element (other than table) closed by any other table element.
static int	ELEMENT_TYPE_WHATEVER Element can be either inline or block or whatever.
static Map	HTMLElementTypes
static Map	HTMLEntities
protected AttributesImpl	m_attrs
protected char[]	m_buf
protected List	m_elemStack

Fields inherited from class com.webmethods.rtl.markup.xml.parser.BaseParser

ACCEPT_CHARSET, CONTENT_CHARSET, DEFAULT_CHARSET, m_contentHandler, m_dtdHandler, m_entityResolver, m_errorHandler, m_features, m_lexicalHandler, m_properties, m_recognizedFeatures, m_recognizedProperties, PROPERTY_LEXICAL_HANDLER

Constructor Summary

Constructors

Constructor and Description
HTMLParser()

Method Summary

Modifier and Type	Method and Description
protected int	append(char[] buf, int off, int ch) Appends the specified char to the specified buf at the specified offset.
protected int	append(char[] buf, int off, String ch) Appends the specified string to the specified buf at the specified offset.
protected int	appendComment(char[] buf, int off, int ch) Appends the specified char to the specified buf at the specified offset.
protected int	appendEntityRef(char[] buf, int off, String ref) Appends the specified string to the specified buf at the specified offset -- or reports the entity ref.
protected void	closeOptionalElements(List elemStack, String curElem)
protected int	flush(char[] buf, int off) Flushes chars to content handler.
protected boolean	isEmptyElement(String curElem)
protected boolean	isFormElement(String curElem)
protected boolean	isScriptElement(String curElem)
void	parse(InputSource input) Parse an XML document.
protected int	parseCharRef(Reader src, char[] buf, int off) Decodes char ref starting after &# (ie '169;' or 'xa0;').

Methods inherited from class com.webmethods.rtl.markup.xml.parser.BaseParser

getCharacterStream, getContentHandler, getDTDHandler, getEntityResolver, getErrorHandler, getFeature, getProperty, parse, setContentHandler, setDTDHandler, setEntityResolver, setErrorHandler, setFeature, setProperty

Methods inherited from class java.lang.Object

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

Field Detail

ELEMENT_TYPE_WHATEVER

public static final int ELEMENT_TYPE_WHATEVER

Element can be either inline or block or whatever.

See Also:

Constant Field Values

ELEMENT_TYPE_EMPTY

public static final int ELEMENT_TYPE_EMPTY

Empty element. For example, br.

See Also:

Constant Field Values

ELEMENT_TYPE_INLINE

public static final int ELEMENT_TYPE_INLINE

Inline element. For example, span.

See Also:

Constant Field Values

ELEMENT_TYPE_P

public static final int ELEMENT_TYPE_P

Block element closed by any other block element. For example, p.

See Also:

Constant Field Values

ELEMENT_TYPE_TABLE

public static final int ELEMENT_TYPE_TABLE

Table element (other than table) closed by any other table element. For example, thead, tr, or td.

See Also:

Constant Field Values

ELEMENT_TYPE_LI

public static final int ELEMENT_TYPE_LI

List item closed by any other li element. For example, li, dt, or dd.

See Also:

Constant Field Values

ELEMENT_TYPE_LIST

public static final int ELEMENT_TYPE_LIST

Block element closed by an element of the same type. For example, address.

See Also:

Constant Field Values

ELEMENT_TYPE_NESTED

public static final int ELEMENT_TYPE_NESTED

Block element that can be nested. For example, div.

See Also:

Constant Field Values

ELEMENT_TYPE_SCRIPT

public static final int ELEMENT_TYPE_SCRIPT

Block element that doesn't contain markup. For example, script or style.

See Also:

Constant Field Values

ELEMENT_TYPE_FORM

public static final int ELEMENT_TYPE_FORM

Element that doesn't have to follow any nesting rules or even be well-formed.

See Also:

Constant Field Values

m_buf

protected char[] m_buf

m_elemStack

protected List m_elemStack

m_attrs

protected AttributesImpl m_attrs

HTMLElementTypes

public static Map HTMLElementTypes

HTMLEntities

public static Map HTMLEntities

Constructor Detail

HTMLParser

public HTMLParser()

Method Detail

parse

public void parse(InputSource input)
           throws IOException,
                  SAXException

Parse an XML document.

The application can use this method to instruct the XML reader to begin parsing an XML document from any valid input source (a character stream, a byte stream, or a URI).

Applications may not invoke this method while a parse is in progress (they should create a new XMLReader instead for each nested XML document). Once a parse is complete, an application may reuse the same XMLReader object, possibly with a different input source.

During the parse, the XMLReader will provide information about the XML document through the registered event handlers.

This method is synchronous: it will not return until parsing has ended. If a client application wants to terminate parsing early, it should throw an exception.

Parameters:

input - The input source for the top-level of the XML document.

Throws:

SAXException - Any SAX exception, possibly wrapping another exception.

IOException - An IO exception from the parser, possibly from a byte stream or character stream supplied by the application.

See Also:

InputSource, BaseParser.parse(String), BaseParser.setEntityResolver(org.xml.sax.EntityResolver), BaseParser.setDTDHandler(org.xml.sax.DTDHandler), BaseParser.setContentHandler(org.xml.sax.ContentHandler), BaseParser.setErrorHandler(org.xml.sax.ErrorHandler)

flush

protected int flush(char[] buf,
                    int off)
             throws IOException,
                    SAXException

Flushes chars to content handler. Returns the new offset (ie 0).

Throws:

IOException

SAXException

appendComment

protected int appendComment(char[] buf,
                            int off,
                            int ch)
                     throws IOException,
                            SAXException

Appends the specified char to the specified buf at the specified offset. Returns the new offset. If the buf is full, flushes buf to configured content handler.

Throws:

IOException

SAXException

append

protected int append(char[] buf,
                     int off,
                     int ch)
              throws IOException,
                     SAXException

Appends the specified char to the specified buf at the specified offset. Returns the new offset. If the buf is full, flushes buf to configured content handler.

Throws:

IOException

SAXException

append

protected int append(char[] buf,
                     int off,
                     String ch)
              throws IOException,
                     SAXException

Appends the specified string to the specified buf at the specified offset. Returns the new offset. If the buf is full, flushes buf to configured content handler.

Throws:

IOException

SAXException

appendEntityRef

protected int appendEntityRef(char[] buf,
                              int off,
                              String ref)
                       throws IOException,
                              SAXException

Appends the specified string to the specified buf at the specified offset -- or reports the entity ref. Returns the new offset. If the buf is full, flushes buf to configured content handler.

Throws:

IOException

SAXException

parseCharRef

protected int parseCharRef(Reader src,
                           char[] buf,
                           int off)
                    throws IOException,
                           SAXException

Decodes char ref starting after &# (ie '169;' or 'xa0;'). Returns the new offset.

Throws:

IOException

SAXException

isEmptyElement

protected boolean isEmptyElement(String curElem)
                          throws IOException,
                                 SAXException

Throws:

IOException

SAXException

isScriptElement

protected boolean isScriptElement(String curElem)
                           throws IOException,
                                  SAXException

Throws:

IOException

SAXException

isFormElement

protected boolean isFormElement(String curElem)
                         throws IOException,
                                SAXException

Throws:

IOException

SAXException

closeOptionalElements

protected void closeOptionalElements(List elemStack,
                                     String curElem)
                              throws IOException,
                                     SAXException

Throws:

IOException

SAXException