Package org.htmlunit.cyberneko

Class HTMLScanner.ContentScanner

java.lang.Object

org.htmlunit.cyberneko.HTMLScanner.ContentScanner

All Implemented Interfaces:

HTMLScanner.Scanner

Enclosing class:

HTMLScanner

public class HTMLScanner.ContentScanner
extends java.lang.Object
implements HTMLScanner.Scanner

The primary HTML document scanner.

Field Summary

Fields

Modifier and Type	Field	Description
private XMLAttributesImpl	attributes_	Attributes.
private QName	qName_	A qualified name.

Constructor Summary

Constructors

Constructor	Description
ContentScanner()

Method Summary

Modifier and Type	Method	Description
private boolean	changeEncoding(java.lang.String charset)	Tries to change the encoding used to read the input stream to the specified one
protected java.lang.String	nextContent(int len)	Reads the next characters WITHOUT impacting the buffer content up to current offset.
private java.lang.String	removeSpaces(java.lang.String content)	Removes all spaces for the string (remember: JDK 1.3!)
boolean	scan(boolean complete)	Scan.
protected boolean	scanAttribute(XMLAttributesImpl attributes, boolean[] empty)	Scans a real attribute.
protected void	scanAttributeQuotedValue(int currentQuote, HTMLScanner.CurrentEntity currentEntity, XMLString attribValue, XMLString plainAttribValue, boolean normalizeAttributes)
protected void	scanAttributeUnquotedValue(HTMLScanner.CurrentEntity currentEntity, XMLString attribValue, XMLString plainAttribValue)
protected void	scanCDATA()
protected boolean	scanCDataContent(XMLString xmlString)
protected void	scanCharacters()
protected void	scanComment()
protected boolean	scanCommentContent(XMLString buffer)
protected void	scanEndElement()
protected void	scanPI()
private void	scanScriptContent()
protected java.lang.String	scanStartElement(boolean[] empty)	Scans a start element.
private void	scanUntilEndTag(java.lang.String tagName)	Scans the content of : it doesn't get parsed but is considered as plain text when feature HTMLScanner.PARSE_NOSCRIPT_CONTENT is set to false.

Methods inherited from class java.lang.Object

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

Field Detail

qName_

private final QName qName_

A qualified name.

attributes_

private final XMLAttributesImpl attributes_

Attributes.

Constructor Detail

ContentScanner

public ContentScanner()

Method Detail

scan

public boolean scan(boolean complete)
             throws java.io.IOException

Scan.

Specified by:

scan in interface HTMLScanner.Scanner

Parameters:

complete - True if the scanner should not return until scanning is complete.

Returns:

True if additional scanning is required.

Throws:

java.io.IOException - Thrown if I/O error occurs.

scanUntilEndTag

private void scanUntilEndTag(java.lang.String tagName)
                      throws java.io.IOException

Scans the content of

Parameters:

tagName - the tag for which content is scanned (one of "noscript", "noframes", "iframe")

Throws:

java.io.IOException - on error

scanScriptContent

private void scanScriptContent()
                        throws java.io.IOException

Throws:

java.io.IOException

nextContent

protected java.lang.String nextContent(int len)
                                throws java.io.IOException

Reads the next characters WITHOUT impacting the buffer content up to current offset.

Parameters:

len - the number of characters to read

Returns:

the read string (length may be smaller if EOF is encountered)

Throws:

java.io.IOException - in case of io problems

scanCharacters

protected void scanCharacters()
                       throws java.io.IOException

Throws:

java.io.IOException

scanCDATA

protected void scanCDATA()
                  throws java.io.IOException

Throws:

java.io.IOException

scanComment

protected void scanComment()
                    throws java.io.IOException

Throws:

java.io.IOException

scanCommentContent

protected boolean scanCommentContent(XMLString buffer)
                              throws java.io.IOException

Throws:

java.io.IOException

scanCDataContent

protected boolean scanCDataContent(XMLString xmlString)
                            throws java.io.IOException

Throws:

java.io.IOException

scanPI

protected void scanPI()
               throws java.io.IOException

Throws:

java.io.IOException

scanStartElement

protected java.lang.String scanStartElement(boolean[] empty)
                                     throws java.io.IOException

Scans a start element.

Parameters:

empty - Is used for a second return value to indicate whether the start element tag is empty (e.g. "/>").

Returns:

ename

Throws:

java.io.IOException - in case of io problems

removeSpaces

private java.lang.String removeSpaces(java.lang.String content)

Removes all spaces for the string (remember: JDK 1.3!)

changeEncoding

private boolean changeEncoding(java.lang.String charset)

Tries to change the encoding used to read the input stream to the specified one

Parameters:

charset - the charset that should be used

Returns:

true when the encoding has been changed

scanAttribute

protected boolean scanAttribute(XMLAttributesImpl attributes,
                                boolean[] empty)
                         throws java.io.IOException

Scans a real attribute.

Parameters:

attributes - The list of attributes.

empty - Is used for a second return value to indicate whether the start element tag is empty (e.g. "/>").

Returns:

success

Throws:

java.io.IOException - in case of io problems

scanAttributeUnquotedValue

protected void scanAttributeUnquotedValue(HTMLScanner.CurrentEntity currentEntity,
                                          XMLString attribValue,
                                          XMLString plainAttribValue)
                                   throws java.io.IOException

Throws:

java.io.IOException

scanAttributeQuotedValue

protected void scanAttributeQuotedValue(int currentQuote,
                                        HTMLScanner.CurrentEntity currentEntity,
                                        XMLString attribValue,
                                        XMLString plainAttribValue,
                                        boolean normalizeAttributes)
                                 throws java.io.IOException

Throws:

java.io.IOException

scanEndElement

protected void scanEndElement()
                       throws java.io.IOException

Throws:

java.io.IOException