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Class TagScanner

  extended by org.htmlparser.scanners.TagScanner
All Implemented Interfaces:
Serializable, Scanner
Direct Known Subclasses:
CompositeTagScanner, JspScanner

public class TagScanner
extends Object
implements Scanner, Serializable

TagScanner is an abstract superclass, subclassed to create specific scanners. When asked to scan the tag, this class does nothing other than perform the tag's semantic action. Use TagScanner when you have a meta task to do like setting the BASE url for the page when a BASE tag is encountered. If you want to match end tags and handle special syntax between tags, then you'll probably want to subclass CompositeTagScanner instead.

See Also:
Serialized Form

Constructor Summary
          Create a (non-composite) tag scanner.
Method Summary
 Tag scan(Tag tag, Lexer lexer, NodeList stack)
          Scan the tag.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public TagScanner()
Create a (non-composite) tag scanner.

Method Detail


public Tag scan(Tag tag,
                Lexer lexer,
                NodeList stack)
         throws ParserException
Scan the tag. For this implementation, the only operation is to perform the tag's semantic action.

Specified by:
scan in interface Scanner
tag - The tag to scan.
lexer - Provides html page access.
stack - The parse stack. May contain pending tags that enclose this tag.
The resultant tag (may be unchanged).
ParserException - if an unrecoverable problem occurs.

© 2006 Derrick Oswald
Sep 17, 2006

HTML Parser is an open source library released under Common Public License.