Scanner (HTML Parser 1.6)

All Known Implementing Classes:

CompositeTagScanner, JspScanner, ScriptScanner, StyleScanner, TagScanner
```
public interface Scanner
```
Generic interface for scanning. Tags needing specialized operations can provide an object that implements this interface via getThisScanner(). By default non-composite tags simply perform the semantic action and return while composite tags will gather their children.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  Tag scan(Tag tag, Lexer lexer, NodeList stack)
  Scan the tag.

- Method Detail
  - scan
```
Tag scan(Tag tag,
         Lexer lexer,
         NodeList stack)
  throws ParserException
```
    Scan the tag. The Lexer is provided in order to do a lookahead operation.
    
    Parameters:
    
    tag - HTML tag to be scanned for identification.
    
    lexer - Provides html page access.
    
    stack - The parse stack. May contain pending tags that enclose this tag. Nodes on the stack should be considered incomplete.
    
    Returns:
    
    The resultant tag (may be unchanged).
    
    Throws:
    
    ParserException - if an unrecoverable problem occurs.