LexicalAnalyzer (ScriptBasic for Java 2.0.0 API)

All Known Subinterfaces:

LineOrientedLexicalAnalyzer

All Known Implementing Classes:

BasicLexicalAnalyzer, ScriptBasicLexicalAnalyzer
```
public interface LexicalAnalyzer
```
A generic lexical analyzer that reads the characters from a reader and returns the LexicalElements one after the other.
The actual implementation specifies what lexical elements that identifies and returns.

Author:

Peter Verhas

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`LexicalElement`	`get()`	Get the next lexical element from the input stream.
`LexicalElement`	`peek()`	Peek at the next lexical element and do not remove it from the input stream.
`void`	`registerElementAnalyzer(LexicalElementAnalyzer lea)`	Register a lexical element analyzer.

- Method Detail
  - get
```
LexicalElement get()
            throws AnalysisException
```
    Get the next lexical element from the input stream. If there are no more lexical elements then return null
    
    Returns:
    
    return the next lexical element
    
    Throws:
    
    AnalysisException - in case there is an exception
  - peek
```
LexicalElement peek()
             throws AnalysisException
```
    Peek at the next lexical element and do not remove it from the input stream. Consecutive calls to peek() without calling get() will return the same lexical element. Calling get() will return the same lexical element as the last call to peek().
    Just as get() this method may also return null if there are no more elements.
    
    Returns:
    
    the next lexical element
    
    Throws:
    
    AnalysisException - in case of exception
  - registerElementAnalyzer
```
void registerElementAnalyzer(LexicalElementAnalyzer lea)
```
    Register a lexical element analyzer. The lexical element analyzers are consulted in the order they are registered to match a lexeme.
    
    Parameters:
    
    lea - parameter