LexicalElementAnalyzer (ScriptBasic for Java 2.0.0 API)

All Known Implementing Classes:

AbstractElementAnalyzer, BasicString, ConstAwareIdentifier, Decimal, Identifier, MultiCharacter, OneCharacter
```
public interface LexicalElementAnalyzer
```
A Lexical Element Analyzer analyzes the characters coming from a reader and create a LexicalElement from it. If it can not create a lexical element then it pushes back all characters read into the reader and the method read() returns with null.
There are implementation of this interface to recognize string, symbol, identifier, decimal number.

Author:

Peter Verhas

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  LexicalElement read()
  Reads a lexeme and returns the created lexical element.

- Method Detail
  - read
```
LexicalElement read()
             throws AnalysisException
```
    Reads a lexeme and returns the created lexical element.
    If the characters read from the reader show that the lexeme is not the type that the class implementing this interface can handle then the characters are pushed back to he reader and null is returned.
    If the characters read from the reader show that the lexeme is the type that the class implementing this interface can handle, but is erroneous, then the method throws the exception.
    
    Returns:
    
    the created lexeme or null
    
    Throws:
    
    AnalysisException - in case of exception