Package org.pipservices3.expressions.calculator.tokenizers

Class ExpressionWordState

java.lang.Object

org.pipservices3.expressions.tokenizers.generic.GenericWordState

org.pipservices3.expressions.calculator.tokenizers.ExpressionWordState

All Implemented Interfaces:

ITokenizerState, IWordState

public class ExpressionWordState
extends GenericWordState

Field Summary

Fields

Modifier and Type	Field	Description
final String[]	keywords	Supported expression keywords.

Constructor Summary

Constructors

Constructor	Description
ExpressionWordState()	Constructs an instance of this class.

Method Summary

Modifier and Type	Method	Description
Token	nextToken(IScanner scanner, ITokenizer tokenizer)	Gets the next token from the stream started from the character linked to this state.

Methods inherited from class org.pipservices3.expressions.tokenizers.generic.GenericWordState

clearWordChars, setWordChars

Methods inherited from class java.lang.Object

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

Field Details

keywords

public final String[] keywords

Supported expression keywords.

Constructor Details

ExpressionWordState

public ExpressionWordState()
                    throws Exception

Constructs an instance of this class.

Throws:

Exception

Method Details

nextToken

public Token nextToken(IScanner scanner,
 ITokenizer tokenizer)
                throws Exception

Gets the next token from the stream started from the character linked to this state.

Specified by:

nextToken in interface ITokenizerState

Overrides:

nextToken in class GenericWordState

Parameters:

scanner - A textual string to be tokenized.

tokenizer - A tokenizer class that controls the process.

Returns:

The next token from the top of the stream.

Throws:

Exception