Package ch.andre601.expressionparser.tokens.readers

Class NumberTokenReader

java.lang.Object

ch.andre601.expressionparser.tokens.readers.TokenReader

ch.andre601.expressionparser.tokens.readers.NumberTokenReader

public class NumberTokenReader
extends TokenReader

TokenReader instance that reads the provided text by trying to parse it through a NumberFormatter and creates a NumberToken instance should a valid number be found.

Constructor Summary

Constructors

Constructor	Description
NumberTokenReader(int priority)	Constructor for creating a new NumberTokenReader.

Method Summary

Modifier and Type	Method	Description
Token	read(String text, ParsePosition position, ParseWarnCollector collector)	Takes the provided Text and parses the content from its current position using a NumberFormat instance.

Methods inherited from class ch.andre601.expressionparser.tokens.readers.TokenReader

getPriority

Methods inherited from class java.lang.Object

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

Constructor Details

NumberTokenReader

public NumberTokenReader(int priority)

Constructor for creating a new NumberTokenReader.

Parameters:

priority - The priority this TokenReader should have.

Method Details

read

public Token read(String text,
 ParsePosition position,
 ParseWarnCollector collector)

Takes the provided Text and parses the content from its current position using a NumberFormat instance. Should the new position not be the same as the old and the parsed Number instance not be null, returns a new NumberToken with the retrieved Number instance, else null.
Should a NumberFormatException be raised by the NumberFormat instance's parsing will also a ParseWarnCollector Entry be made containing the exception message.

Specified by:

read in class TokenReader

Parameters:

text - The text to parse.

position - The current position within the text.

collector - Instance of the ParseWarnCollector used for the parsing.

Returns:

Possibly-null Token instance.