Class NegatedNumberReader

java.lang.Object

ch.andre601.expressionparser.parsers.ValueReader

ch.andre601.expressionparser.parsers.NegatedNumberReader

public class NegatedNumberReader
extends ValueReader

ValueReader creating a negated ExpressionTemplate should the first token be the provided one.

Constructor Summary

Constructors

Constructor	Description
NegatedNumberReader(Token negationToken)	Sets the Token that this ValueReader should look for.

Method Summary

Modifier and Type	Method	Description
ExpressionTemplate	read(ExpressionTemplateParser parser, List<Token> tokens, ParseWarnCollector collector)	Takes the first token of the list of Tokens and returns a ExpressionTemplate who's number value is negated, if the retrieved Token is the set negation Token, or null.

Methods inherited from class java.lang.Object

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

Constructor Details

NegatedNumberReader

public NegatedNumberReader(Token negationToken)

Sets the Token that this ValueReader should look for.

Parameters:

negationToken - Token this ValueReader should look for.

Method Details

read

public ExpressionTemplate read(ExpressionTemplateParser parser,
 List<Token> tokens,
 ParseWarnCollector collector)

Takes the first token of the list of Tokens and returns a ExpressionTemplate who's number value is negated, if the retrieved Token is the set negation Token, or null.

Specified by:

read in class ValueReader

Parameters:

parser - ExpressionTemplateParser instance to use. The default ExpressionTemplateParser provides itself here.

tokens - List of tokens to parse into an ExpressionTemplate.

collector - ParseWarnCollector instance to use.

Returns:

Possibly-null ExpressionTemplate with number value negated.