Package com.singularsys.jep.configurableparser.matchers

Class OperatorTokenMatcher

java.lang.Object

com.singularsys.jep.configurableparser.matchers.OperatorTokenMatcher

All Implemented Interfaces:

TokenMatcher, Serializable

Direct Known Subclasses:

UpperCaseOperatorTokenMatcher

public class OperatorTokenMatcher
extends Object
implements TokenMatcher

TokenMatcher for matching operators from the operator set.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
OperatorTokenMatcher()	Default constructor.

Method Summary

Modifier and Type	Method	Description
OperatorToken	getToken(String key)	Gets the OperatorToken used for a give key.
void	init(Jep j)	Initializes the map and tokens member from the list of operators in the operator table of the Jep instance.
void	init(OperatorTableI os)	Initializes the map and tokens member from the list of operators in the operator table.
Token	match(String s)	Quickly checks whether the first characters of the string match any of the supplied operator strings.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

OperatorTokenMatcher

public OperatorTokenMatcher()

Default constructor. The operator set is supplied using the init(com.singularsys.jep.Jep) method.

Method Details

init

public void init(Jep j)

Initializes the map and tokens member from the list of operators in the operator table of the Jep instance.

Specified by:

init in interface TokenMatcher

Parameters:

j - Jep instance

init

public void init(OperatorTableI os)

Initializes the map and tokens member from the list of operators in the operator table.

Parameters:

os - the operator table to initialize with. In Jep 3.5 and later there is one OperatorToken for each alternate symbol.

getToken

public OperatorToken getToken(String key)

Gets the OperatorToken used for a give key.

Parameters:

key - symbol of the operator.

Returns:

matching token or null

Since:

Jep 4.1

match

public Token match(String s)

Quickly checks whether the first characters of the string match any of the supplied operator strings.

Specified by:

match in interface TokenMatcher

Parameters:

s - the string to match against

Returns:

if successful returns the corresponding token, return null if failed to match

toString

public String toString()

Overrides:

toString in class Object