Package com.singularsys.jep.misc

Class CaseInsensitiveFunctionTable

java.lang.Object

com.singularsys.jep.FunctionTable

com.singularsys.jep.misc.CaseInsensitiveFunctionTable

All Implemented Interfaces:

JepComponent, Serializable

public class CaseInsensitiveFunctionTable
extends FunctionTable

A version of a function table which is case-insensitive.

Note that this table does not include any functions by default. You will need to add any functions you need.

 jep = new Jep();
 jep.setComponent(new CaseInsensitiveFunctionTable());
 jep.addFunction("if",new If());
 jep.parse("if(1>0,2,3)");
 System.out.println(jep.evaluate());
 

If you want to include all the functions in an existing table you can use

 FunctionTable oldFT = jep.getFunctionTable();
 jep.setComponent(new CaseInsensitiveFunctionTable());
 for(Entry<String, PostfixMathCommandI> ent:oldFT.entrySet()) {
     jep.addFunction(ent.getKey(), ent.getValue());
 }
 

See Also:

• Serialized Form

Field Summary

Fields inherited from class com.singularsys.jep.FunctionTable

table

Constructor Summary

Constructors

Modifier	Constructor	Description
	CaseInsensitiveFunctionTable()
protected	CaseInsensitiveFunctionTable(Map<String,PostfixMathCommandI> tbl)

Method Summary

Modifier and Type	Method	Description
PostfixMathCommandI	addFunction(String name, PostfixMathCommandI pfmc)
boolean	containsKey(String key)
PostfixMathCommandI	getFunction(String name)
FunctionTable	shallowCopy()	Returns a new shallow copy of this function table.

Methods inherited from class com.singularsys.jep.FunctionTable

clear, containsValue, entrySet, getLightWeightInstance, init, isEmpty, keySet, remove, size, threadSafeMapCopy, toString, values

Methods inherited from class java.lang.Object

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

Constructor Details

CaseInsensitiveFunctionTable

public CaseInsensitiveFunctionTable()

CaseInsensitiveFunctionTable

protected CaseInsensitiveFunctionTable(Map<String,PostfixMathCommandI> tbl)

Method Details

getFunction

public PostfixMathCommandI getFunction(String name)

Overrides:

getFunction in class FunctionTable

addFunction

public PostfixMathCommandI addFunction(String name,
 PostfixMathCommandI pfmc)

Overrides:

addFunction in class FunctionTable

containsKey

public boolean containsKey(String key)

Overrides:

containsKey in class FunctionTable

shallowCopy

public FunctionTable shallowCopy()

Description copied from class: FunctionTable

Returns a new shallow copy of this function table. Calls the FunctionTable.threadSafeMapCopy() method to ensure the table is safe to use a separate thread. All subclasses should override this method to create a function table of the matching type. A typical implementation would be

          @Override
          public FunctionTable shallowCopy() {
              Map<String,PostfixMathCommandI> newMap = this.threadSafeMapCopy();
        return new myFunctionTable(newMap);
          }
 

using the FunctionTable.threadSafeMapCopy() method to return a copy of the map of operators and a constructor taking this map which uses the FunctionTable(Map) constructor.

Overrides:

shallowCopy in class FunctionTable

Returns:

a new shallow copy of this function table