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package net.sf.xmlform.expression;

import java.util.ArrayList;
import java.util.List;

/**
 * @author Liu Zhikun
 */

public class Function implements Factor {
	private String name;
	private List arguments=new ArrayList();
	private Factor factors[]=null;
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name.toLowerCase();
	}
	public List getArguments() {
		return arguments;
	}
	public void setArguments(List arguments) {
		this.arguments = arguments;
	}
	public Value eval(ExpressionContext context) {
		Factor args[]=factors;
		if(args==null){
			args=(Factor[])arguments.toArray(new Factor[arguments.size()]);
			factors=args;
		}
		return context.executeFunction(name, args);
	}
	public String toString() {
		StringBuffer sb=new StringBuffer();
		sb.append(name).append("(");
		for(int i=0;i