package net.sourceforge.phpdt.internal.compiler.parser;

import java.util.ArrayList;

public class UninitializedVariableHandler {

	private class Function {
		private int count;
		private String name;

		public Function(String name, int count) {
			this.name=name;
			this.count=count;
		}
	}

	private String functionName=null;
	private int argumentCount=0;
	private ArrayList functions=new ArrayList();

	public UninitializedVariableHandler() {
		add("ereg",3);
		add("eregi",3);
		add("fsockopen",3);
		add("preg_match",3);
		add("preg_match_all",3);
		add("preg_replace",5);
		add("preg_replace_callback",5);
	}

	private void add(String name, int countFrom) {
		functions.add(new Function(name,countFrom));
	}

	protected boolean reportError() {
		if (functionName!=null) {
			for (int i=0; i<functions.size();i++) {
				Function function=(Function) functions.get(i);
				if (functionName.equalsIgnoreCase(function.name) && argumentCount>=function.count) {
					return false;
				}
			}
		}
		return true;
	}

	public void setFunctionName(String functionName) {
		this.functionName=functionName;
	}

	public void incrementArgumentCount() {
		argumentCount++;
	}
}