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package org.nico.format.impl;

import org.nico.format.GrammarFormat;
import org.nico.format.symbol.SymbolSets;
import org.nico.noson.util.string.StringUtils;

public class JavaScriptFormat extends SymbolSets implements GrammarFormat{

	@Override
	public String format(String grammar) {
		StringBuilder javascript = new StringBuilder();
		if(StringUtils.isBlank(grammar)) return null;
		grammar = grammar.replaceAll(" |\t", "");
		char[] chars = grammar.toCharArray();
		int count = 0;
		for(int index = 0; index < chars.length; index ++ ){
			char target = chars[index];
			if(target == bracket){
				++count;
				javascript.append(bracket + "\r\n" + nTableFeed(count));
			}else if(target == parentheses){
				--count;
				javascript.append("\r\n" + nTableFeed(count) + parentheses + "\r\n");
			}else if(target == semicolon){
				javascript.append("\r\n" + nTableFeed(count));
			}else{
				javascript.append(target);
			}
		}
		return javascript.toString();
	}
	
	
}