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Liferay Source Formatter
There is a newer version: 1.0.1437
/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.source.formatter;

import com.liferay.portal.kernel.util.StringBundler;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.StringUtil;

import java.io.File;

import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @author Hugo Huijser
 */
public class JSSourceProcessor extends BaseSourceProcessor {

	@Override
	public String[] getIncludes() {
		return _INCLUDES;
	}

	@Override
	protected String doFormat(
			File file, String fileName, String absolutePath, String content)
		throws Exception {

		String newContent = trimContent(content, false);

		newContent = StringUtil.replace(
			newContent,
			new String[] {
				StringPool.TAB + "else{", StringPool.TAB + "for(",
				StringPool.TAB + "if(", StringPool.TAB + "while(",
				" function (", "){\n", "= new Array();", "= new Object();"
			},
			new String[] {
				StringPool.TAB + "else {", StringPool.TAB + "for (",
				StringPool.TAB + "if (", StringPool.TAB + "while (",
				" function(", ") {\n", "= [];", "= {};"
			});

		while (true) {
			Matcher matcher = _multipleVarsOnSingleLinePattern.matcher(
				newContent);

			if (!matcher.find()) {
				break;
			}

			String match = matcher.group();

			int pos = match.indexOf("var ");

			StringBundler sb = new StringBundler(4);

			sb.append(match.substring(0, match.length() - 2));
			sb.append(StringPool.SEMICOLON);
			sb.append("\n");
			sb.append(match.substring(0, pos + 4));

			newContent = StringUtil.replace(newContent, match, sb.toString());
		}

		if (newContent.endsWith("\n")) {
			newContent = newContent.substring(0, newContent.length() - 1);
		}

		checkLanguageKeys(
			fileName, absolutePath, newContent, languageKeyPattern);

		if (newContent.contains("debugger.")) {
			processMessage(fileName, "debugger");
		}

		return newContent;
	}

	@Override
	protected List doGetFileNames() throws Exception {
		String[] excludes = {
			"**/*.min.js", "**/*.nocsf.js", "**/*.soy.js", "**/aui/**",
			"**/jquery/**", "**/lodash/**", "**/misc/**", "**/r2.js",
			"**/tools/**"
		};

		return getFileNames(excludes, getIncludes());
	}

	private static final String[] _INCLUDES = {"**/*.js"};

	private final Pattern _multipleVarsOnSingleLinePattern = Pattern.compile(
		"\t+var \\w+\\, ");

}