Utils.java

  /**
	 * Parses an original args array provided to a CommandExecutor to support quotes.
	 * If the parameter array is malformed, then this method returns the parameter array as-is.
	 *
	 * @param args The original args array. Ex: ['A', '"B', 'C', 'D"', 'E']
	 *
	 * @return The resulting args array, if valid. Ex: ['A', 'B C D', 'E']
	 */
	public static String[] parseArgumentsWithQuotes(String[] args) {
		final List<String> resultList = new ArrayList<>();
		boolean building = false;
		StringBuilder builder = new StringBuilder();
		for (String arg : args) {
			if (arg.startsWith("\"")) {
				if (building || arg.length() < 2) {
					return args;
				} else if (!arg.endsWith("\"")) {
					builder.append(arg.substring(1));
				} else if (args.length > 2) {
					builder.append(arg.substring(1, arg.length() - 1));
				} else {
					return args;
				}
			} else if (building) {
				builder.append(' ');
				if (!arg.endsWith("\"")) {
					builder.append(arg);
				} else if (arg.length() < 2) {
					return args;
				} else {
					builder.append(arg.substring(0, arg.length() - 1));
					resultList.add(builder.toString());
					builder = new StringBuilder();
				}
			} else {
				resultList.add(arg);
			}
		}
		return (String[]) resultList.toArray();
	}