*/
    void debug(CharSequence content);

    /**
     * Sends a message (and accompanying exception) to the user in the <b>debug</b> error level.
     * The error's stacktrace will be output when this error level is enabled.
     *
     * @param content the message to log
     * @param error the error that caused this log
     */
    void debug(CharSequence content, Throwable error);

    /**

     */
    public StringSource(CharSequence content) {
        this(content, null);
    }

    /**
     * Creates a new source backed by the specified string.
     *
     * @param content The String representation, may be empty or {@code null}.
     * @param location The location to report for this use, may be {@code null}.
     */
    public StringSource(CharSequence content, String location) {

    //
    // message building methods modelled after Ansi methods
    //

    @Nonnull
    @Override
    MessageBuilder append(CharSequence cs);

    @Nonnull
    @Override
    MessageBuilder append(CharSequence cs, int start, int end);

    @Nonnull
    @Override
    MessageBuilder append(char c);

    /**
     * Append content to the message buffer.
     *