am 3666e639: Evaluator.java and CalculatorExpr.java cleanup

                setState(CalculatorState.INPUT);

                mEvaluator.clear();

            }

            mEvaluator.addSaved();

            mEvaluator.appendSaved();

            redisplayAfterFormulaChange();

        } else {

            addChars(item.coerceToText(this).toString(), false);

    /*

     * Return the most significant digit position in the given string or Evaluator.INVALID_MSD.

     * Unlike Evaluator.getMsdPos, we treat a final 1 as significant.

     * Unlike Evaluator.getMsdIndexOf, we treat a final 1 as significant.

     */

    public static int getNaiveMsdIndex(String s) {

    public static int getNaiveMsdIndexOf(String s) {

        int len = s.length();

        for (int i = 0; i < len; ++i) {

            char c = s.charAt(i);

    }

    // Format a result returned by Evaluator.getString() into a single line containing ellipses

    // (if appropriate) and an exponent (if appropriate).  prec is the value that was passed to

    // getString and thus identifies the significance of the rightmost digit.

    // (if appropriate) and an exponent (if appropriate).  precOffset is the value that was passed

    // to getString and thus identifies the significance of the rightmost digit.

    // A value of 1 means the rightmost digits corresponds to tenths.

    // maxDigs is the maximum number of characters in the result.

    // We set lastDisplayedOffset[0] to the offset of the last digit actually appearing in

    // the display.

    // If forcePrecision is true, we make sure that the last displayed digit corresponds to

    // prec, and allow maxDigs to be exceeded in assing the exponent.

    // precOffset, and allow maxDigs to be exceeded in assing the exponent.

    // We add two distinct kinds of exponents:

    // (1) If the final result contains the leading digit we use standard scientific notation.

    // (2) If not, we add an exponent corresponding to an interpretation of the final result as

    public String formatResult(String in, int precOffset, int maxDigs, boolean truncated,

            boolean negative, int lastDisplayedOffset[], boolean forcePrecision) {

        final int minusSpace = negative ? 1 : 0;

        final int msdIndex = truncated ? -1 : getNaiveMsdIndex(in);  // INVALID_MSD is OK.

        final int msdIndex = truncated ? -1 : getNaiveMsdIndexOf(in);  // INVALID_MSD is OK.

        final int decIndex = in.indexOf('.');

        String result = in;

        lastDisplayedOffset[0] = precOffset;