Review

class BidiOrder {
    /**
     * Return reordering array breaking lines at offsets in linebreaks.
     * <p>
     * The reordering array maps from a visual index to a logical index.
     * Lines are concatenated from left to right.  So for example, the
     * fifth character from the left on the third line is
     * <pre> getReordering(linebreaks)[linebreaks[1] + 4]</pre>
     * (linebreaks[1] is the position after the last character of the
     * second line, which is also the index of the first character on the
     * third line, and adding four gets the fifth character from the left).
     * <p>
     * The linebreaks array must include at least one value.
     * The values must be in strictly increasing order (no duplicates)
     * between 1 and the length of the text, inclusive.  The last value
     * must be the length of the text.
     *
     * @param linebreaks the offsets at which to break the paragraph.
     */
    public int[] getReordering(int[] linebreaks) {
        validateLineBreaks(linebreaks, textLength);
        
        byte[] levels = getLevels(linebreaks);
        
        return computeMultilineReordering(levels, linebreaks);
    }

}