@Override
    public String toString() {
        return "DataRange{" +
                "locationFrom=" + locationFrom +
                ", charOffsetFrom=" + charOffsetFrom +
                ", byteOffsetFrom=" + byteOffsetFrom +
                ", locationTo=" + locationTo +
                ", charOffsetTo=" + charOffsetTo +
                ", byteOffsetTo=" + byteOffsetTo +
                ", length=" + length +
                '}';
    }
@return The number of chars in the range
stroom-util-shared/src/main/java/stroom/util/shared/DataRange.java