Re: What to backup after corruption of code units?

On 28/08/13 23:29, Xue Fuqiao wrote:
> I see. Thanks for all your replies!
>
> BTW I have a further question:
>
> On Wed, Aug 28, 2013 at 1:44 PM, Philippe Verdy<verdy_p_at_wanadoo.fr> wrote:
>> - in UTF-8, you'll need to look backward between 1 to 3 positions before
>> your start position to find the leading 8-bit code unit (>= 0xC0).
> Why should this be >=0xC0?
>

Because a well‐formed UTF-8 header byte must start with at least two 1
bits, numerically, the smallest such byte is 16#C0#.

-- 
Ian ◎