Re: GB18030 clarification

You must have a lookup table to do the conversion.

James Su

Derek Leach wrote:

>Hello Everyone,
>I was wondering if anyone could clarify this for
>me.  When converting from GB18030 multi-byte to
>a wide character, what does one do with a  two-byte
>I believe with a one-byte sequence, it is a direct
>assignment, and with a four-byte sequence, it is
>temp_wc = ((byte1 * 10 + byte2) * 126 + byte3) * 10 + byte4;
>So, what does one do with the two-byte sequence?
>Secondly, converting from a wide character back to
>multi-byte, anything <= 0x80 would be easy, and
>converting to a four-byte resultant multi-byte would use:
>result[3]=0x30+temp_wc%10;  temp_wc/=10;
>result[2]=0x81+temp_wc%126; temp_wc/=126;
>result[1]=0x30+temp_wc%10;  temp_wc/=10;
>BUT, how do you determine that the result will be
>a four-byte or a two-byte sequence?  What alogorithm
>does one use to "make" the two-byte sequence?
>Any insight would be _greatly_ appreciated, and if I
>should post this somewhere else, let me know.
>Thank You.
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