Frank,
> You don't need to explain to me
> the concept of GB18030. The question I have is about details mapping
> information.
Now, now, there's no need to get snippy with me. It sounded
like you were unclear from the kinds of questions you were
asking.
> I look at
> http://oss.software.ibm.com/cvs/icu/charset/data/xml/gb-18030-2000.xml .
>
> It is interesting that the mapping between U+10000 and U+10FFFF is check
> in only 5 weeks ago in the version 1.3
>
> | 30910: <range uFirst="10000" uLast="10FFFF"
> bFirst="90 30 81 30" bLast="E3 32 9A 35" bMin="81 30 81 30" bMax="FE 39
> FE 39"/>
>
> Is the U+10000 - U+10FFFF mapping between Unicode and GB18030 specified
> in the GB18030 standard itself? can someone fax me that page ? Thanks.
Unfortunately, I don't have the revised and corrected version of
the standard to hand.
But on p. 5, clause 7.3 of the original GB 18030-2000, it states (in
Chinese):
"From 0x90308130 to 0xE339FE39, altogether 1058400 code points, correspond
to GB 13000's 16 supplementary planes..."
If you look at the ICU specification, bFirst="90 30 81 30" and
bLast="E3 32 9A 35" corresponds to:
83 "groups" (90..E2) of GB 18030: 83 x 10 x 1260 = 1045800 code points
2 "planes" (E3 30..31) of GB 18030: 2 x 1260 = 2520 code points
25 "rows" (E3 32 81..99) of GB 18030: 25 x 10 = 250 code points
6 "cells" (E3 32 9A 30..35) of GB 18030: 6 code points
Total 1048576 code points
And 1048576 code points = 16 x 66536 code points = 16 planes of 10646.
So GB 18030 and ICU agree. Start at 0x90308130 and lay out all the
rest of the Unicode supplementary code points in order.
--Ken
This archive was generated by hypermail 2.1.2 : Thu Sep 27 2001 - 14:54:56 EDT