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
