ISO/IEC JTC1/SC2/WG2 N 2667
Date: 2003-10-22

ISO/IEC JTC1/SC2/WG2Coded Character Set
Secretariat: Japan (JISC)

Doc. Type: Project Editor Input to ISO/IEC 10646:2003

Title:CJK Ideograph source references corrections

Source:Project editor (Michel Suignard) and Eric Muller
Project:
JTC1 02.18
Status:
For review by WG2
Date:
2003-10-22
Distribution: WG2
Reference:
Medium:The following text proposes fixes to the CJK Ideographs source references (both unified and compatibility characters) andseeks further clarification for existing references.

1. Clarification
Currently the CJK Unified Ideograph source reference file (CJKU_SR.txt) contains global references for dictionary input:
G_KX, G_HZ, G_CY, G_CH, G_HC, G_BK, G_FZ and G_4K. It would be extremely useful to add such information as page
number, column, etc. for easier referencing, especially for the characters for which there is no other source reference
information (such as U+20001, U+2000A, etc.).

2. Correctionsa) IRG input
Source: http://www.cse.cuhk.edu.hk/~irg/irg/CJK/IRGN975_SingleCJKMappingTable_Notes_E_July11.pdf proposes thefollowing change to CJKU_SR.txt:
Addition:
04443
04695
058F306B76
09376
0FA1F
0FA23

V_SOURCE ”V0-417A”
T_SOURCE “T4-6E3B”
K_SOURCE ”K2-2B3E”
KP_SOURCE ”KP1-61A9”
J_SOURCE “J1-647E”
J_SOURCE “JA-264B”
T_SOURCE “TF-3862” J_SOURCE “JA-2728”

Change04D56 from ”T5-6F54” to ”T4-684F”

Editor comment:
The additions for 06B76, 0FA1F and 0FA23 are already part of ISO/IEC 10646:2003. The other sources are alreadydescribed in the charts pages for these characters. Fixing the source reference file will make the standard consistent.
In addition, many CJK Unified Ideographs located in the CJK Compatibility block are still missing source references. Thisshould be fixed as soon as possible. The characters in question are listed below (all characters are listed in case additionalreferences need to be added to the ones with existing source information):

0FA0E;;;;;;;
0FA0F;;;;;;;
0FA11;;;;;;;
0FA13;;;;;;;
0FA14;;;;;;;
0FA1F;;;JA-264B;;;;
0FA21;;;;;;;
0FA23;;TF-3862;JA-2728;;;;0FA24;;;;;V2-8544;;0FA27;;;;;;;
0FA28;;TF-584C;;;;;
0FA29;;;;;;;b) JPN source
Three entries in the CJK Unified Ideographs source reference file seem to have erroneous J source information:
041B4;;;JPN171;K3-2D78;;;0517B;G0-5178;;JPN200;;;;08980;G8-2F79;;JPN246;;;;

Because JPN is not a recognized format for the J source, they should be either removed or updated.
b) K4 source
Six entries in the CJK Unified Ideographs source reference file seem to have erroneous K source information:
03614;G_HZ;T3-5C35;;K4-0040;;;
03B20;G5-4A32;T3-5473;;K4-0106;;;
05579;G1-7C2E;;;K4-0031;;;
05C21;GE-277C;T3-6525;;K4-0079;;;06725;GE-2D3E;T3-6633;;K4-0181;;;06DA4;G0-3553;;;K4-0098;;;•••

These K4 values have kept their decimal value unlike the K4 values referenced by CJK B code positions. They
should be converted to hexadecimal values.
The corresponding characters have empty K4 column in the merged standard (ISO/IEC10646:2003). This is
obviously not consistent with the source information. Either they should have a representative glyph, or thereferences should be removed from CJKU_SR.txt
Finally because the K4 original index is decimal in value and has been converted in hexadecimal notation for userconvenience, a note should be added to ISO/IEC 10646 clarifying the relationship between the original K4 decimalindex and the hexadecimal notation used in the standard. It may also be mentioned that the hex code is not bases ona row/column notation like the other hex indexes.

d) HKSCS references
The Hong Kong Supplementary Character Set (HKSCS) source reference data is outdated. They should be updated with thelatest known HKSCS standard (2001). The authoritative HKSCS-2001 source is:
http://www.info.gov.hk/digital21/eng/hkscs/download/big5-iso.txt
This would result in the following changes:
Removal:U+8728

HKSCS

957A

Addition to CJKU_SR.txt(too many to list all of them here, about 3270 additions, this will be programmatically extracted by comparing the authoritative
HKSCS 2001 source and the CJKU_SR.txt file)
U+3435
U+3440
U+344C
U+3464HKSCSHKSCSHKSCSHKSCS

9277
96DF
89D593CD

…
U+2A64A HKSCS
U+2A65B HKSCS

9FEC
8AE2

Note concerning transition from ISO/IEC 10646-1:2000 Amd.1 to ISO/IEC 10646:2003
The following changes were made unbeknownst to the editor between these two versions of the standard. These changes are
inline with HKSCS 2001 source.
U+23FF0 HKSCS
U+25D20 HKSCS

from 8E6A to HKSCS FDD8
from FDD8 to HKSCS 8E6A

Addition to CJKC_SR.txt (CJK Compatibility Ideographs)
U+F907
U+2F825
U+2F83B
U+2F878
U+2F8A6
U+2F9BC

HKSCS
HKSCS
HKSCS
HKSCSHKSCS
HKSCS

8BF89874
9AC88BC3
FC77957A

Editor’s comment:
All these modifications should be brought into the next amendment to ISO/IEC 10646:2003.
Finally it should be noted that there are still many HKSCS ideographs still encoded in PUA area. This is not acceptable froma WG2 point of view. These characters should either be part of the CJK unification process or added to the CJK compatibility
area.
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