Wg2 N5069r & L2/19-212R

ISO/IEC JTC1/SC2/WG2 N5069R L2/19-212R Universal Multiple-Octet Coded Character Set International Organization for Standardization

Doc Type: Working Group Document Title: Proposal to change the font for the CJK Radicals Supplement & Kangxi Radicals blocks Source: Ken Lunde, Adobe Inc. Date: 2019-06-20 (revised)

This proposal raises issues in two CJK-related blocks, and proposes a solution that involves using a new font for their representative glyphs. As a result, the CJK Radicals Supplement and Kangxi Radicals blocks will become more correct/consistent and region-agnostic, respectively. Code Chart Issues There have been recent reports of issues affecting the representative glyphs in theCJK Radi- cals Supplement and Kangxi Radicals blocks, such as L2/19-175 that points out an issue with the representative glyph for U+2F2A KANGXI RADICAL LAME—it should look like ⼪. Jaemin Chung also pointed out on the Unihan⼪ mailing list that the representative glyphs for U+2E93 CJK RADICAL THREAD and U+2F33 KANGXI RADICAL SHORT THREAD are identical—the representative⺓ glyph for the latter should⼳ look like ⼳. According to the original proposal, L2/98-332 (aka SC2 N3213), there are several errors or in- consistencies in the current code charts for these blocks, beyond what was indicated in the paragraph above: • The representative glyphs in the entire Kangxi Radicals block follow modern Chinese conventions, specifically those for China (PRC). The representative glyph for U+2FAE KANGXI RADICAL WRONG—ironic character name, by the way—is perhaps the most illustrative⾮ example, because no other Chinese-speaking region—perhaps other than Singapore—uses this particular form. A more region-agnostic form for this radical is ⾮. So as to be region- agnostic for the entire block, which should be the intent, the representative glyphs should more closely follow the style found in the Kangxi Dictionary. This issue affects a non-trivial number of radicals in this block. • The representative glyphs for some of the radicals in the Kangxi Radicals block are too small or too narrow, such as those for U+2F1B ⼛ KANGXI RADICAL PRIVATE, U+2F21 ⼡ KANGXI RADICAL GO, and U+2F23 ⼣ KANGXI RADICAL EVENING (shown in this sentence using im- proved glyphs that do a better job at filling the em-box). • The representative glyphs for two of the four Japanese-specific simplified radicals in the CJK Radicals Supplement block, U+2EEB CJK RADICAL J-SIMPLIFIED EVEN and U+2EEF CJK RADICAL J-SIMPLIFIED DRAGON, do⻫ not follow Japan’s regional conventions. They should⻯ display as ⻫ and ⻯ so as to follow Japan’s regional conventions (the issue is with the shape of very first stroke of both radicals). 1 Proposal The proposal is to completely replace all of the representative glyphs for the CJK Radicals Sup- plement and Kangxi Radicals blocks with those provided in the dedicated—and open source— CJK Radicals TrueType font (the font is provided as a PDF attachment that is visible in the At- tachments panel when opening this document in Adobe Acrobat). The font was derived from the open source Source Han Serif typeface family, specifically the Regular weight, and other than the required “.notdef” and recommended “space” (U+0020) glyphs at GIDs 0 and 1, respectively, only the 329 glyphs necessary for supporting these two blocks are included. The table that follows illustrates the glyphs for both blocks in their en- tirety, shown using the actual CJK Radicals font:

0 1 2 3 4 5 6 7 8 9 A B C D E F

U+2E8 ⺀⺁⺂⺃⺄⺅⺆⺇⺈⺉⺊⺋⺌⺍⺎⺏

U+2E9 ⺐⺑⺒⺓⺔⺕⺖⺗⺘⺙⺛⺜⺝⺞⺟

U+2EA ⺠⺡⺢⺣⺤⺥⺦⺧⺨⺩⺪⺫⺬⺭⺮⺯

U+2EB ⺰⺱⺲⺳⺴⺵⺶⺷⺸⺹⺺⺻⺼⺽⺾⺿

U+2EC ⻀⻁⻂⻃⻄⻅⻆⻇⻈⻉⻊⻋⻌⻍⻎⻏

U+2ED ⻐⻑⻒⻓⻔⻕⻖⻗⻘⻙⻚⻛⻜⻝⻞⻟

U+2EE ⻠⻡⻢⻣⻤⻥⻦⻧⻨⻩⻪⻫⻬⻭⻮⻯

U+2EF ⻰⻱⻲⻳

U+2F0 ⼀⼁⼂⼃⼄⼅⼆⼇⼈⼉⼊⼋⼌⼍⼎⼏

U+2F1 ⼐⼑⼒⼓⼔⼕⼖⼗⼘⼙⼚⼛⼜⼝⼞⼟

U+2F2 ⼠⼡⼢⼣⼤⼥⼦⼧⼨⼩⼪⼫⼬⼭⼮⼯

U+2F3 ⼰⼱⼲⼳⼴⼵⼶⼷⼸⼹⼺⼻⼼⼽⼾⼿

U+2F4 ⽀⽁⽂⽃⽄⽅⽆⽇⽈⽉⽊⽋⽌⽍⽎⽏

U+2F5 ⽐⽑⽒⽓⽔⽕⽖⽗⽘⽙⽚⽛⽜⽝⽞⽟

U+2F6 ⽠⽡⽢⽣⽤⽥⽦⽧⽨⽩⽪⽫⽬⽭⽮⽯

2 0 1 2 3 4 5 6 7 8 9 A B C D E F

U+2F7 ⽰⽱⽲⽳⽴⽵⽶⽷⽸⽹⽺⽻⽼⽽⽾⽿

U+2F8 ⾀⾁⾂⾃⾄⾅⾆⾇⾈⾉⾊⾋⾌⾍⾎⾏

U+2F9 ⾐⾑⾒⾓⾔⾕⾖⾗⾘⾙⾚⾛⾜⾝⾞⾟

U+2FA ⾠⾡⾢⾣⾤⾥⾦⾧⾨⾩⾪⾫⾬⾭⾮⾯

U+2FB ⾰⾱⾲⾳⾴⾵⾶⾷⾸⾹⾺⾻⾼⾽⾾⾿

U+2FC ⿀⿁⿂⿃⿄⿅⿆⿇⿈⿉⿊⿋⿌⿍⿎⿏

U+2FD ⿐⿑⿒⿓⿔⿕

NOTE: The representative glyphs for U+2F53 ⽓ KANGXI RADICAL STEAM, U+2F5B ⽛ KANGXI RADICAL FANG and U+2F61 ⽡ KANGXI RADICAL TILE do not completely match the shapes that are found in the Kangxi Dictionary. This divergence was intentional due to the oddball nature of the shapes found in the Kangxi Dictionary that match no regional convention. The same is somewhat true for the representative glyphs for U+2F66 ⽦ KANGXI RADICAL BOLT OF CLOTH, U+2F7F ⽿ KANGXI RADICAL EAR, U+2F8A ⾊ KANGXI RADICAL COLOR, and U+2FAE ⾮ KANGXI RADICAL WRONG, but the divergence that resulted in these very subtle differences is due to the use of more common shapes that still respect the spirit of the Kangxi Dictionary shapes. Also, other than the four radicals in the CJK Radicals Supplement block that include J-SIMPLIFIED in their names, and for which their representative glyphs match Japan’s regional conventions, the rest follow PRC conventions for consistency. Stroke Count Concerns I am fully aware of concerns that the representative glyphs of the Kangxi Radicals block would not necessarily match the corresponding number of strokes to which they are assigned in the Kangxi Dictionary. Such a concern is invalid in this context, which is to more closely adhere to the “printed” style of that dictionary, as opposed to modern “written” style. A good example of this difference is U+2FCD ⿍ KANGXI RADICAL TRIPOD whose representative glyph matches the shape that is found in the Kangxi Dictionary, though non–Chinese-speaking regions draw the lower-right portion as two separate strokes, which can be seen as the CJK Unified Ideo- graph U+9F0E . 鼎 Code Chart & Kangxi Dictionary Excerpts The pages that follow are reference materials. Pp 4 and 5 provide the current (Version 12.1) code charts for the CJK Radicals Supplement and Kangxi Radicals blocks for easy reference, and pp 6 through 14 provide the pages from the Kangxi Dictionary that show the 214 radicals.

That is all. 3 2E80 CJK Radicals Supplement 2EFF

2E8 2E9 2EA 2EB 2EC 2ED 2EE 2EF

0 ⺀⺐⺠⺰⻀⻐⻠⻰ 2E80 2E90 2EA0 2EB0 2EC0 2ED0 2EE0 2EF0

1 ⺁⺑⺡⺱⻁⻑⻡⻱ 2E81 2E91 2EA1 2EB1 2EC1 2ED1 2EE1 2EF1

2 ⺂⺒⺢⺲⻂⻒⻢⻲ 2E82 2E92 2EA2 2EB2 2EC2 2ED2 2EE2 2EF2

3 ⺃⺓⺣⺳⻃⻓⻣⻳ 2E83 2E93 2EA3 2EB3 2EC3 2ED3 2EE3 2EF3

4 ⺄⺔⺤⺴⻄⻔⻤ 2E84 2E94 2EA4 2EB4 2EC4 2ED4 2EE4

5 ⺅⺕⺥⺵⻅⻕⻥ 2E85 2E95 2EA5 2EB5 2EC5 2ED5 2EE5

6 ⺆⺖⺦⺶⻆⻖⻦ 2E86 2E96 2EA6 2EB6 2EC6 2ED6 2EE6

7 ⺇⺗⺧⺷⻇⻗⻧ 2E87 2E97 2EA7 2EB7 2EC7 2ED7 2EE7

8 ⺈⺘⺨⺸⻈⻘⻨ 2E88 2E98 2EA8 2EB8 2EC8 2ED8 2EE8

9 ⺉⺙⺩⺹⻉⻙⻩ 2E89 2E99 2EA9 2EB9 2EC9 2ED9 2EE9

A ⺊⺪⺺⻊⻚⻪ 2E8A 2EAA 2EBA 2ECA 2EDA 2EEA

B ⺋⺛⺫⺻⻋⻛⻫ 2E8B 2E9B 2EAB 2EBB 2ECB 2EDB 2EEB

C ⺌⺜⺬⺼⻌⻜⻬ 2E8C 2E9C 2EAC 2EBC 2ECC 2EDC 2EEC

D ⺍⺝⺭⺽⻍⻝⻭ 2E8D 2E9D 2EAD 2EBD 2ECD 2EDD 2EED

E ⺎⺞⺮⺾⻎⻞⻮ 2E8E 2E9E 2EAE 2EBE 2ECE 2EDE 2EEE

F ⺏⺟⺯⺿⻏⻟⻯ 2E8F 2E9F 2EAF 2EBF 2ECF 2EDF 2EEF

2F0 2F1 2F2 2F3 2F4 2F5 2F6 2F7 2F8 2F9 2FA 2FB 2FC 2FD

0 ⼀⼐⼠⼰⽀⽐⽠⽰⾀⾐⾠⾰⿀⿐ 2F00 2F10 2F20 2F30 2F40 2F50 2F60 2F70 2F80 2F90 2FA0 2FB0 2FC0 2FD0

1 ⼁⼑⼡⼱⽁⽑⽡⽱⾁⾑⾡⾱⿁⿑ 2F01 2F11 2F21 2F31 2F41 2F51 2F61 2F71 2F81 2F91 2FA1 2FB1 2FC1 2FD1

2 ⼂⼒⼢⼲⽂⽒⽢⽲⾂⾒⾢⾲⿂⿒ 2F02 2F12 2F22 2F32 2F42 2F52 2F62 2F72 2F82 2F92 2FA2 2FB2 2FC2 2FD2

3 ⼃⼓⼣⼳⽃⽓⽣⽳⾃⾓⾣⾳⿃⿓ 2F03 2F13 2F23 2F33 2F43 2F53 2F63 2F73 2F83 2F93 2FA3 2FB3 2FC3 2FD3

4 ⼄⼔⼤⼴⽄⽔⽤⽴⾄⾔⾤⾴⿄⿔ 2F04 2F14 2F24 2F34 2F44 2F54 2F64 2F74 2F84 2F94 2FA4 2FB4 2FC4 2FD4

5 ⼅⼕⼥⼵⽅⽕⽥⽵⾅⾕⾥⾵⿅⿕ 2F05 2F15 2F25 2F35 2F45 2F55 2F65 2F75 2F85 2F95 2FA5 2FB5 2FC5 2FD5

6 ⼆⼖⼦⼶⽆⽖⽦⽶⾆⾖⾦⾶⿆ 2F06 2F16 2F26 2F36 2F46 2F56 2F66 2F76 2F86 2F96 2FA6 2FB6 2FC6

7 ⼇⼗⼧⼷⽇⽗⽧⽷⾇⾗⾧⾷⿇ 2F07 2F17 2F27 2F37 2F47 2F57 2F67 2F77 2F87 2F97 2FA7 2FB7 2FC7

8 ⼈⼘⼨⼸⽈⽘⽨⽸⾈⾘⾨⾸⿈ 2F08 2F18 2F28 2F38 2F48 2F58 2F68 2F78 2F88 2F98 2FA8 2FB8 2FC8

9 ⼉⼙⼩⼹⽉⽙⽩⽹⾉⾙⾩⾹⿉ 2F09 2F19 2F29 2F39 2F49 2F59 2F69 2F79 2F89 2F99 2FA9 2FB9 2FC9

A ⼊⼚⼪⼺⽊⽚⽪⽺⾊⾚⾪⾺⿊ 2F0A 2F1A 2F2A 2F3A 2F4A 2F5A 2F6A 2F7A 2F8A 2F9A 2FAA 2FBA 2FCA

B ⼋⼛⼫⼻⽋⽛⽫⽻⾋⾛⾫⾻⿋ 2F0B 2F1B 2F2B 2F3B 2F4B 2F5B 2F6B 2F7B 2F8B 2F9B 2FAB 2FBB 2FCB

C ⼌⼜⼬⼼⽌⽜⽬⽼⾌⾜⾬⾼⿌ 2F0C 2F1C 2F2C 2F3C 2F4C 2F5C 2F6C 2F7C 2F8C 2F9C 2FAC 2FBC 2FCC

D ⼍⼝⼭⼽⽍⽝⽭⽽⾍⾝⾭⾽⿍ 2F0D 2F1D 2F2D 2F3D 2F4D 2F5D 2F6D 2F7D 2F8D 2F9D 2FAD 2FBD 2FCD

E ⼎⼞⼮⼾⽎⽞⽮⽾⾎⾞⾮⾾⿎ 2F0E 2F1E 2F2E 2F3E 2F4E 2F5E 2F6E 2F7E 2F8E 2F9E 2FAE 2FBE 2FCE

F ⼏⼟⼯⼿⽏⽟⽯⽿⾏⾟⾯⾿⿏ 2F0F 2F1F 2F2F 2F3F 2F4F 2F5F 2F6F 2F7F 2F8F 2F9F 2FAF 2FBF 2FCF