在2023年8月正式发布的Unicode 15.1.0版本中,已经更新了5个表意文字描述字符,这样组合汉字描述可以更加准确了.

原来只有12个： ⿰ ⿱⿲⿳ ⿴⿵⿶⿷ ⿸⿹⿺⿻

⿰左右结构⿱上下结构⿲左中右结构⿳上中下结构

⿴全包围结构⿵上包围结构⿶下包围结构⿷左包围结构

⿸左上包围结构⿹右上包围结构⿺左下包围结构⿻嵌套结构

对应的编码从U+2FF0-2FFB

比如相这个字，可以表示成⿰木目。

后面4个原表空缺.

我一直怀疑 ⿵⿶⿷这一组有上下左包围结构,为什么 没有有包围结构?

⿸⿹⿺这一组,有左上,右上,左下,为什么没有右下包围结构?

最新版本终于弥补了这一缺憾,现在用结构字符来描述汉字结构就方便多了,

New blocks are highlighted in yellow in the Character Additions table. Blocks which also have significant glyph updates, as well as the character additions, are starred. The "New Characters" column gives the number of new characters encoded in Unicode, Version 15.1 for previously existing blocks, or the total number of characters for new blocks.

Blocks containing no new characters, but with significant glyph updates, significant metadata updates (for CJK ideographs), or changes to standardized variation sequences are highlighted in blue in the Glyph and Variation Sequence Changes table. That table lists specific characters or ranges of characters with glyph updates in the "Code Points" column. This convention makes it easier to find the relevant glyph changes in very large CJK ideograph code charts.

For more information about these charts, please see Character Code Charts Help and Links. These charts are also commonly referred to as delta charts, because they document the "delta", or changes, between this version of the code charts and the code charts of the prior version.

Character Additions

Block Name

NewCharacters

Ideographic Description Characters

4

CJK Strokes

1

CJK Unified Ideographs Extension I

622

Total

627

在Ideographic Description Characters 增加的4个字符是

Ideographic description characters

These are visibly displayed graphic characters, not invisible composition controls

象形文字描述字符

这些是可见的图形字符，而不是不可见的组成控制字符

IDEOGRAPHIC DESCRIPTION CHARACTER

2FF0 左右结构 IDEOGRAPHIC DESCRIPTION CHARACTER LEFT TO RIGHT

2FF1 上下结构 IDEOGRAPHIC DESCRIPTION CHARACTER ABOVE TO BELOW

2FF2 左中右结构 IDEOGRAPHIC DESCRIPTION CHARACTER LEFT TO MIDDLE AND RIGHT

2FF3 上中下结构IDEOGRAPHIC DESCRIPTION CHARACTER ABOVE TO MIDDLE AND BELOW

2FF4 全包围结构 IDEOGRAPHIC DESCRIPTION CHARACTER FULL SURROUND

2FF5 上包围结构 IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM ABOVE

2FF6 下包围结构 IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM BELOW

2FF7 左包围结构IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LEFT

2FF8 左上包围结构IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM UPPER LEFT

2FF9 右上包围结构IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM UPPER RIGHT

2FFA 左下包围结构 IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LOWER LEFT

2FFB 嵌套结构 IDEOGRAPHIC DESCRIPTION CHARACTER OVERLAID

以下是新增的4个IDC字符

2FFC 右包围结构 IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM RIGHT

2FFD 右下包围结构IDEOGRAPHIC DESCRIPTION CHARACTER SURROUND FROM LOWER RIGHT

2FFE 水平翻转结构 IDEOGRAPHIC DESCRIPTION CHARACTER HORIZONTAL REFLECTION

2FFF 旋转结构 IDEOGRAPHIC DESCRIPTION CHARACTER ROTATION

===

其实在CJK Strokes汉字笔划区还增加了一个IDC字符,

估计是U+2FF0-2FFF区已经放不下了,寄存在CJK Strokes汉字笔划区.U+31EF

根据英文说明,应该是表示删除笔划.

这里我又有三个疑问了:

有U+2FFE 水平翻转结构,为什么没有垂直翻转

有U+2FFF旋转结构,看图示明明是个顺时针旋转结构,为什么没有逆时针旋转结构?

有U+31EF删除笔划,为什么没有增加笔划?

有了以上三者,逻辑才能完备啊.

期待最新的unicode,和字库能及时更新.

参考资料:

https://unicode.org/versions/Unicode15.1.0/

https://www.unicode.org/charts/PDF/