Several major intervals in Unicode

Basic plane

 

Plane 0 (0000-ffff): Basic multi-text plane (Basic multilingual plane, BMP ).

Meaning of the encoding range of the Unicode basic plane area

 

 

First secondary plane

 

Supplementary multilingual plane (SMP or plane 1) is used to display characters such as pinyin (mainly text that is no longer used) and notes. The value range is u + 10000 ~ U + 1 fffd. The scheduler is allocated as follows.

Chinese name of the encoding range
English name

10000-100ff linear Text B
Linear B

10100-101cf ancient data recording system
Specified ent numeric Systems

Phoneme and syllable text and Symbol Set written from left to right by 101d0-0000ff
Alphabetic and syllabic LTR scripts and sets of symbols

Phoneme and syllable text written from right to left by 10800-10fff
Alphabetic and syllabic RTL scripts

11000-11fff roami text
Brahmic scripts

12000-12fff wedge text and other ancient text
Cuneiform and other parent ent scripts

13000-15bff Egyptian and Maya holy book
Egyptian and Maya hieroglyphs

15c00-15fff aztke hieroglyphics
Aztec pictograms

16000-16fff new text
Recently-devised scripts

17000-1b5ff Asian text
Large Asian scripts

1b600-1bfff not allocated
Unassigned

1c000-1cdff
Micmac hieroglyphs

1ce00-1cfff original Alan text
Proto-elamite

1d000-1dfff mark system
Notational Systems

1e000-1e7ff not allocated
Unassigned

1e800-1efff text written from right to left
RTL scripts

1f000-1f0ff game symbol
Game symbols

1f100-1f2ff alphanumeric and ideographic character set
Alphanumeric and Ideographic Sets

1f300-1f7ff pictogram Character Set
Pictographic Sets

1f800-1fffd not allocated
Unassigned

 

 

Secondary plane

 

The second secondary plane is also called the supplementary plane of ideographic texts (supplementary ideographic plane, short for SIP, or plane 2). the whole plane is in U + 20000 ~ U + 2 fffd. The whole plane is configured with Chinese characters that are rarely used or regional dialects, such as Cantonese and Vietnamese. Currently, "Expansion of unified Chinese ideographic texts of China, Japan, and Korea (40 thousand million Chinese characters) and" Expansion of unified Chinese ideographic texts of China, Japan, and Korea (Area C) "(3253 Chinese characters) are deployed) and CJK compatibility ideographs supplement ). This plane is also expected to be used in "Area D of unified Chinese-Japanese-German ideographic text extensions" and "Area E of unified Chinese-Japanese-German ideographic text extensions.

The allocated and planned CIDR blocks are:

U + 20000-u + 2a6df

U + 2a700-u + 2b73f: expansion of C-zone

U + 2b740-u + 2b81f: Unified ideographic text Extension Area D

It is still in the drafting phase.

U + 2b820-u + 2 ???? : Expansion of uniform ideographic text in China, Japan, and South Korea (ezone)

It is still in the drafting phase.

U + 2f800-u + 2fa1f: compatible with Chinese and Japanese ideographic texts

 

Third to thirteen secondary planes

 

The third secondary plane has not yet been used, but it is intended to be used to place Oracle, Jin Wen, Xiao Yu, and Chinese characters in the Warring States period. The planned CIDR block is:

U + 30000-u + 317ff: Oracle

U + 32000-u + 32fff: Jin Wen

U + 34000-u + 0000ff: Small shard

 

The secondary plane is not planned for use from 4th to 13th..

 

14th secondary plane

 

The lementary special-purpose plane is also called the Special Purpose supplemental plane (SSP). The "language encoding label" and "font transform selector" are both control characters. The range is u + e0000 ~ U + e01ff.

For the encoding table, see E0000-E0FFF.

 

15th to sixteen secondary planes

 

The secondary flat from 15th to 16 are private zones. Their range is u + f0000 ~ U + ffffd and U + 100000 ~ U + 10fffd.

 

 

Reprinted from: http://www.iteye.com/topic/977549