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GB 18030-2022 PDF English

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GB 18030-2022: Information technology - Chinese coded character set
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GB 18030: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] deliveryName of Chinese StandardStatus
GB 18030-2022English5005 Add to Cart 0-9 seconds. Auto-delivery Information technology - Chinese coded character set Valid
GB 18030-2005English4690 Add to Cart 0-9 seconds. Auto-delivery Information technology -- Chinese coded character set Obsolete
GB 18030-2000EnglishRFQ ASK 3 days Information technology-Chinese ideograms coded character set for information interchange-Extension for the basic set Obsolete

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GB/T 37036.2   GB/T 37036.1   GB/T 17710   GB/T 22320   

GB 18030-2022: Information technology - Chinese coded character set

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PEOPLE’S REPUBLIC OF CHINA ICS 35.040 CCS L 71 Replacing GB 18030-2005 Information technology - Chinese coded character set Issued on: JULY 19, 2022 Implemented on: AUGUST 01, 2023 Issued by. State Administration for Market Regulation; Standardization Administration of the People's Republic of China.

Table of Contents

Foreword... i 1 Scope... 0 2 Normative references... 0 3 Terms and definitions... 0 4 Repertoire... 1 5 Overall structure... 2 6 Sequence of characters... 4 7 Code point allocation... 4 8 Explanation of some characters and codes... 7 9 Implementation level... 7 Annex A (normative) Character table of double-byte... 9 Annex B (normative) Ideographic descriptors... 91 Annex C (normative) Character table of four-byte... 92 Annex D (informative) Explanation of some characters and codes... 546 Annex E (informative) Code positions of Chinese characters in "General Standard Chinese Character List"... 549 Bibliography... 742

1 Scope

This document specifies the hexadecimal representation of Chinese graphic characters and their binary codes used in information technology. This document applies to the processing, exchange, storage, transmission, presentation, input and output of Chinese and other graphic character information. This document is applicable to technical products with information processing and exchange functions of Chinese and other text and graphic characters, including but not limited to the software products represented by input methods, optical character recognition (OCR), editing and proofreading, machine translation, speech synthesis, text transcription, intelligent writing, etc., as well as the hardware products represented by computers, communication terminal equipment, e-book readers, learning machines, etc.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 2312-1980, Code of Chinese graphic character set for information interchange - Primary set GB/T 11383-1989, Information process in 8-bit code for information interchange - Structure and rules for implementation GB/T 13000, Information technology - Universal multiple - Octet coded character set (UCS)

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply. 3.1 character An element in a collection of elements used to organize, control, or represent data. 3.2 coded character Character (3.1) and its coded representation. 3.3 private use area An area that can be specified by the user of a product conforming to this document. 3.4 repertoire A specified set of characters (3.1) represented by a coded character (3.2) set. 3.5 reserved zone Areas reserved for future specified by this document.

4 Repertoire

4.1 Overview The characters included in this document are coded in single-byte, double-byte or four- byte. 4.2 Part of single-byte In this document, the part of single-byte includes all 128 characters from 0x00 to 0x7F of GB/T 11383-1989. 4.3 Part of double-byte The part of double-byte includes all graphic characters in GB/T 2312-1980, CJK unified Chinese characters and some graphic characters in GB/T 13000.The characters in the part of double-byte are in accordance with the provisions in Annex A. Among them, the graphics, code positions and functions of ideographic descriptors shall comply with the provisions of Annex B. NOTE. GB/T 13000 uniformly encodes Chinese characters used in China, Japan, South Korea, Vietnam and other countries and regions. Chinese characters with unique abstract glyphs are assigned a separate code position. Chinese characters with different sources but the same abstract glyphs are given a common code position. The encoded Chinese characters are called CJK unified Chinese characters (CJK Unified Ideographs), where CJK means China, Japan, and Korea. 4.4 Part of four-byte The part of four-byte includes 66 CJK unified Chinese characters (9FA6~9FEF, excluding 9FB4~9FBB) in GB/T 13000 other than the above-mentioned double-byte characters, CJK unified Chinese character extension A, CJK unified Chinese character extension B, CJK unified Chinese character extension C, CJK unified Chinese character extension D, CJK unified Chinese character extension E, CJK unified Chinese character extension F and the characters of ethnic minorities that have been coded in GB/T 13000. The characters in the part of four-byte follow the provisions of Annex C.

5 Overall structure

In the text, all numbers marked with 0x are in hexadecimal. Those not marked with 0x are in decimal. All coded representations in the appendix are expressed in hexadecimal. All other numbers are expressed in decimal. The part of single-byte adopts the encoding structure of GB/T 11383-1989.Use code points 0x00~0x7F.

6 Sequence of characters

6.1 Sequence of characters in part of single-byte All characters in the part of single-byte are arranged in the order of the corresponding characters in GB/T 11383-1989. 6.2 Sequence of characters in part of double-byte See Annex A for the sequence of characters in the part of double-byte. 6.3 Sequence of characters in part of four-byte There is a total of 50400 code points from 0x81308130 to 0x8439FE39.The characters corresponding to all basic multilingual plane of GB/T 13000 not included in the part of double-byte shall be arranged in the order of the corresponding characters of basic multilingual plane in GB/T 13000. A total of 1058400 code points from 0x90308130 to 0xE339FE39 are used for the 16 auxiliary planes corresponding to GB/T 13000.The sequence of character arrangement is completely in accordance with the corresponding code point sequence of the 16 auxiliary planes of GB/T 13000. The sequence of characters in the part of four-byte shall comply with Annex C.

7 Code point allocation

7.1 Code point allocation for part of single-byte The code points of the part of single-byte are allocated according to the rules of GB/T 11383-1989.See Figure 2 for the allocation of single-byte code points. Figure 2 -- Code point map for zone of single byte 7.2 Code point allocation for part of double-byte The code point arrangement of the part of double-byte is divided into two parts. 0x8140~0xFE7E and 0x8180~0xFEFE, a total of 23940 code points. See Figure 3 and Table 2 for the allocation of double-byte code points.

8 Explanation of some characters and codes

Compared with GB 18030-2005, the glyphs at some code positions and/or the corresponding GB/T 13000 code positions have been adjusted in this document (see Annex D).

9 Implementation level

9.1 General This document specifies three implementation levels. System software products that meet the corresponding implementation level shall provide input and output functions for all characters within the corresponding implementation level. 9.2 Implementation level 1 Implementation level 1 supports CJK unified Chinese characters (i.e., 0x82358F33~0x82359636) and CJK unified Chinese character extension A (i.e., 0x8139EE39~0x82358738) of the single-byte coded part, double-byte coded part and four-byte coded part of this document. Any product to which this document applies shall meet the requirements for implementation level 1. NOTE. According to the needs of software applications, implementation level 1 can also choose to support any one or more non-Chinese characters listed in Table 3. 9.3 Implementation level 2 Implementation level 2 contains implementation level 1.In addition, implementation level 2 also supports encoded Chinese characters that are not included in implementation level 1 in the "General Standard Chinese Character List". See Annex E for the code positions and glyphs of the Chinese characters included in the "General Standard Chinese Character List" in this document. The system software and supporting software shall meet the requirements for implementation level 2. NOTE. System software and supporting software include but not limited to operating system, database management system, and middleware (see GB/T 36475 for information on software product classification). 9.4 Implementation level 3 Implementation level 3 contains implementation level 2.In addition, implementation level 3 also supports all Chinese characters specified in this document and Kangxi radicals in Table 3. Products used for government services and public services shall meet the requirements of level 3. NOTE. Government services and public service industries include but are not limited to railway transportation, road transportation, water transportation, air transportation, multimodal transportation and transportation agency, postal services, monetary and financial services, insurance, land management, health, national institutions, social security, etc. (see GB/T 4754 for industry classification information).

Annex A

(normative) Character table of double-byte A.1 Content This table gives the glyphs and codes of double-byte coded characters. At the same time, the GB/T 13000 code position corresponding to this character is given. A.2 Description

Annex C

(normative) Character table of four-byte C.1 Contents This table gives the glyphs and codes of Chinese characters and some minority languages. At the same time, the GB/T 13000 code position corresponding to this character is also given. The fonts of other parts are omitted. C.2 Description

Annex E

(informative) Code positions of Chinese characters in "General Standard Chinese Character List" This document contains all 8105 standard Chinese characters in the "General Standard Chinese Character List" approved and released by the State Council of the People's Republic of China in 2013.Their code positions and font styles are shown in Table E.1.The arrangement order of the Chinese characters in the table is consistent with the order of the standard Chinese characters in the "General Standard Chinese Character List". The Chinese characters with serial number 1~3500 are first-level Chinese characters. The Chinese characters with serial numbers 3501~6500 are second- level Chinese characters. The Chinese characters with serial numbers 6501~8105 are third-level Chinese characters. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.


      

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