DECwindows Motif supports the following Simplified Chinese (Hanzi) character sets:
The GB2312-80 character set is a standard published by the State Bureau of Standardization of the People's Republic of China (PRC) in 1980 and put in force in May, 1981.
GB2312-80 defines 7,445 characters, including 6,763 Chinese characters in the following categories:
GB2312-80 defines 682 graphic symbols placed in rows 1–9.
GB2312-80 defines 3,755 frequently used characters placed in rows 16–55.
GB2312-80 defines 3,008 less frequently used characters placed in rows 56–87.
The GB2312-80 code table is divided into 94 rows (Qu), numbered from 1 to 94. Each row has 94 columns (Wei), also numbered from 1 to 94. Figure 1-1 illustrates the GB2312-80 character set.
Figure 1-1. GB2312-80 Character Set
| Row 1 |
Rows 1-9
GB 2312 Special Characters |
| Row 10 |
Rows 10-15
Reserved
|
| Row 16 |
Rows 16-55
GB 2312 Level 1 Chinese Characters
|
| Row 56 |
Rows 56-87
GB 2312 Level 2 Chinese Characters
|
| Row 88 |
Rows 88-94
Reserved
|
The extended GB character set provides 8,836 (94 x 94) code points for defining user-defined characters. The 8,836 code points are divided into two regions:
The extended GB code table is similar to the GB2312 code table. It is divided into 94 rows and each row has 94 columns.
The GBK character set is an extension to the GB 2312-80 character set. GBK includes all of the Simplified Chinese (Hanzi) characters specified by the ISO 10646 standard (also known as the GB13000:1.93 character set) that are not already included in GB 2312-80. GBK is therefore defined as a normative annex of GB13000.1-93.
The GB18030-2000 character set, defined by the Chinese National Standard organization, further extends GBK by means of 4-byte code points. That is, the GB18030-2000 character set has 4-byte encoding in addition to the 1-byte and 2-byte encoding of GBK.
GB18030-2000 incorporates GBK support for the Hanzi characters specified by Unicode Version 3.0 and the ISO/IEC 10646-2001 standard.