Chinese characters only: ^ [\ u4e00-\ u9fa5] + $
2e80 ~ 33ffh: Symbol area of China, Japan, and South Korea. Reception of Kangxi Dictionary heads, China-Japan-South Korea auxiliary departments heads, phonetic symbols, Japanese Kana, Korean Notes, Chinese-Japan-South Korea symbols, punctuation marks, circled or including Rune numbers, months, and Japanese Kana combination, unit, year, month, date, and time.
3400 ~ 4 dffh: Japan and South Korea recognized the expansion of ideographic text area A, a total of 6,582 Chinese and Korean characters.
4e00 ~ 9 fffh: Japan and South Korea recognized the ideographic text area, a total of 20,902 Chinese and Korean characters.
A000 ~ A4ffh: Yi text area, which contains the texts and roots of Yi people in southern China.
Ac00 ~ D7ffh: A combination area of Korean and pinyin. It contains text in Korean Notes.
F900 ~ Faffh: compatible with ideographic text area, a total of 302 Chinese and Korean characters.
Fb00 ~ Fffdh: it is a text expression area that contains a combination of Latin characters, Hebrew characters, Arabic characters, Chinese-Japanese vertices, small characters, halfwidth characters, and fullwidth characters.