正则表达式 [:graph:] 含义

Posted 2022-04-24 jordandan

[:graph:]

代表printable and visible的字符,是除空格符(空格键与[TAB]键)之外的所有按键,

控制字符不算[:graph:]

 

https://www.regular-expressions.info/posixbrackets.html

 

 

POSIX	Description	ASCII	Unicode	Shorthand	Java
[:alnum:]	Alphanumeric characters	[a-zA-Z0-9]	[\pL&\pNd]		\pAlnum
[:alpha:]	Alphabetic characters	[a-zA-Z]	\pL&		\pAlpha
[:ascii:]	ASCII characters	[\x00-\x7F]	\pInBasicLatin		\pASCII
[:blank:]	Space and tab	[ \t]	[\pZs\t]	\h	\pBlank
[:cntrl:]	Control characters	[\x00-\x1F\x7F]	\pCc		\pCntrl
[:digit:]	Digits	[0-9]	\pNd	\d	\pDigit
[:graph:]	Visible characters (i.e. anything except spaces, control characters, etc.)	[\x21-\x7E]	[^\pZ\pC]		\pGraph
[:lower:]	Lowercase letters	[a-z]	\pLl		\pLower
[:print:]	Visible characters and spaces (i.e. anything except control characters, etc.)	[\x20-\x7E]	\PC		\pPrint
[:punct:]	Punctuation and symbols.	[!"#$%&‘()*+,  \-./:;<=>[email protected]  [\\\]^_`|~]	[\pP\pS]		\pPunct
[:space:]	All whitespace characters, including line breaks	[ \t\r\n\v\f]	[\pZ\t\r\n\v\f]	\s	\pSpace
[:upper:]	Uppercase letters	[A-Z]	\pLu		\pUpper
[:word:]	Word characters (letters, numbers and underscores)	[A-Za-z0-9_]	[\pL\pN\pPc]	\w
[:xdigit:]	Hexadecimal digits	[A-Fa-f0-9]	[A-Fa-f0-9]		\pXDigit