What are the differences between regular expressions for search and replacement in vim and those in programming languages such as js?
What are the differences between the regular expressions used to replace content in vim and those in other programming languages?
I only know that the first matched group in vim is \1, which is equivalent to $1 in js.
元字符 含义说明
. 匹配任意字符
\[abc\] 匹配放括号中的任意字符，也可以表示范围，例如[a-z0-9]
\[^abc\] 匹配除方括号中字符的任意其他字符
\d 匹配阿拉伯数字，等同于[0-9]
\D 匹配除阿拉伯数字之外的其他字符，等同于[^0-9]
\x 匹配十六进制数字，等同于[0-9A-Fa-f]
\X 匹配十六进制之外的任意字符，等同于[^0-9A-Fa-f]
\w 匹配单词字母，等同于[0-9A-Za-z_]
\W 匹配单词字母之外的任意字符，等同于[^0-9A-Za-z_]
\t 匹配<Tab\>字符
\s 匹配空白字符，等同于[ \t]
\S 匹配非空白字符，等同于[^ \t]
\* 匹配0-任意个
\+ 匹配1-任意个
\? 匹配0-1个
\{n,m\} 匹配n-m个
\{n,\} 匹配n-任意个
\{,m\} 匹配0-m个
& 匹配行尾
^ 匹配行首
\< 匹配单词词首
