这是我尝试的：这似乎是'最接近' \[\S[a-zA-Z0-9]+@[0-8]+((\s[a-zA-Z]+=".+")+[\]]+)+

\[[a-zA-Z0-9]+@[0-8]+(\s[a-zA-Z]+=".+"(?=\])+)+
\[\S[a-zA-Z0-9]+@[0-8]+(\s[a-zA-Z]+=".+"(?=\])+)+
\[[^ ][a-zA-Z0-9]+@[0-8]+(\s[a-zA-Z]+=".+"(?=\])+)+
\[\S[a-zA-Z0-9]+@[0-8]+((\s[a-zA-Z]+=".+")+\S[\]]+)+
\[\S[a-zA-Z0-9]+@[0-8]+((\s[a-zA-Z]+=".+")+[\]]+)\S
(\[\S[a-zA-Z0-9]+@[0-8]+((\s[a-zA-Z]+=".+")+[\]]+)+\S)

但是我保留匹配] ...（括号后的空格），基本上我应该只匹配满足[*@# something="value" ...]的行，其中something=“value”可以重复。如果在同一行上有另一个括号，它应该作为一行匹配，括号之间没有空格... [*@# something="val"][*@# something="val"]
下面是我测试的数据：

invalid (do not match)
; should not match, space between ][
[Example1SDID@32473 iut="3" eventSource="Application" eventID="1011"] [example1gPriority@32473 class="high"]
; should not match, space after [ and/or ]
[ Example2aSDID@32473 iut="3" eventSource="Application" eventID="1011"][example2fPriority@32473 class="high"]
[Example2bSDID@32473 iut="3" eventSource="Application" eventID="1011"][ example2ePriority@32473 class="high"]
[Example2cSDID@32473 iut="3" eventSource="Application" eventID="1011" ][ example2dPriority@32473 class="high"]

[Example3SDID@32473 iut="3" eventSource="Application" eventID="1011"][example2Priority@32473 nothing]
[Example2SDID@32473 iut="3" eventSource="Application" eventID="1011"][example2Priority@32473 class="high" ]
[Example2SDID@32473 iut="3" eventSource="Application" eventID="1011"][example2Priority@32473 class="high" ]
[this@that]
[example2Priority@32473 nothing]
[example4SDID@32473 iut="3" eventSource="Application" eventID="1011" ]

[asldkf;asd;fjas;dfj;asdjkf;asjkdffkdk]
[asdfas;dfjasdf
dfdss]

valid (match)
[example4SDID@32473 iut="3" eventSource="Application" eventID="1011"]
[example5SDID@32473 iut="3"]
[example6SDID@32473 iut="3" eventSource="Application" eventID="1011"][example6Priority@32473 class="high"]