[英]How can I get this regex right?
I am trying to split tokens with @
, and well meanwhile not allowing specific characters.我试图用@
分割令牌,同时不允许特定字符。 I came up with this我想出了这个
(@\w+[^ -+=(><)])
But it doesn't work precisely!但它不能准确地工作! Suppose our target string is this :假设我们的目标字符串是这样的:
(() >= @a -5 and () <= @7 and ()= @127 and () = @1-7 and ()= @name_asd ()= @'hey this is a string')
it doesn't get single character tokens, and also it seems to accept -
as a valid character while it shouldn't!它没有得到单个字符的标记,而且它似乎接受了-
作为一个有效的字符,而它不应该! I also wanted to be able to parse and match strings like:我还希望能够解析和匹配如下字符串:
@'something arbitrary with'
as well, but couldn't figure it out so far.也一样,但到目前为止无法弄清楚。
I need to get the token with @
altogether meaning I want我需要用@
完全表示我想要的令牌
@a For () >= @a -5
@7 For () <= @7
@127 For ()= @127
@1 For () = @1-7
@name_asd For ()= @name_asd
and
@'hey this is a string' For ()= @'hey this is a string'
See demo:见演示:
@(?:\w+|'[^']*')
Also place your -
at the end to avoid forming an unwanted range.同时将您的-
放在最后以避免形成不需要的范围。 See demo:见演示:
https://regex101.com/r/sJ9gM7/87 https://regex101.com/r/sJ9gM7/87
It wasn't getting single character tokens
because you have a space after single character and you have not allowed a space after \\w+
.它没有获得single character tokens
因为您在单个字符之后有一个空格,并且在\\w+
之后不允许有空格。
Here, try this:来,试试这个:
(@[\w]+)
https://regex101.com/r/xH1fP3/1 https://regex101.com/r/xH1fP3/1
It cuts out the -
but leaves the _
when in a string.它去掉了-
但在字符串中留下了_
。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.