普通的前pression，提取子字符串在一些指定的格式不工作的所有可能性 [英] Regular expression that extracts sub-strings that are in some specified format not working for all possibilities

问题描述

从我的previous问题继续在这里：需要定期EX pression，提取子字符串在一些指定的格式。该建议有解决的办法解决我的问题，但不是全部。

：我遇到另一个字符串样品从以下列格式的子字符串必须被提取出来

  

@这里的任何字符]。[任意字符这里]。[这里的任何字符] .......等等。

例如，我有一个字符串：

  

我的位置是@ XYZ大陆]。[XYZ国家] [XYZ状态]。[XYZ市。在地图上[XYZ街。你是最欢迎随时存在。

previous的解决方案是在此字符串工作的罚款。输出：

  @ [XYZ大陆]。[XYZ国家] [XYZ状态]。[XYZ市] [XYZ街]
 

但是，该解决方案的子串外只为 + 检查和空格（的点击这里查看演示）。但我想要的是子串的左，右必须被忽略不管它是字母数字的，空格或其他特殊字符。例如：

  

您好@ XYZ Continent1]。[XYZ国家1] + @ XYZ Continent2]。[XYZ COUNTRY2] 1 @ XYZ Continent3]。[XYZ COUNTRY3]那里。

输出必须是：

  @ [XYZ Continent1]。[XYZ国家1]
@ [XYZ Continent2]。[XYZ COUNTRY2]
@ [XYZ Continent3]。[XYZ COUNTRY3]
 

从previous问题解决方法：

（？！＆LT; \\ W）

  @（| [？* \\] \\ W + \\ B \\（= [\\ S +] | $））
 

解决方案

您可以使用以下方法：

 ; @（小于\\ W？！）（（？：？\\ [[^ \\]] + \\] \\）+）
 

请参阅演示

Continuing from my previous question here: Need regular expression that extracts sub-strings that are in some specified format. The solution that was suggested there solved my problem but not completely. I came across another string sample from which the the sub-strings in following format must be extracted:

@[any character here].[any character here].[any character here]....... and so on.

For example, I have a string:

My location is @[XYZ Continent].[XYZ Country].[XYZ State].[XYZ City].[XYZ Street] on the map. You are most welcome there anytime.

Previous solution is working fine on this string. Output:

@[XYZ Continent].[XYZ Country].[XYZ State].[XYZ City].[XYZ Street]

But that solution only checks for + and whitespace outside the sub-string(CLICK HERE TO SEE DEMO). But what I want is that the right and left of the sub-string must be ignored no matter if it is alphnumeric, whitespace or another special character. For example:

Hello@[XYZ Continent1].[XYZ Country1]+@[XYZ Continent2].[XYZ Country2]1@[XYZ Continent3].[XYZ Country3]there.

The output must be:

@[XYZ Continent1].[XYZ Country1]
@[XYZ Continent2].[XYZ Country2]
@[XYZ Continent3].[XYZ Country3]

Solution from previous question:

(?<!\w)@(\w+\b|\[.*?\](?=[\s+]|$))

解决方案

You can use the following:

(?<!\w)@((?:\[[^\]]+\]\.?)+)

See DEMO

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