正则表达式:由嵌套括号和分号分隔 [英] Regex: Separated by nested parentheses and semicolon

问题描述

我的字符串如下所示(每一行是一个示例性字符串):

My strings look like the following (each row is one exemplrary string):

Smith, Anna (Univ Cambridge); Doe, Jane (Univ Vienna (Austria)); Doe, John (Univ Tokyo; MIT)

Mueller, Hans (FU Berlin (Germany)); Schmid, Julia (); Doe, John (CalTech); Boe, Jane (TU Wien)

Kim, Lee (Nazarbayev Univ (Kazakhstan); Univ Oxford)

换句话说，该模式包括 Surname，Name(Affiliation)； (或如果没有其他人，则不包含; )，从而可以可选地嵌套括号(())或包含; 或为空的().

In other words, the pattern comprises Surname, Name (Affiliation); (or without the ; if no other person follows), whereby the parentheses may be optionally nested ( () ) or contain a ; or be empty ().

我想提取每个名称和隶属关系，如下所示:

I want to extract each name and affiliation, as in:

Smith, Anna (Univ Cambridge)
Doe, Jane (Univ Vienna (Austria))
Doe, John (Univ Tokyo; MIT)
Mueller, Hans (FU Berlin (Germany))
Schmid, Julia ()
Doe, John (CalTech)
Boe, Jane (TU Wien)
Kim, Lee (Nazarbayev Univ (Kazakhstan); Univ Oxford)

执行此操作的正确RegEx是什么?

What would be the correct RegEx to do this?

我尝试使用(?< = \()(?:[^()] + | \([^)] + \))+ 效果不佳...

My attempt with (?<=\()(?:[^()]+|\([^)]+\))+ did not work well...

推荐答案

由于预期的匹配项只能具有一个嵌套的括号级别，因此可以使用

Since your expected matches can only have one nested parentheses level, you can use

\w+,\s*\w+\s*\([^()]*(?:\([^()]*\)[^()]*)*\);?

请参见 regex演示.

根据您的正则表达式库是否支持递归或平衡结构，可以进一步增强它以匹配任何深度的括号.

Depending on whether or not your regex library supports recursion, or balanced constructs, this can be further enhanced to match parenthetical phrases of any depth.

详细信息:

• \ w + -一个或多个单词字符
• ，-逗号
• \ s * -零个或多个空格
• \ w + \ s * -一个或多个单词，然后零个或多个空格字符
• \(-一个( char
• [^()] * -除(和)
以外的零个或多个字符
• (?:\([^()] * \)[^()] *)* -零个或多个(...)子字符串序列中间没有(和)，然后零个或多个字符，而不是(和)
• \);?-一个)，然后是一个可选的; .

• \w+ - one or more word chars
• , - a comma
• \s* - zero or more whitespaces
• \w+\s* - one or more word and then zero or more whitespace chars
• \( - a ( char
• [^()]* - zero or more chars other than ( and )
• (?:\([^()]*\)[^()]*)* - zero or more sequences of (...) substrings with no ( and ) in between and then zero or more chars other than ( and )
• \);? - a ) and then an optional ;.

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