如何在C＃正则表达式中查找缩写为单词(How to find abbreviations as words in a C# regular expression)

如何在C＃正则表达式中查找缩写为单词(How to find abbreviations as words in a C# regular expression)

我已经获得了一个字符串列表，可以在我的字符串中找到整个“单词”。 通常，使用\b锚点适用于大多数事情，除非我试图将＆字符作为单词找到或者缩写后面有一个点，因为\b在空格和＆字符之间不匹配，或经过一段时间和空间。

例如，找到这些字符串：

& b&w bpi p.

我正在尝试写一些类似的东西：

\b((&)|(b&w)|(bpi)|(p\.))\b

在测试字符串中：

my b&w and & and p. test.

我也尝试使用\s来检查空格，但我不想捕获空白，我也无法弄清楚如何不这样做。 然后它还需要检查字符串的开头和结尾，我相信。

I have been given a list of strings to find as whole "words" in my string. Generally, using the \b anchor works for most things except when I'm trying to find the & character as a word or if the abbreviation has a dot after it since the \b doesn't match between the space and the & character, or after a period and space.

For instance to find these strings:

& b&w bpi p.

I'm trying to write something like:

\b((&)|(b&w)|(bpi)|(p\.))\b

In a test string:

my b&w and & and p. test.

I've also tried using \s to check for whitespace but I don't want to capture the whitespace and I haven't been able to figure out how not to. It would also then need to check for beginning and ending of the string as well I believe.

最满意答案

而不是使用单词边界（\ b），您可以使用查找（空格）OR ^开头或行结尾的断言...如下所示：

(?<=^|\s)([^\s]*)(?=\s|$)

工作正则表达式示例：

http://regex101.com/r/rJ0wU4

测试字符串：

my b&w and & and p. test.

火柴：

"my", "b&w", "and", "&", "and", "p.", "test."

Instead of using word boundaries (\b) you could use look around assertions for (space) OR ^beginning or $end of line.. like so:

(?<=^|\s)([^\s]*)(?=\s|$)

Working regex example:

http://regex101.com/r/rJ0wU4

Test string:

my b&w and & and p. test.

Matches:

"my", "b&w", "and", "&", "and", "p.", "test."