Javascript 正则表达式匹配带有连字符和/或撇号的单词

Regex to match words with hyphens and/or apostrophes

提问by empedocle

I was looking for a regex to match words with hyphens and/or apostrophes. So far, I have:

我正在寻找一个正则表达式来匹配带有连字符和/或撇号的单词。到目前为止，我有：

(\w+([-'])(\w+)?[']?(\w+))

and that works most of the time, though if there's a apostrophe and then a hyphen, like "qu'est-ce", it doesn't match. I could append more optionals, though perhaps there's another more efficient way?

这在大多数情况下都有效，但如果有撇号和连字符，例如“qu'est-ce”，则不匹配。我可以附加更多的选项，但也许还有另一种更有效的方法？

Some examples of what I'm trying to match: Mary's, High-school, 'tis, Chambers', Qu'est-ce.

我试图匹配的一些例子：玛丽的，高中，'tis，Chambers'，Qu'est-ce。

回答by alpha bravo

use this pattern

使用这种模式

(?=\S*['-])([a-zA-Z'-]+)

Demo

演示

(?=                 # Look-Ahead
  \S                # <not a whitespace character>
  *                 # (zero or more)(greedy)
  ['-]              # Character in ['-] Character Class
)                   # End of Look-Ahead
(                   # Capturing Group (1)
  [a-zA-Z'-]        # Character in [a-zA-Z'-] Character Class
  +                 # (one or more)(greedy)
)                   # End of Capturing Group (1)

回答by Patrick

debuggex.com is a great resource for visualizing these sorts of things

debuggex.com 是可视化此类事物的绝佳资源

\b\w*[-']\w*\bshould do the trick

\b\w*[-']\w*\b应该做的伎俩

回答by OrderNChaos

[\w'-]+would match pretty much any occurrence of words with (or without) hyphens and apostrophes, but also in cases where those characters are adjacent. (?:\w|['-]\w)+should match cases where the characters can't be adjacent.

[\w'-]+几乎可以匹配任何带有（或不带有）连字符和撇号的单词，但也可以匹配这些字符相邻的情况。 (?:\w|['-]\w)+应该匹配字符不能相邻的情况。

If you need to be sure that the word contains hyphens and/or apostrophes and that those characters aren't adjacent maybe try \w*(?:['-](?!['-])\w*)+. But that would also match ' and - alone.

如果您需要确保该单词包含连字符和/或撇号并且这些字符不相邻，则可以尝试\w*(?:['-](?!['-])\w*)+. 但这也将匹配 ' 和 - 单独。

回答by Rob Raisch

The problem you're running into is that you actually have three possible sub-patterns: one or more chars, an apostrophe followed by one or more chars, and a hyphen followed by one or more chars.

您遇到的问题是您实际上有三种可能的子模式：一个或多个字符、一个撇号后跟一个或多个字符，以及一个连字符后跟一个或多个字符。

This presumes you don't wish to accept words that begin or end with apostrophes or hyphens or have hyphens next to apostrophes (or vice versa).

这假定您不希望接受以撇号或连字符开头或结尾的单词，或者在撇号旁边有连字符（反之亦然）。

I believe the best way to represent this in a RegExp would be:

我相信在 RegExp 中表示这一点的最佳方式是：

/\b[a-z]+(?:['-]?[a-z]+)*\b/

/\b[az]+(?:['-]?[az]+)*\b/

which is described as:

它被描述为：

\b                   # word-break
[a-z]+               # one or more
(?:                  # start non-matching group
  ['-]?              # zero or one
  [a-z]+             # one or more
)*                   # end of non-matching group, zero or more
\b                   # word-break

which will match any word that begins and ends with an alpha and can contain zero or more groups of either a apos or a hyphen followed by one or more alpha.

它将匹配任何以 alpha 开头和结尾的单词，并且可以包含零个或多个组的 apos 或连字符，后跟一个或多个 alpha。

回答by iplus26

How about: \'?\w+([-']\w+)*\'?

怎么样： \'?\w+([-']\w+)*\'?

demo

演示

I suppose these words shouldn't be matched:

我想这些词不应该匹配：

• something-or -something: start or end with -
• some--thingor some'-thing: -not followed by a character
• some'': two hyphens

• something-或-something：开始或结束-
• some--thing或some'-thing:-后面没有一个字符
• some'': 两个连字符