blocks|key|1006334|text|/regexp?/++++|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1006335|​|unstyled|1006336|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>/regexp?/ 
</code></pre>

blocks|key|1006352|text|regex更短；因此，better+:)也更容易发音。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1006353|entityMap^0|0|5|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

<code>regex</code> is shorter; therefore, better :) Also, it is easier to pronounce.

blocks|key|1220679|text|公认的速记是"regex“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1220680|在我的经验中，"Regexp“只在Javascript的上下文中使用，在Javascript中表示正则表达式的对象实际上称为RegExp。|offset|length|style|CODE|1220681|entityMap^0|0|1Q|6|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

The accepted shorthand is "regex".

"Regexp" is only used, in my experience, in the context of Javascript where the object representing a regular expression is actually called <code>RegExp</code>.

blocks|key|1006328|text|我认为“正则表达式”更常见(例如，Java包java.util.regex)。如果10,000名猫王的粉丝不会错，那么我会根据数字的力量投票支持。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1006329|entityMap^0|M|F|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

I think "regex" is more common (e.g., Java package <code>java.util.regex</code>). If 10,000 Elvis fans can't be wrong, then I'd vote for that on the strength of numbers.

blocks|key|1006635|text|我认为是时候停止用速记或缩写来思考问题了。我们在日常任务中使用的正则表达式与计算机科学或形式语言理论中的正则表达式完全不同。这就是为什么Larry+Wall和其他著名的Perl社区成员多年来一直更喜欢“正则表达式”：称它们为RegExp或RegEx，甚至RE，意味着一种不再适用的关系。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1006636|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

I think it's time to quit thinking in terms of shorthands or abbreviations. The regexes that we use in our daily tasks are a different breed entirely from the regular expressions of computer science or formal language theory. This is why Larry Wall and other prominent members of the Perl community have preferred "regex" for years: to call them RegExp or RegEx, or even RE, suggests a relationship that no longer applies.

blocks|key|1006400|text|"regex“更常见，也是在Perl常见问题解答中使用的。谷歌给出了450万次"regex“和360万次”regexp“。维基百科两者都用到了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1006401|倾向于什么?如果你交替使用它们，我不认为任何人会认为你不好。|1006402|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

"regex" is more common and what is used in the Perl FAQ. Google gives 4.5 million hits for "regex" and 3.6 million for "regexp." Wikipedia uses both.

What do you prefer? I don't think anyone will think of you badly if you use them interchangeably.

blocks|key|1006679|text|我也听过/读过：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1006680|reg-exp|offset|length|style|CODE|1006681|还有一些人更喜欢regex，因为复数形式的regexes更好！(除了其他答案所解释的原因之外)。|1006682|.NET+regex：System.Text.RegularExpressions.Regex|1006683|JavaScript+regexp：RegExp|1006684|entityMap^0|0|0|7|0|8|5|L|7|0|5|5|B|10|0|B|6|I|6|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@$D|R|E|S|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|T|8|@$D|U|E|V|F|G]|$D|W|E|X|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|Y|8|@$D|Z|E|10|F|G]|$D|11|E|12|F|G]]|9|@]|A|$]]|$1|L|3|M|5|6|7|13|8|@$D|14|E|15|F|G]|$D|16|E|17|F|G]]|9|@]|A|$]]|$1|N|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|O|$]]

I have also heard/read:

<code>reg-exp</code>

And some people prefer <code>regex</code> because the plural <code>regexes</code> is "nicer"! (in addition to reasons explained by other answers).

.NET <code>regex</code> : <code>System.Text.RegularExpressions.Regex</code>

JavaScript <code>regexp</code> : <code>RegExp</code>

blocks|key|1006528|text|两者都适用于书面讨论，尽管您可能不想太频繁地大声说"regexp“;)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1006529|对于在代码中的使用，我认为regexp可能更清晰。尤其是在使用大小写的情况下，比如RegEx/RegExp。Ex后缀通常用来表示更简单函数的扩展版本...例如，Windows+API中的CreateWindow/CreateWindowEx，所以就代码的可读性而言，RegExp可能会更明确一些。|1006530|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

Both are fine for written discourse, though you probably don't want to say "regexp" out loud too often ;)

For use in code, I think regexp is probably clearer. Especially if you use capitalization such as RegEx/RegExp. An Ex suffix is often used to indicate an extended version of a simpler function... i.e. CreateWindow/CreateWindowEx in the Windows API, so RegExp might be a little less ambiguous as far as readability of code goes.

blocks|key|1220789|text|我更喜欢"re"，但这取决于语言。JavaScript将其列为"RegExp"，而大多数其他语言仅将其称为“RegEx”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1220790|在谷歌上搜索时，使用较短的版本。但在论坛中，请使用"re“;)|1220791|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I prefer "re", but it depends on the language. JavaScript lists it as "RegExp", whereas most other languages just call it "RegEx."

When googling, go with the shorter version. But in forums, use "re" ;)

Most of us computer programmers are pretty obsessed about correct terminology. I certainly am, especially because sometimes changing just one character in a word can drastically change its meaning.

So... what is the correct shorthand for "regular expression"? Is it "regex" or "regexp"? On the internet I see both uses, although "regex" seems to be more popular, and the tag list here on SO also includes just "regex". But plenty of people also use "regexp" in their questions.

Which is the correct shorthand - "regex" or "regexp"

Windows

Java

Perl

我们大多数计算机程序员都对正确的术语非常着迷。我当然是，特别是因为有时只改变一个单词中的一个字符就会极大地改变它的意思。所以..。“正则表达式”的正确简写是什么？是"regex“还是"regexp"？我在互联网上看到了这两种用法，尽管"regex“似乎更受欢迎，而且这里的标签列表也只包括"regex”。但很多人也会在提问中使用"regexp“。

问哪个是正确的缩写- "regex“还是"regexp”
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