检测电子邮件使用正则表达式的文本 [英] Detect email in text using regex

问题描述

我要检测文本格式的邮件，这样我就可以把对他们的锚标记与标签上一篇锚。我有正则表达式的，但代码还可以检测它已经由锚标记封装或锚标记的mailto参数的内部电子邮件

I want to detect emails in text format so that I can put an anchor tag over them with mailto tag in anchor. I have the regex for it but the code also detects emails which are already encapsulated by anchor tag or is inside the anchor tag mailto parameter.

我的正则表达式是：

([\w-]+(\.[\w-]+)*@([a-z0-9-]+(\.[a-z0-9-]+)*?\.[a-z]{2,6}|(\d{1,3}\.){3}\d{1,3})(:\d{4})?)

但它检测到3在下面的示例文本匹配：

But it detects 3 matches in the following sample text:

ttt <a href='mailto:[e-mail]'>[e-mail]</a> abc [e-mail]

我只想[e-mail]通过正则表达式匹配。

I want only [e-mail] to be matched by the regex.

推荐答案

非常相似，我的以前回答您的其他问题，试试这个

Very similar to my previous answer to your other question, try this

(?<!(?:href=['"]mailto:|<a[^>]*>))(\b[\w-]+(\.[\w-]+)*@([a-z0-9-]+(\.[a-z0-9-]+)*?\.[a-z]{2,6}|(\d{1,3}\.){3}\d{1,3})(:\d{4})?)

的唯一的事情是真的不同的是，电子邮件开始之前，边界 \b 的单词。

The only thing that is really different is the word boundary \b before the start of the email.

请参阅类似表述的在这里Regexr ，它不完全一样，因为Regexr不支持在后向交替和无限长度。

See a similar expression here on Regexr, its not exactly the same, because Regexr does not support alternations and infinite length in the lookbehind.

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