正则表达式从字符串中提取电子邮件 [英] regex extract email from strings

问题描述

我想知道是否可以通过使用正则表达式从以下字符串中提取电子邮件?

I want to know if by using regular expressions I am able to extract emails from the following strings?

以下RE模式与所有字符串均.*@.*匹配.尽管不是全部，它在某些字符串上也能正常工作.

The following RE pattern is .*@.*match with all strings. It has worked fine with some of the string, though with not all.

我想匹配所有与电子邮件模式匹配的字符串，包括(some-url.com)或(some-url.co.id)之类的所有域

I want to match all strings match with email pattern include all domain like (some-url.com) or (some-url.co.id)

boleh di kirim ke email saya [e-mail] tks...
boleh minta kirim ke [e-mail]. 
[e-mail]. .
[e-mail] Senior Quantity Surveyor
[e-mail], terimakasih bu Cindy Hartanto
[e-mail] saya mau dong bu cindy
[e-mail] 
Hi Cindy ...pls share the Salary guide to [e-mail] thank a

推荐答案

您可以使用正则表达式/([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9_-]+)/创建一个函数，以从长文本中提取电子邮件ID

You can create a function with regex /([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9_-]+)/ to extract email ids from long text

function extractEmails ( text ){
    return text.match(/([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9_-]+)/gi);
    }

运行中的脚本:运行以查看结果

Script in action: Run to see result

var text = `boleh di kirim ke email saya [e-mail] tks... boleh minta kirim ke [e-mail]. [e-mail]. . 
[e-mail] Senior Quantity Surveyor
[e-mail], terimakasih bu Cindy Hartanto
[e-mail] saya mau dong bu cindy
[e-mail] 
Hi Cindy ...pls share the Salary guide to [e-mail] thank a`; 

function extractEmails ( text ){
    return text.match(/([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9_-]+)/gi);
    }
     
    $("#emails").text(extractEmails(text));

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<p id="emails"></p>

尽管上述代码段中的正则表达式可以匹配大多数电子邮件格式，但是如果您仍需要匹配大于99％的电子邮件格式(包括小写)，则可以使用正则表达式，如下所示

运行中的脚本:运行以查看结果

Script in action: Run to see result

var text = `boleh di kirim ke email saya [e-mail] tks... boleh minta kirim ke [e-mail]. [e-mail]. . 
[e-mail] Senior Quantity Surveyor
[e-mail], terimakasih bu Cindy Hartanto
[e-mail] saya mau dong bu cindy
[e-mail] 
Hi Cindy ...pls share the Salary guide to [e-mail] thank a`; 

function extractEmails ( text ){
    return text.match(/(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])/gi);
    }
     
    $("#emails").text(extractEmails(text));

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.2/jquery.min.js"></script>
<p id="emails"></p>

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