如何解析格式为“名称<电子邮件>"的字符串 [英] How To Parse String in format "Name <Email>"

问题描述

我有一种方法可以接收以下格式之一的联系人:

I have a method which receives a contact in one of the following formats:

1-"[e-mail]"

1 - "[e-mail]"

2-名称"或名称"(可以存在空格)

2 - "Name <[e-mail]>" OR "Name<[e-mail]>" (Spaces can exist)

如果格式为(1)，我什么也不做.对于(2)，我需要解析名称和电子邮件.

If it is in format (1) I do nothing. In case of (2) I need to parse the name and email.

我不知道我将以哪种格式接收电子邮件.但这将是两者之一.

I never know in which format I will get the emails. But it will be one of the two.

我该怎么做?

推荐答案

实际上已经有一个名为

There is actually already a .NET class called MailAddress that can do this for you quite simply.
UPDATE: It can not only get the display name but also the email address, username, and host.

首先包含using System.Net.Mail，然后您可以通过以下方式获取信息:

First include using System.Net.Mail and then you can get the info with something like this:

MailAddress email = new MailAddress("Johnny <[e-mail]>");
string displayName = email.DisplayName;
string address = email.Address;
string user = email.User;
string host = email.Host;

这将与您描述的两种情况一起使用，因此"Name <[e-mail]>"和"Name<[e-mail]>"都可以工作，并为您提供Name.我继续并创建了一个可以在此处找到的测试，它将为您提供以下示例输出:

This will work with the two scenarios that you described so "Name <[e-mail]>" and "Name<[e-mail]>" both work and give you Name. I went on and created a test that can be found here that will give you the sample output of:

'[e-mail]' =
   DisplayName = ''
   Address = '[e-mail]'
   User = 'email'
   Host = 'domain.com'
'Name<[e-mail]>' =
   DisplayName = 'Name'
   Address = '[e-mail]'
   User = 'email'
   Host = 'domain.com'
'Name <[e-mail]>' =
   DisplayName = 'Name'
   Address = '[e-mail]'
   User = 'email'
   Host = 'domain.com'

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