所有子域名到www都有例外
[英]All subdomains to www with exceptions
问题描述
I have a regex which is bothering me really! 
我有一个正在困扰我的正则表达式！
What I want, is all subdomains except www.domain.com goes to www.domain.com This actually works, but w.domain.com doesn't match. 我想要的是除了www.domain.com之外的所有子www.domain.com都访问www.domain.com这实际上有效，但是w.domain.com不匹配。 Actually, if the subdomain contains the character "w" it fails. 实际上，如果子域包含字符“w”，则失败。
This is how it looks: 这是它的样子：
[^www]+\.domain.com
What am I doing wrong? 我究竟做错了什么？
3 个解决方案
解决方案1
2 已采纳 2012-04-24 08:41:53
brackets, [] , denote a character class. 括号[]表示一个字符类。 Using ^ in a character class means you're negating it. 在字符类中使用^意味着你在否定它。 [^www] actually means any character except w is going to be matched. [^www]实际上意味着除了 w 之外的任何字符都将被匹配。
解决方案2
1 2012-04-24 09:12:35
.*(?<!www).domain.com
Will match all subdomains EXCEPT www.domain.com 将匹配除www.domain.com所有子域
Check here http://regexr.com?30od1 点击这里http://regexr.com?30od1
解决方案3
0 2014-11-17 19:09:12
I know this is old - but to avoid a duplicate post -- how would you do the opposite? 我知道这是旧的 - 但为了避免重复的帖子 - 你会怎么做相反的事情？
allow www (optionally) but exclude all subdomains? 允许www（可选）但排除所有子域名？
ALLOWED www.domain.com domain.com 允许www.domain.com domain.com
NOT ALLOWED spider.domain.com me.domain.com 不允许spider.domain.com me.domain.com
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