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问题描述
我已经做了一些测试，但我想问问是否有人发现这个用于电子邮件验证的 ruby 正则表达式有问题:
I have done some testing but I wanted to ask if anyone sees a problem with this ruby regular expression for email validation:
/A([^@s]+)@((?:[-a-z0-9]+.)+[a-z]{2,})/i
好看吗?
推荐答案
你已经很接近了，只需要再添加几个字符:
You were close, have to add just a few more characters:
(?:(?:
)?[ ])*(?:(?:(?:[^()<>@,;:\".[] 00- 31]+(?:(?:(?:
)?[ ]
)+||(?=[["()<>@,;:\".[]]))|"(?:[^"
\]|\.|(?:(?:
)?[ ]))*"(?:(?:
)?[ ])*)(?:.(?:(?:
)?[ ])*(?:[^()<>@,;:\".[] 00- 31]+(?:(?:(
?:
)?[ ])+||(?=[["()<>@,;:\".[]]))|"(?:[^"
\]|\.|(?:(?:
)?[
]))*"(?:(?:
)?[ ])*))*@(?:(?:
)?[ ])*(?:[^()<>@,;:\".[] 00-
31]+(?:(?:(?:
)?[ ])+||(?=[["()<>@,;:\".[]]))|[([^[]
\]|\.)*
](?:(?:
)?[ ])*)(?:.(?:(?:
)?[ ])*(?:[^()<>@,;:\".[] 00- 31]+
(?:(?:(?:
)?[ ])+||(?=[["()<>@,;:\".[]]))|[([^[]
\]|\.)*](?:
(?:
)?[ ])*))*|(?:[^()<>@,;:\".[] 00- 31]+(?:(?:(?:
)?[ ])+|
|(?=[["()<>@,;:\".[]]))|"(?:[^"
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)?[ ]))*"(?:(?:
)
?[ ])*)*<(?:(?:
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r
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\]|\.)*](?:(?:
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.(?:(?:
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不，我不是在开玩笑:http://www.ex-parrot.com/~pdw/Mail-RFC822-Address.html
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