Gea-Suan Lin's BLOG

用 Regular Expression 表示合法 e-mail 位置似乎是每隔一陣子就會被拿出來大家笑的東西？

Photo Matt 提到的 Validate Emails：

(?:(?:\r\n)?[ \t])*(?:(?:(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t]

)+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?: \r\n)?[ \t])*)(?:\.(?:(?:\r\n)?[

\t])*(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:( ?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t])*))*@(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\0 31]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\

](?:(?:\r\n)?[ \t])*)(?:\.(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+ (?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:

(?:\r\n)?[ \t])*))*|(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z |(?=[\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n) ?[ \t])*)*\<(?:(?:\r\n)?[

\t])*(?:@(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\ r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*)(?:\.(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n) ?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t] )*))*(?:,@(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])* )(?:\.(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t]

)+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*))*) *:(?:(?:\r\n)?[ \t])*)?(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t])+

|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r \n)?[ \t])*)(?:\.(?:(?:\r\n)?[

\t])*(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?: \r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[ \t

]))*”(?:(?:\r\n)?[ \t])*))*@(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031 ]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](

?:(?:\r\n)?[ \t])*)(?:\.(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(? :(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?

:\r\n)?[ \t])*))*\>(?:(?:\r\n)?[ \t])*)|(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(? :(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)? [

\t]))*”(?:(?:\r\n)?[ \t])*)*:(?:(?:\r\n)?[

\t])*(?:(?:(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]| \\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t])*)(?:\.(?:(?:\r\n)?[ \t])*(?:[^()<>

@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|” (?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t])*))*@(?:(?:\r\n)?[ \t] )*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t])+|\Z|(?=[\[”()<>@,;:\\

“.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[ \t])*)(?:\.(?:(?:\r\n)?[

\t])*(? :[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[

\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*))*|(?:[^()<>@,;:\\”.\[\] \000- \031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\.|( ?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t])*)*\<(?:(?:\r\n)?[ \t])*(?:@(?:[^()<>@,;

:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([

^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[ \t])*)(?:\.(?:(?:\r\n)?[

\t])*(?:[^()<>@,;:\\” .\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\

]\r\\]|\\.)*\](?:(?:\r\n)?[ \t])*))*(?:,@(?:(?:\r\n)?[

\t])*(?:[^()<>@,;:\\”.\ [\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\

r\\]|\\.)*\](?:(?:\r\n)?[ \t])*)(?:\.(?:(?:\r\n)?[

\t])*(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]

|\\.)*\](?:(?:\r\n)?[ \t])*))*)*:(?:(?:\r\n)?[

\t])*)?(?:[^()<>@,;:\\”.\[\] \0 00-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\ .|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t])*)(?:\.(?:(?:\r\n)?[ \t])*(?:[^()<>@,

;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|”(? :[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t])*))*@(?:(?:\r\n)?[ \t])* (?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t])+|\Z|(?=[\[”()<>@,;:\\”.

\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[ \t])*)(?:\.(?:(?:\r\n)?[

\t])*(?:[ ^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\]

]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[ \t])*))*\>(?:(?:\r\n)?[

\t])*)(?:,\s*( ?:(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\ “.\[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t])*)(?:\.(?:( ?:\r\n)?[

\t])*(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[ \t])+|\Z|(?=[

\[”()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t ])*))*@(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t

])+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*)(? :\.(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t])+|

\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*))*|(?: [^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”.\[\ ]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t])*)*\<(?:(?:\r\n) ?[

\t])*(?:@(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”

()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*)(?:\.(?:(?:\r\n) ?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t])+|\Z|(?=[\[”()<>

@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*))*(?:,@(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t])+|\Z|(?=[\[”()<>@,

;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*)(?:\.(?:(?:\r\n)?[ \t] )*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t])+|\Z|(?=[\[”()<>@,;:\\

“.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[ \t])*))*)*:(?:(?:\r\n)?[

\t])*)? (?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[

\t])+|\Z|(?=[\[”()<>@,;:\\”. \[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t])*)(?:\.(?:(?: \r\n)?[

\t])*(?:[^()<>@,;:\\”.\[\] \000-\031]+(?:(?:(?:\r\n)?[ \t])+|\Z|(?=[\[

“()<>@,;:\\”.\[\]]))|”(?:[^\”\r\\]|\\.|(?:(?:\r\n)?[

\t]))*”(?:(?:\r\n)?[ \t]) *))*@(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t])

+|\Z|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*)(?:\ .(?:(?:\r\n)?[ \t])*(?:[^()<>@,;:\\”.\[\]

\000-\031]+(?:(?:(?:\r\n)?[ \t])+|\Z

|(?=[\[”()<>@,;:\\”.\[\]]))|\[([^\[\]\r\\]|\\.)*\](?:(?:\r\n)?[

\t])*))*\>(?:( ?:\r\n)?[ \t])*))*)?;\s*)