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Regex for extracting e-mail addresses


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I'm not sure of the exact rules, but I think each email address must:

  • Not contain spaces
  • Contain an @
  • Contain a period with an ending (ie: .com, .org, .edu, etc)

So you could use something simple like this:


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47 minutes ago, FrancescoDiMuro said:


Why don't you show us what you tried?

I could do that, of course, but how would I (or you) know of the regex is any good?  Even if it manages to extract *some* e-mail addresses would not be proof that it is the proper regex for extracting *all* e-mail addresses.  The whole point of using the correct regular expression is to avoid using an expression that works only in test cases.  Are you saying that you'll tell me the correct answer only after I've given you some likely incorrect attempts? :-)

Edited by leuce
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To kill this bird, here's the optimized regex J. Friedl published in his first edition of "Mastering Regular Expressions".  Just like he said: Enjoy!


This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
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PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

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SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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