Extract email addresses from text
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Hello everyone!
Does anyone have a script (or know how to create one) that extracts email addresses from a text string?
Thanks in advance! Gustav
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Steven Lord
2017년 6월 9일
It's likely more complicated than you think. See for example this Microsoft blog and this Stack Overflow question. One of the answers on the Stack Overflow page links to a (five year old) page giving a regular expression that I suspect you could use with the regular expression functionality in MATLAB.
답변 (2개)
Stephen23
2017년 6월 8일
편집: Stephen23
2021년 6월 2일
email = '[a-z_]+@[a-z]+\.(com|net)';
and adapt it to allow any domain, or whatever other requirements you have:
rgx = '[a-z0-9_]+@[a-z0-9]+(\.[a-z0-9]+)+';
C = regexpi(txt,rgx,'match');
For a slightly stricter version, you can find many regular expressions on the internet, e.g.:
rgx = '[a-z0-9._%+-]+@[a-z0-9-]+(\.[a-z0-9-]+)+'
While this simple regular expression works for simple email adresses, it is worth noting that the complete rules for checking valid email adresses are not trivial to implement with a regular expression:
A common mistake (including by this answer) is to exclude non-latin characters.
oliver
2019년 2월 15일
편집: oliver
2019년 2월 15일
I think the above examples will miss quite a lot of emails, like all those containing a capital letter or things like: Peter.O'Toole@xyz.com. So my suggestion would be something like:
reg='[a-zA-Z0-9._%''+-]+@([a-zA-Z0-9._-])+\.([a-zA-Z]{2,4})';
Although with the wide variety of new TLDs nowadays, limiting the last character group to 2-4 letters may be obsolete (depending on your needs).
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Daniele Lupo
2021년 6월 2일
This regexp validates an invalid mail with consecutive dots, like "my.email@email...com".
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