Function to extract certain elements from a character array

function [user_name,domain_name] = GetUserAndDomain(email) user_name=email(1:strfind(email,'@')-1); domain_name=email(strfind(email,'.')+1:end); end

Basically if my email is [e-mail], my user_name should return 'blah', and my domain_name should return 'com'.

I think my code works fine for the user name. But for the domain name, how do i account for the fact that there might be dots within the user_name, such as [e-mail]?

[j8099]

Never mind, I figured it out!

I said A=strfind(email,'.');

domain_name=email(A(end)+1:end);

Answer 1

[Stephen23]

You could use regexp , allowing you to separate all of the username elements in one go. There is even a complete worked example in the documentation which explains how to develop the regular expression for email addresses:

http://www.mathworks.com/help/matlab/matlab_prog/regular-expressions.html

You can change the regular expression to suit the usernames that your data has, perhaps something like this:

>> A = '[e-mail]';
>> regexpi(A,'(.+?)@(.+)\.(.+)','tokens','once')
ans = 
      'blah.96'  'gmail'  'com'

Note that regexp also accepts a cell array of strings as its input, so you could parse all of the email addresses at once, using just one line of code.