An Objective C NSString category to fix common typos in email addresses. Significantly reduces signup issues and lost users.
Some examples of bad email addresses that will be corrected:
- robert@gmial.com -> robert@gmail.com
- robert@gmial.con -> robert@gmail.com
- robert@hotmail.con -> robert@hotmail.com
- robert@hoitmail.com -> robert@hotmail.com
- robert@hoitmail.con -> robert@hotmail.com
- robert@aol.con -> robert@aol.com
- robert.con@aol.con -> robert.con@aol.com
Fixes misspelled variations for Gmail, Googlemail, Hotmail, Yahoo and Ymail. More domains can be added easily using a dictionary syntax.
Note: A .con suffix will always be corrected to .com regardless of domain name.
Besides correcting the typos, it also lowercases the email address. If the email address is invalid, returns the original value.
Code sample:
NSString *badAddress = @"robert@gmial.com";
NSString *goodAddress = [badAddress stringByCorrectingEmailTypos];
Copyright © 2014 Mel Sampat
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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