Comments on: Email Validation using Regular Expressions (the Right Way) http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/ Where Les is More Sun, 29 Aug 2010 01:30:54 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Validating Email Address in Web Forms – The Hazards of Complexity : Ben Gross, PhD http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-2/#comment-709 Validating Email Address in Web Forms – The Hazards of Complexity : Ben Gross, PhD Sun, 29 Aug 2010 01:30:54 +0000 http://www.leshazlewood.com/?p=5#comment-709 [...] or port one of the PHP versions to JavaScript. Les Hazlewood released a Java-based application for Email Validation using Regular Expressions (the Right Way) and Casey Connor of Boxbe updated Hazlewood’s EmailAddress.java [...] [...] or port one of the PHP versions to JavaScript. Les Hazlewood released a Java-based application for Email Validation using Regular Expressions (the Right Way) and Casey Connor of Boxbe updated Hazlewood’s EmailAddress.java [...]

]]> By: soft-7.com http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-2/#comment-634 soft-7.com Sat, 19 Jun 2010 15:28:29 +0000 http://www.leshazlewood.com/?p=5#comment-634 I am happy to find much useful information in the post, writing sequence is awesome, I always look for quality content, thanks for sharing. I am happy to find much useful information in the post, writing sequence is awesome, I always look for quality content, thanks for sharing.

]]> By: PONTIFEX http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-2/#comment-66 PONTIFEX Sat, 05 Jun 2010 17:21:09 +0000 http://www.leshazlewood.com/?p=5#comment-66 MARKETING-CALLS@NO-MEDIA-OR-RHINOMARKETING-CALLSCONTROLALTDELETE.CO.ZA evaluates fine. MARKETING-CALLS@NO-MEDIA-OR-RHINOMARKETING-CALLSCONTROLALT.DELETENO-MEDIA-OR-RHINOMARKETING-CALLSCONTROLALTDELETE.CO.ZA even faster ;) the problem lies with the LocalPart and its length. Not with the domain. I believe the LocalPart can be broken in parts+domain and if the part evaluate fine, so will the whole and performance of the evaluation will increase. Not sure what the criteria would be for breaking the LocalPart in chunks. NO-MEDIA-OR-RHINOMARKETING-CALLS@CONTROLALTDELETE.CO.ZA could be split in NO-MEDIA-OR-RHINO@CONTROLALTDELETE.CO.ZA and MARKETING-CALLS@CONTROLALTDELETE.CO.ZA if both evaluate fine than the whole is fine. I guess where to put the split is not trivial with the more exotic LocalParts. MARKETING-CALLS@NO-MEDIA-OR-RHINOMARKETING-CALLSCONTROLALTDELETE.CO.ZA

evaluates fine.

MARKETING-CALLS@NO-MEDIA-OR-RHINOMARKETING-CALLSCONTROLALT.DELETENO-MEDIA-OR-RHINOMARKETING-CALLSCONTROLALTDELETE.CO.ZA

even faster ;)

the problem lies with the LocalPart and its length. Not with the domain.

I believe the LocalPart can be broken in parts+domain and if the part evaluate fine, so will the whole and performance of the evaluation will increase.

Not sure what the criteria would be for breaking the LocalPart in chunks.

NO-MEDIA-OR-RHINOMARKETING-CALLS@CONTROLALTDELETE.CO.ZA

could be split in
NO-MEDIA-OR-RHINO@CONTROLALTDELETE.CO.ZA
and
MARKETING-CALLS@CONTROLALTDELETE.CO.ZA

if both evaluate fine than the whole is fine.

I guess where to put the split is not trivial with the more exotic LocalParts.

]]> By: PONTIFEX http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-1/#comment-65 PONTIFEX Sat, 05 Jun 2010 16:59:29 +0000 http://www.leshazlewood.com/?p=5#comment-65 Ha! Got it. Ha! Got it.

]]> By: PONTIFEX http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-1/#comment-64 PONTIFEX Sat, 05 Jun 2010 12:58:29 +0000 http://www.leshazlewood.com/?p=5#comment-64 Here's another one ;-) NO-MEDIA-OR-RHINOMARKETING-CALLS@CONTROLALTDELETE.CO.ZA Enjoy. Here’s another one ;-)
NO-MEDIA-OR-RHINOMARKETING-CALLS@CONTROLALTDELETE.CO.ZA

Enjoy.

]]> By: PONTIFEX http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-1/#comment-63 PONTIFEX Sat, 05 Jun 2010 12:23:10 +0000 http://www.leshazlewood.com/?p=5#comment-63 The following email addresses take an extremely long time to be evaluated: protectionandsecurityhqrm2@saps.org nienetyninecarolinestreet@yahoo.fr Any idea why? The following email addresses take an extremely long time to be evaluated:

protectionandsecurityhqrm2@saps.org
nienetyninecarolinestreet@yahoo.fr

Any idea why?

]]> By: Балашихи http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-1/#comment-58 Балашихи Thu, 29 Apr 2010 18:26:32 +0000 http://www.leshazlewood.com/?p=5#comment-58 I agree with the author, I am very interested. Also on http://www.ibalashiha.ru. Thank you and Good day, everybody! I agree with the author, I am very interested. Also on http://www.ibalashiha.ru. Thank you and Good day, everybody!

]]> By: Cherouvim http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-1/#comment-57 Cherouvim Mon, 26 Apr 2010 12:55:49 +0000 http://www.leshazlewood.com/?p=5#comment-57 Correction: changing ALLOW_DOMAIN_LITERALS does not solve this. Sorry for the false alert. Correction: changing ALLOW_DOMAIN_LITERALS does not solve this. Sorry for the false alert.

]]> By: Cherouvim http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-1/#comment-56 Cherouvim Mon, 26 Apr 2010 12:52:49 +0000 http://www.leshazlewood.com/?p=5#comment-56 After running this in production for 2.5 years I validate @Puk and @Horia's problem. The regex "freezes" for input "weneedetedoucaccionthatwillsavetheland". I found out that changing ALLOW_DOMAIN_LITERALS to false solves the problem. After running this in production for 2.5 years I validate @Puk and @Horia’s problem. The regex “freezes” for input “weneedetedoucaccionthatwillsavetheland”.

I found out that changing ALLOW_DOMAIN_LITERALS to false solves the problem.

]]> By: Les http://leshazlewood.com/2006/02/04/java-email-address-validation-the-right-way-regular-expression/comment-page-1/#comment-55 Les Wed, 24 Feb 2010 14:57:37 +0000 http://www.leshazlewood.com/?p=5#comment-55 @Phil It doesn't validate as accurately as the one shown in this blog. It does cursory validation only. Regards, Les @Phil

It doesn’t validate as accurately as the one shown in this blog. It does cursory validation only.

Regards,

Les

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