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Forum to discuss writing script in Architect plugins for SalesLogix & general SalesLogix customization topics (for Windows client only). View the code of conduct for posting guidelines.
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E-Mail Validation
Posted: 02 Feb 07 10:21 AM
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fiogf49gjkf0d Everyone, I am using the pattern matching suggested in the artical on SLXDeveloper.. However within the code I am trying to understand the actual pattern.. Here is the code
+++++++++ CODE +++++++++++
' check the syntax of an email address (TRUE/FALSE)
Function CheckEmailAddress(strEMail)
Dim objRegExp, iMatches, sPattern
' search pattern of valid email address:
' valid characters are: a-z, 0-9, ., -, _
' only one @-sign is allowed; minimum is one dot after @-sign, number of
' characters after last dot is 2 chars, maximimum is 4 chars
sPattern = "^[\w\.\-]+@([\w\-]+\.)*[\w\-]{2,63}\.[a-zA-Z]{2,4}$"
' leave function and return false when parameter is empty
If len(trim(StrEMail)) = 0 Then
CheckEmailAddress = False
Exit Function
End If
' generate new regular expression
Set objRegExp = New RegExp
objRegExp.Pattern = sPattern
objRegExp.IgnoreCase = True
Set iMatches = objRegExp.Execute(strEMail)
If iMatches.Count = 1 Then
CheckEmailAddress = True
Else
CheckEmailAddress = False
End If
Set objRegExp = Nothing
End Function
++++++++ CODE ++++++++++++
My question is .. which part of the "Pattern" is responsible for the underscore charater being viewed as acceptable
Thanks for the help
Rich |
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Re: E-Mail Validation
Posted: 02 Feb 07 10:39 AM
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fiogf49gjkf0d In this type of regexp, the "\w" represents a "word" character, which is alphanumeric plus underscore.
Just to break it down:
^ = from the beginning of the string
[\w\.\-]+ = match any "word" character, period, or dash one or more times
@ = match the "@" character
([\w\-]+\.)* = match one or more "word" characters or dashes, followed by a period, any number of times (including none at all)
[\w\-]{2,63} = match from two to 63 "word" characters or dashs
\. = match a period
[a-zA-Z]{2,4} = match 2 to 4 alphabetic characters
$ = and the string should end immediately |
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Re: E-Mail Validation
Posted: 02 Feb 07 10:44 AM
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fiogf49gjkf0d Thanks Trevor.. Just wondering why the Underscore would be failing then... |
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Re: E-Mail Validation
Posted: 02 Feb 07 10:47 AM
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fiogf49gjkf0d What precisely is failing (you can, of course, change the alphanumeric characters for privacy reasons)? I'd need to see a specific example to know for sure. Of course, it's always possible there's a bug in the regexp parser. |
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Re: E-Mail Validation
Posted: 02 Feb 07 11:26 AM
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fiogf49gjkf0d Ok your response prompted me to check further.. the user had cut and pasted the e-mail address and it contained a space at the end of the string. that was what was cauing it to fail...
Amazing.. I actually heard a great comment... another support person told me....
"Application was working perfectly and then the user did something magical.. and now we get this error...!!"
Thanks for the help all
Rich |
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Re: E-Mail Validation
Posted: 02 Feb 07 11:27 AM
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fiogf49gjkf0d Heh. Glad you figured it out. Good luck with your users. 
By the way, presumably you're going to modify your code to trim the string, right? |
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