>Im doing some server side validation and Im trying to make sure the '@' and
the '.' is
> in there. I have played with a variety of things and cant get it to work.
I don't know about using a RegEX for this, but I've done it with normal
string operations. The following script verifies that:
1) The email string is not empty
2) A "@" exists once and only once
3) At least one "." follows the "@", and the "." does not come at the very
end of the string
I wrote this a long time ago, so there may be a few holes in it.
<!--- strEmail contains the entered email address --->
<!--- booEmailValid is TRUE if it is a valid address --->
<CFSET booEmailValid = "True">
<!--- test the length --->
<CFIF NOT Len(strEmail)>
<CFSET booEmailValid = "False">
<CFELSE>
<!--- make sure only one '@' symbol exists, and that a "." follows
it --->
<CFSET intPosOfAt = Find("@", strEmail)>
<CFSET intPosOfPer = Find(".", strEmail, intPosOfAt + 1)>
<!--- make sure a "@" exists --->
<CFIF intPosOfAt LTE 1>
<CFSET booEmailValid = "False">
<!--- make sure only 1 "@" exists --->
<CFELSEIF Find("@", strEmail, intPosOfAt + 1)>
<CFSET booEmailValid = "False">
<CFELSEIF intPosOfAt EQ Len(strEmail)>
<CFSET booEmailValid = "False">
<CFELSEIF Find("@", strEmail, intPosOfAt + 1)>
<!--- more than 1 '@', so this is invalid --->
<CFSET booEmailValid = "False">
<CFELSEIF (intPosOfPer EQ 0) OR (intPosOfPer EQ Len(strEmail)>
<CFSET booEmailValid = "False">
</CFIF>
</CFIF>
<CFIF booEmailValid>
<!--- address is OK --->
<CFELSE>
<!--- address is not OK --->
</CFIF>
Hope this helps,
Seth Petry-Johnson
Argo Enterprise and Associates
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