Validating Email Address in Peoplecode

We have a number of pages in PeopleSoft, where user/admin is free to enter email addresses. How to validate if a value entered in a PeopleSoft field is a valid email address?

In general, how does an email id look like? It will have few characters followed by @ symbol followed by few characters and then a .(dot) symbol followed by few more characters. So, we have to validate the presence of these.

For example, if &email_addr is a variable which contains the string entered in email address field and needs to be validated then try the below code:

&AT = Find("@", &email_addr);

&DOT = Find(".", &email_addr);

If ALL(%AT,&DOT) Then

/* Validation Success */

Else

/* Validation Fail*/

/* Issue Error message */

End-if;

Additionally we could also perform checks to ensure that:

• the position of @ is not the first character
• .(dot) is not the last character.
• @ is not repeated else where in the string
• Dot is not repeated else where in the string

This can be done by using instr, substr and len functions.