Using calculated field to retrieve substring of another field

Question

Suppose I have a field that contain the following data:

==========================
|  Email Address         |
==========================
| Jack@wonderland.com    |
| Peter@nobodyland.com   |
| Jill@wonderland.com    |
==========================

Is there a calculated formula in SharePoint that will give me the following result? (It will help me to retrieve the sub-string from the Email Address column and give me the answer as shown in the UserName and Domain column):

===========================================================
|  Email Address         |  UserName  |      Domain       |
===========================================================
| Jack@wonderland.com    |   Jack     |   wonderland.com  |
| Peter@nobodyland.com   |   Peter    |   nobodyland.com  |
| Jill@wonderland.com    |   Jill     |   wonderland.com  |
===========================================================

Answer 1

1. Create Calculated column called "UserName" and type in this formula

   =LEFT([Email Address],INT(FIND("@",[Email Address])-1))

2. Create Calculated column called "Domain" and type in this formula

   =RIGHT([Email Address],LEN([Email Address])-INT(FIND("@",[Email Address])))

It should work.

Answer 2

It appears that there's no such functions in the list of supported functions: http://msdn.microsoft.com/en-us/library/bb862071.aspx. I can offer a workaround - you can create custom field with modified XSLT to achieve desired effect. Here's the example: http://www.intheknow.it/Default.aspx?Page=customxsltfieldrendering&NS=&AspxAutoDetectCookieSupport=1