Search a exact word in a comma delimited column value

[GoogleCodeExporter]

I want to filter an exact word in a comma delimited string(column value)

For example,

String : [CST,CS,ATS,ALU]
search input : CS

Here,

I need list of row that has only CS and should not have CST.

Could you please help me resolve this issue?

Thanks

Original issue reported on code.google.com by [email protected] on 7 Oct 2013 at 8:31