my @data = /(!.*?!)/g; 

##</code><code>##

Splitting data by comma as a delimiter
Data splitted is as below
!A001ST!==>!98!==>!1!==>!01/10/1999!==>!EUROPEENNE!==>!0!==>!EUR!==>!6!==>!7!==>!0!==>!98!==>!1!
Data splitted is as below
!A001ST!==>!AD,CD!==>!1!==>!20/05/2004!==>!ANDORRA!==>!0!==>!EUR,USD!==>!6!==>!7!==>!0!==>!AD!==>!1!