String interpolation with fmt:message tag

Question

Is a string interpolation with an fmt:message tag possible?

Answer

The fmt:message tag has 4 attributes:

Attributes:

Name	Required	Type	Description

key	False	java.lang.String	Key of the message to be looked up from the resource bundle.
bundle	False	java.lang.String	Which resource bundle is the key to be looked up.
var	False	java.lang.String	Name of the variable to store the localized message.
scope	False	java.lang.String	The scope in which the localized message variable is to be stored.

Per default no string interpolation is allowed. But you can store the read message in a variable (var property) and change the message with a string replace before you display it.