A DataSource application can be configured to map its internal namespace to a different external namespace. This can either be used to simply make it a valid object name for an external source, or to create a complex directory structure of objects.

A valid pattern contains either 0 or 1 * characters, where a * represents 0 or more characters to match, much like a filename pattern match.

`add-pattern`

Type: Function
Default: None

Add a name mapping pattern

Examples:

add-pattern *.FX /FX/*
add-pattern MSFT* /Microsoft/*
add-pattern * /*