process_value() - give a value from a described function call

mixed process_value( string calldescription );

Get  the  replacement  of  one syntactic pattern. The pattern is on the
form:

       "function[:filename][|arg1|arg2....|argN]"

The returned value can be of any type.

Note that both object and arguments are marked optional with the brack‐
ets and that the brackets are not included in the actual pattern.

process_string(3)

This is usually used to support 'value by function call' in the mudlib.
It is wise to set the  effuserid  of  the  object  to  0  before  using
process_value  as  any function in any object can be called with almost
any arguments.