Commands file descriptors

The commands file has only one set of descriptors, and that set can be defined multiple times. The maximum sets of descriptors that can be defined in a commands file is 64. The name descriptor must be first in each set and is required. Each descriptor should be defined only once in each set. If defined more than once, only the last instance is used.

``Commands file descriptors'' lists the descriptors that can be used in a commands file to redefine or disable FMLI commands, and define new commands.

Commands file descriptors

Descriptor	Default if not defined	Type	When referenced	Default frequency of evaluation
action	no default*	command	At initialization time	Whenever referenced
help	no default	command	When user asks for help	Whenever referenced
interrupt	inherited value**	Boolean	When an action descriptor is evaluated	Whenever referenced
name	no default	string	At initialization time	Whenever referenced
oninterrupt	inherited value**	command	After action descriptor evaluation is interrupted	Whenever referenced

*

The action descriptor has no default unless name evaluates to a predefined command. In that case, it defaults to the predefined command.

**

The value of interrupt and oninterrupt in any given set of descriptors is inherited from the next higher level in a precedence hierarchy. If these descriptors have not been defined anywhere in your application, interrupt defaults to FALSE and oninterrupt defaults to `message Operation interrupted!`nop. (See ``Interrupt signal handling'' for more information.)