Lisp Propulsion Laboratory log

Paolo Amoroso's weblog. Main interests: Lisp, astronomy (Moon), space exploration (Apollo and early manned programs)

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Output destination argument of McCLIM commands

Saturday, August 21, 2004

Here is a list of the McCLIM listener commands that take an output destination argument:

• Apropos
• Background Run
• Compile File
• Compile And Load
• Load File
• Run
• Show Class Generic Functions
• Show Class Slots
• Show Class Subclasses
• Show Class Superclasses
• Show Directory
• Show Generic Function
• Show File

This feature, which is a McCLIM extension, is actually not limited to the listener and can be used in other applications. clim:define-command is extended to take the additional keyword argument :provide-output-destination-keyword. This should be t to make the defined command accept an output destination. It is nil by default because there are still some issues with completion and defaulting. A typical command definition then becomes something like:

(define-command (com-my-command :name "Name" :menu "Menu Name"
                                :command-table my-command-table
                                :provide-output-destination-keyword t)
    ((argument 'arg-presentation-type))
  ;; command body
  )