Re: [jamming] new release of "FT Jam"

From: David Turner (david.turner_at_[hidden])
Date: 2001-06-26 16:44:46

hi again,

> For now, you'll need to assign a dummy variable with the
> call as in:
> 
>   _ignore = [ $(RULE) params ] ;
> 
> hideous, but it works..
>

Actually, a better solution would probably to define
a new rule like the following:

  ##########################################################
  #
  #  invoke VARIABLE : params1 : params2 : params3 : ....
  #
  #    a special rule used to invoke rules indirectly.
  #    $(<) must be a variable name and will be expanded
  #    to determine which rule to call
  #
  #
  rule invoke  # VARIABLE : params1 : params2 : ....
  {
     local _ignore ;

     _ignore = [ $($(1)) $(2) : $(3) : $(4) : $(5) : $(6) : $(7) : $(8) : $(9) ] ;
  }

  and a simple example would be:

    RULE = "ECHO" ;
    invoke RULE : "hello world" ;

seems a lot cleaner :-)

- David Turner