Ah... yes now I see it...

Post #74,473

1/14/03 5:14:56 PM

I like your hack... tis literal brilliance. I like to make less work out of more...

The way it worked out would be a great *trick*... if you know what I mean!

Does it add to the interpretation time? Or is it basically transparent?

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Post #74,479

by tuberculosis

1/14/03 5:30:59 PM

8/21/07 5:59:06 AM

Interpretation time

"Does it add to the interpretation time? Or is it basically transparent?"

The glue code? Its no worse than any other built-in function in CLIPS. The whole interpreter is a base parser with plugins. A bunch of the plugins are "built-ins" but that just means the default initialization code registers those plugins. The mechanism is the same regardless. A function can also register a parser function - or not. I register one that takes over until the closing bracket, pops that off the stream and then gives back control after marshalling/binding and calling FScript.

So its basically transparent. Phillipe was amused. I need to clean up the object-to-fact mapper before releasing it to the world.

I am out of the country for the duration of the Bush administration.
Please leave a message and I'll get back to you when democracy returns.

Edited by tuberculosis Aug. 21, 2007, 05:59:06 AM EDT

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Post #74,509

by deSitter

1/14/03 7:12:12 PM

Re: Interpretation time

This again sounds extremely like FORTH, with CREATE DOES> giving dynamic runtime behavior. Also, you can override a FORTH word simply by redefining it - you get a helpful "isn't unique" message. The older version will never be found in a dictionary search. If you FORGET the new definition, the old one will be uncovered. This covering I think is a really fundamental idea because it provides a determinate context. You never have to worry about scope because the entire environment is built around scope. Extended FORTH can switch contexts on the fly with VOCABULARY and DEFINITIONS. The root vocabulary is simply called FORTH. Is there an ST analogy?

-drl

Post #74,511

by tuberculosis

1/14/03 7:18:17 PM

8/21/07 6:01:00 AM

Root object

in Smalltalk is an object of type SystemDictionary named Smalltalk. So, if you want to get hold of the object that represents the String class you could do something like:

(Smalltalk at: #String) compile: 'becomeRaspberry self become: ''ppppppppppppp'''.

Or something like that.
Which would add a method becomeRaspberry to the String class.

I am out of the country for the duration of the Bush administration.
Please leave a message and I'll get back to you when democracy returns.

Edited by tuberculosis Aug. 21, 2007, 06:01:00 AM EDT

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