Re: Need advices for creating a proprietary language

Sandy Harris wrote in message 98-03-041...
>"Mike" <mike@heliovisionsproductions.fr> wrote:
>
>>For an internal (in the company I'm working for) project, I have to
develop
>>a special simple language. . . .
>>What I need, is to create a compiler that transform simple text files in a
>>kind of P-Code that will be interpreted in the game.
>>So, I have to check the syntaxis correctness, to check if all the
functions
>>and structures are ok, and to handle the game ressources:
>
>Have a look at TCL, Tool Command Language. C code for an extensible
>interpreter, designed to save everyone time & effort building front
>ends for assorted things.




I can follow up with a recommendation for Tcl... I have built a
similar system (only instead of characters, they were processes
running as part of a telecom network, reacting to external events and
messages sent to each other. It is really a neat way of building a
fault tolerant system that can "intelligently" heal itself.)


Here are a couple of references that you might find interesting:


1. Michael Johnson's PhD. Thesis, "WavesWorld: A Testbed for
        Three Dimensional Semi-Autonomous Animated Characters". In
        addition to the (interesting) subject matter, it is quite
        amazing to see character behavior descripted as a Tcl
        script. http://wave.www.media.mit.edu/people/wave/


2. "Tcl On Mars" by David Smyth. I don't have the URL in
        front of me, but it shows how Tcl was used in one
        version of the Pathfinder flight control software, which
        was set up as a set of communicating independent agents
        using the "actor" model.


3. (gratuitous plug) Chapter 7 of "Effective Tcl/Tk
        Programming" -- coauthored by me, so hardly a subjective
        opinion -- has a pretty good outline of setting up
        applications as a set of asynchronous communicating
        agents. It's in the context of writing distributed
        client server applications, but I think that the same
        principles will apply to the application area you
        mentioned.


Hope this helps,
Mark.
--

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