David T. Lewis wrote:
> On Sun, Aug 05, 2007 at 07:33:01PM -0700, Lawson English wrote:
>   
>> John M McIntosh wrote:
>>     
>>> On Aug 4, 2007, at 5:03 PM, Lawson English wrote:
>>>
>>>       
>>>> Thanks. I found something named OSProcess, but from the 
>>>> documentation, I can't tell if it i s actualy workign on a Mac, or on 
>>>> any other OS for that matter. Nor can I figure out how to download it 
>>>> if need be since the latest version is listed as 4.2.2 while the 
>>>> SqueakMap Package Loader only lists 4.0.1, which won't load anyway 
>>>> due to some kind of error.
>>>>         
>>> The 3.8.18beta1U mac carbon VM in the 3.9 distribution folder now has 
>>> the OSProcess plugin included.
>>> You just need the latest smalltalk software to use. The instructions 
>>> should tell you "hopefully" how to quickly test it to see if it works 
>>> for you.
>>>       
>> Hmmm. For some reason, the version with 3.8.18beta specified doesnt' 
>> quite work. A different folder, labled Squeak3.9-final-7067, seemed to 
>> work better, but it may have just be "cleaner" than the other one when I 
>> started testing.
>>
>> Now that I know that it works (I can even do a few simple shell commands 
>> from the shell window, whee), I have ot figure out how to use it. Are 
>> they any existing examples I might look at for implementing I/O via pipes?
>>     
>
> Look at the class side methods in PipeableOSProcess. There are a number
> of examples there, and many of the methods have examples in the method
> comments. A PipeableOSProcess is a proxy for an external OS process that
> has its stdin/stdout/stderr pipes connected and accessible from Squeak.
>
> You can also create instances of OSPipe if you want to work with pipes
> directly, but pay attention to blocking versus non-blocking pipes, as
> you can hang up your Squeak VM by reading a blocking pipe that has no
> data available.
>
>
>   

Thanks for the pointers to the examples. Unfortunately, none of them 
seem to work. They all return either a message that the Accessor cannot 
access the system. I'm no doubt missing something.