[Cuis-dev] [IMPROV] Configurable command line exception handling

[Juan Vuletich]

Hi Gerald,

Just pushed a slight variation. Your example works as intended.

Thanks,

On 1/14/2023 12:39 PM, Gerald Klix via Cuis-dev wrote:
> Hi Juan,
>
> I had a closer look at your implementation.
> It is less code and looks simpler, but it uses offsets and indexes,
> therefore I find it harder to understand.
>
> It has the following drawbacks/missing features:
>
>    1. It is not possible to pass options to scripts, they are are all
>       consumed
>       by the parsing code and then ether honored or ignored.
>    2. In order to implement #lastCommandLineArguments  properly, you
>       have to look *ahead* for a --.
>       Of course before parsing, the arguments after -- can  be stored
>       in an instance variable
>
> I am against implementing feature 1, because
> it implies once we add new options understood by Cuis' image,
> the options passed to the script would change in a rather surprising way.
>
> The attached changes set implements feature 2.
> It only adds an instance variable and about 7 lines of code.
> With it you can do something like:
>
> --- snip ---
> squeak -vm-display-null -headless Cuis6.0-5632cli2.image -d  
> "Smalltalk scriptingArguments do: [ :arg | StdIOWriteStream stdout 
> nextPutAll: arg; space]. StdIOWriteStream stdout newLine" a b c dee -d 
> "Smalltalk scriptingArguments do: [ :arg | StdIOWriteStream stdout 
> nextPutAll: arg; space]. StdIOWriteStream stdout newLine" z y x why -q 
> -- 1 2 3 -o
> --- snap ---
>
> and get the following output:
>
> --- snip ---
> a b c dee 1 2 3 -o
> z y x why 1 2 3 -o
> --- snap ---
>
> I suppose that should support all sensible uses cases.
> I also presume, that all requirements  of Dr. Geo are fulfilled.
>
>
> HTH and Best Regards,
>
> Gerald
>
>


-- 
Juan Vuletich
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