Re: Filelist mode on VMS

[Terrence Branscombe <tlbranscombe@xxxxxxx>]

John E. Davis wrote::
> Terrence Branscombe <tlbranscombe@xxxxxxx> wrote:
>
> It is another example of a function that was not implemented for VMS.
> This function should be defined in src/slposdir.c in the slang source
> code.  If you provide me with a working version of listdir, then I
> will add it to a future slang release.  I suspect that something like
> lib$find_file / lib$find_file_end will be required.

That would be way beyond my pay grade.  My programming skill is limited 
to writing VBA macros for the most part.  VMS is a part-time hobby, and 
just understanding enough to get things configured properly is challenge 
enough. :^)

> In recent years,
> it appears that the VMS C run time library has adopted a number of POSIX
> functions, so you may be able to reuse the Unix code in slposdir.c
> (opendir/readdir/closedir).
>
> In the meantime, you might play with something like:
>
>    define listdir (dir)
>    {
>       variable tmp = "SYS$LOGIN:listdir.tmp";
>       variable cmd = sprintf ("dir/output=%s %s", tmp, dir);
>       () = system (cmd);
>       variable list = fgetslines (fopen(tmp,"r"));
>       list = array_map (String_Type, &strtrim, list);
>       () = remove (tmp);
>       return list;
>    }
>
> I probably have the output qualifier all wrong, and you may require
> addition qualifier to the "dir" command to get single column output.
> Hopefully the idea is clear.

I certainly like to play.  Thanks for the starter kit.

> Thanks,
> --John

Cheers,
Terry

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Terrence Branscombe

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