[Info-vax] SET DEFAULT iterative logical name translation

[alanfe...@gmail.com]

On Monday, October 25, 2021 at 3:47:23 PM UTC-4, Dave Froble wrote:
> On 10/25/2021 2:28 PM, alanfe... at gmail.com wrote: 
> 
> > But it does a lot more than that. SET DEFAULT had 2 or 3 silly bugs that I figured wouldn't take long to fix.
> What bugs? I've never seen any.

I posted on earlier in the thread. I think it's even mentioned in the docs once, but I don't recall where and doubt I can find it. 

Here is my summary of them:

The DCL program SET DEFAULT has two problems with nested logical
names: 


 1.) If the first translation has a trailing colon and there is no
explicit directory-spec in the second translation, SYS$DISK is changed
to the 1st translation and the directory portion is not changed. The
"actual" current directory remains hidden in SYS$DISK. 

[   I assume this mean if you specify <LNM>:[directory]   ]

 2.) If the 1st translation has no trailing colon, then only the
directory portion of the default is changed! This can leave SYS$DISK
incorrect thereby leaving the default incorrect. 

[This is the example posted by someone long ago which I put in one of my first posts in this thread.]

Additionally, in certain circumstances, SET DEFAULT returns an error
but still changes your process to a bad default. 

[Unfortunately, I don't recall any examples of this.]



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> David Froble Tel: 724-529-0450 
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AEF