[FreeVMS] DCL

[Renee]

Unfortunately I have not had any experience with parsing, I did drivers. Of
note DCL will be the item which will give it a VMS feel. Since it is the UI,
It'll be worth some attention.
Renee

-----Original Message-----
From: FreeVMS [mailto:freevms-bounces at rayleigh.systella.fr] On Behalf Of
remi.chateauneu at gmail.com
Sent: Monday, June 17, 2013 5:56 PM
To: FreeVMS mailing list
Subject: Re: [FreeVMS] DCL

Le 17.06.2013 22:42, BERTRAND Joël a écrit :
> Renee a écrit :
>> Has anyone considered DCL or is it too early in the process?
>
> To early in the process. We need to obtain a running kernel with some 
> IO capabilities before trying to wrtie a shell.

Indeed. On the other hand it might be possible to write the highest level
part of a DCL interpreter:
* Commands parsing (Options etc...)
* Execution of a commands file.
... etc ...

This is not a small part of the code and could probably be tested on a
Unix-like environment. This would save time and would deliver "something to
show" : This is important for motivation.

This might be also true for tools such as CDD (Common Data Dictionary,
http://h71000.www7.hp.com/commercial/c/docs/5492p036.html ). In itself, this
is a very convenient tool which can be used with or without OpenVMS running
it. For example, the parsing of CDD input files can probably be done
independently.

Also, some part of Record Management Services (
http://en.wikipedia.org/wiki/Record_Management_Services ) could be written
(And used) independently of OpenVMS. At least prototyped.

Remi

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