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From: | Blake McBride |
Subject: | Re: [Bug-apl] )COPY should not copy ⎕PW |
Date: | Wed, 2 Jul 2014 08:55:27 -0500 |
Hi,
I have changed the code so that ⎕PW is not copied when no objects are specified
in the )COPY command, SVN
As much as I like IBM APL2 compatibility there is a limit to it when it begins
to make no sense anymore.
For example if I would say:
)COPY some_WS A B ⎕PW
then IBM APL2 would copy A and B but not ⎕PW. This is rather counter-intuitive and
I take the freedom to copy ⎕PW in GNU APL even though IBM APL2 would not.
When it comes to commands, the ISO standard explicitly leaves a lot of freedom
to their implementation.
/// Jürgen
On 07/02/2014 05:01 AM, Blake McBride wrote:
As I've stated before, I am not smart enough to understand that spec. IBM's language manual is readable, and it is clear about how it works. Also, I just tested IBM APL 2. It works as I describe.
On Tue, Jul 1, 2014 at 9:48 PM, Elias Mårtenson <address@hidden> wrote:
The standard spec is not entirely clear on this, but the way I read it suggests that everything it supposed to be copied.
Regards,Elias
On 2 July 2014 09:58, Blake McBride <address@hidden> wrote:
According to the IBM APL2 Programming Language Reference (page 423), the )COPY command should not copy ⎕PW. The manual states: "The only system objects that can be copied are ⎕CT, ⎕FC, ⎕IO, ⎕LX, ⎕PP, ⎕PR, and ⎕RL.
Current GNU APL:
)CLEARCLEAR WS⎕PW←80)save ws12014-07-01 20:57:00 (GMT-5)⎕PW←132)COPY ws1SAVED 2014-07-02 -4:57:00 (GMT-5)⎕PW80
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