The APL2 manual (p35) says "The right operand of a dyadic operator is the
function or array to its immediate right." This is their way of saying that
operator expressions are left-associative. For example, in ∘.∘.+ the right
operand of the leftmost dot is ∘ (not ∘.+); so ∘.∘.+ is parsed as (∘.∘).+
On 23 June 2016 at 15:28, Xiao-Yong Jin wrote:
>
> > On Jun 23, 2016, at 7:07 AM, Louis Chretien wrote:
> >
> > R←{X} (A ⎕R B) Y
>
> The line on the title? It’s not really the language syntax. It’s their
> way to tell you that ⎕R is an operator that receives required left and
> right operands
Hi David,
I have added a filter for unused and not localized names in the tab
expansion, SVN 759.
I am afraid there is no portable (in the sense that the ISO
standard defines it) way to
)ERASE a name from the symbol table.
/// Jürg
Operators are evaluated from left to right in Dyalog, NARS2000, and J at least.
This seems logical:
+/{each} should parse as (+/){each}, not +(/{each}), and +/{rank}1 as
(+/){rank}1, as "tacit" operators aren't supported in GNU APL or the standard
(/{each} and /{rank}1 have no meaning).
The prob
I don't think that's true. Here's an example from IBM APL2 Workstation:
(1 2)(3 4)∘.∘.*(5 6)(7 8)
SYNTAX ERROR
(1 2)(3 4)∘.∘.*(5 6)(7 8)
^
(1 2)(3 4)(∘.∘).*(5 6)(7 8)
SYNTAX ERROR
(1 2)(3 4)(∘.∘).*(5 6)(7 8)
^
(1 2)(3 4)∘.(∘.*)(5 6)(7 8)
1 1 1
Thank you.
On Jun 28, 2016 8:09 AM, "Juergen Sauermann"
wrote:
> Hi David,
>
> I have added a filter for unused and not localized names in the tab
> expansion, *SVN 759*.
>
> I am afraid there is no portable (in the sense that the ISO standard
> defines it) way to
> )ERASE a name from the symbol
I agree that in terms of the . operator, f.g.h should parse as (f.g).h. It
seems more logical to treat ∘ as a function so ∘.∘.f parse as (∘.∘).f too, but
perhaps APL2 is doing something special with ∘. as one operator?
Here is a session with Dyalog,
⎕ML←2
⍝ Some high dimensional min
Hi,
thanks, fixed in SVN 620.
/// Jürgen
On 06/28/2016 01:23 PM, Jay Foad wrote:
The APL2 manual (p35) says "The right operand of a
dyadic operator is the function or array to its immediate
right." This is t
https://github.com/TieDyedDevil/apl-pkg
Here's news for those of you interested in the APL Package Manager:
Changes introduced by GNU APL svn r740+ broke the package manager due to my
inadvertent use of some code that was not standard-compliant but still valid in
GNU APL up through svn r739.
I
The reason Dyalog is doing weird stuff with the jot is that it uses jot to bind
left or right arguments (1 jot + = increment) AND for composition in its tacit
style. It must have very complicated parsing rules.
What I would suggest is:
All operators have a long left scope, except jot dot, which
Why does it say "but is now being )LOADed with SVN version 755"?
Shouldn't it be 761?
)load FormatFns
WARNING: this workspace was )SAVEd with SVN version 670
but is now being )LOADed with SVN version 755
Expect problems, in particular when the )SI was not clear.
In case of pro
∇
DEFN ERROR+
∇
^
⍫
No token
Presuming the 755 represents a hard-coded number that you set when the
loading is affected, perhaps the message can be changed to:
WARNING: this workspace was )SAVEd with SVN version 670
but is now being )LOADed with SVN version greater than 755
...
This would avoid any confusion.
Tha
Very nice. Thanks! This has been on my mind.
On Mon, Jun 27, 2016 at 8:35 AM, Juergen Sauermann <
juergen.sauerm...@t-online.de> wrote:
> Hi,
>
> coming back to an earlier discussion, I have optimized the cloning of
> APL values a little. *SVN 757*.
>
> /// Jürgen
>
>
Also:
$ /usr/local/bin/apl --version
BUILDTAG:
-
Project:GNU APL
Version / SVN: 1.5 / 761
Build Date: 2016-06-29 02:22:47 UTC
Build OS: Linux 3.13.0-37-generic x86_64
config.status: unknown configure options
On Tue, Jun 28, 2016 at 9:34 PM, Blake
That’s the version of the Archive.cc. See
$ sed -n '10,11p' src/buildtag
ARCHIVE_SVNINFO=`svn info Archive.cc | grep "Last Changed Rev" \
| awk -F : '{print $2;}'`
> On Jun 28, 2016, at 9:34 PM, Blake McBride wrote:
>
> Why does it say "but is now being )LOA
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