a good source is pages 354 ff in the IBM language reference manual:
http://www.ibm.com/downloads/cas/ZOKMYKOY
On 3/7/21 1:58 AM, Russtopia wrote:
Hi, thank you. Another list watcher had also replied to me that this is likely the issue. I will study the topic of )SI so I better understand how this pending state works!
-Russ
On Sat, 6 Mar 2021 at 11:07, Dr. Jürgen Sauermann <mail@jürgen-sauermann.de> wrote:
Hi Russ,
after the RANK ERROR the lambda is pending and its local
variables including ⍺) are held by the )SI stack:
{⍺{⍺[⍵;]}¨⍳≢⍵}⍨(3 4⍴⍳12)
RANK ERROR
λ1[1] λ←⍺ λ1¨⍳≢⍵
^ ^
⍺
1 2 3 4
5 6 7 8
9 10 11 12
)SI
λ1[1]
⋆
Use → or )SI to clear the )SI entry:
→
⍺
VALUE ERROR
⍺
^
Best Regards,
Jürgen
On 3/6/21 6:21 PM, Russtopia wrote:
It is expected that parsing errors can result in 'free' ⍺,⍵ variables in the workspace (outside of any lambda), and that they do not show up in )vars and cannot be deleted short of a )clear?
In a new, clear GNU APL session:
{(⊂⍺){⍺[⍵;]}¨⍳≢⍵}⍨(3 4⍴⍳12)
1 2 3 4 5 6 7 8 9 10 11 12
⍺
VALUE ERROR
⍺
^
⍵
VALUE ERROR
⍵
^
⍝⍝ As expected...
{⍺{⍺[⍵;]}¨⍳≢⍵}⍨(3 4⍴⍳12)
RANK ERROR
λ1[1] λ←⍺ λ1¨⍳≢⍵
^ ^
⍺
1 2 3 4
5 6 7 8
9 10 11 12
⍵
1 2 3 4
5 6 7 8
9 10 11 12
)erase '⍵'
NOT ERASED: '⍵'
)erase '⍺'
NOT ERASED: '⍺'
⎕ex '⍺'
0
⍺
1 2 3 4
5 6 7 8
9 10 11 12
)vars
)clear
CLEAR WS
⍺
VALUE ERROR
⍺
^
