Re: /⍨

[Dr . Jürgen Sauermann]

Hi Hudson,

thanks, see below (SVN 1557).

On 6/2/22 4:52 PM, hud...@hudsonlacerda.com wrote:

Hi Jürgen,


Many thanks.


1) The reference to the ISO "PDF" file without the ZIP-format warning is in the preamble of doc/apl.html .

fixed.

2) ⌹
⌹ ,2 (as vector) is OK
⌹ 2 (as scalar) raises the exception
==============================================================================
Assertion failed: 0 && "Cell::init_other() called on base class"
in Function:      init_other
in file:          Cell.hh:64

Still having problems to reproduce this:

      ⌹,
0.5
      ⌹2
0.5

Does it also happen in a CLEAR WS ?

3) Still missing help for ⎕ and ⍞ — not listed by ")help TAB"
)help ⎕
)help ⍞

fixed.

4) ⎕DL cannot be stopped by ATTENTION (Control+C) ­— is it so by design?

Actually you need INTERRUPT (= double ^C within short time) and not
ATTENTION (= single ^C).

5) /⍨ now works — but not /¨ :

     (1 0 1)(0 1 1) /¨ ⊂'abc'
DOMAIN ERROR
      (1 0 1) (0 1 1)/¨ ⊂'abc'
      ^                ^
      (1 0 1)(0 1 1) /¨¨ ⊂'abc'
[INFINITE LOOP]

Alternative to /¨ (besides {⍺/⍵}¨ ):
      ,/⊃(1 0 1)(0 1 1) ⍴¨¨ ⊂'abc'
 ac bc 

fixed. I should mention that some invariants in the IBM APL2 language reference
manual are incorrect (at least my PC APL2 differs from the manual). The

      (0≠L)/R   ←→    ⊃,/L⊂R on page 188

seems to hold only if L⊂R is not empty.

(Maybe it is not without reason that IBM APL2 does not support operators along with / ).


Other issues are fixed.


Regards,
Hudson



P.S.: Is it in your TODO list support for Unicode string manipulation (like toupper(), tolower() etc. )?







----- Dr. Jürgen Sauermann <mail@jürgen-sauermann.de> escreveu:
> Hi Hudson,
> 
> thanks for reporting your issues. I believe that I fixed (most of) them 
> in *SVN 1556*.
> 
> Regarding the ISO PDF file, it is mentioned below the link in 
> README-7-more-info
> that the file needs to be unzipped.
> 
> Regarding *⌹{⍺+÷⍵}⍣1000⍨ 1* this works just fine on my machine:
> 
> *      ⌹{⍺+÷⍵}⍣1000⍨ 1**
> **0.6180339887**
> *
> If you can reproduce the fault, then please check with *gdb* (after 
> *make apl.lines*
> in directory *src* as to get better line numbers in *gdb*).
> 
> Best Regards,
> Jürgen
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