Re: canceling ∇-edit mode

[Dr . Jürgen Sauermann]

Hi Otto,

thanks, fixed in *SVN 1255*.

Best Regards,
Jürgen


On 4/8/20 5:04 PM, Otto Diesenbacher-Reinmüller wrote:
> Hi Jürgen,
>
> many thanks for that super-quick fix!
>
> I can confirm, works fine.
>
> Just a minor bug remains: calling [→] for a new function results in an
> exception, see below.
>
> br & many thanks - Otto
>
> )clear
> CLEAR WS
>       )fns
>       ∇test
> [1] ⍝ a teste...
> [2] [→]
>
> ==============================================================================
> Assertion failed: fun
> in Function:      execute_escape
> in file:          Nabla.cc:885
>
> Call stack:
>
> ----------------------------------------
> -- Stack trace at Nabla.cc:885
> ----------------------------------------
> 0xA @@@@
> 0xA  @@@@
> 0xA   @@@@
> 0xA    @@@@
> 0xA     @@@@
> 0xA      @@@@
> 0xA       @@@@
> 0xA        @@@@
> ========================================
>
> SI stack:
>
>
> ==============================================================================
> *** immediate_execution() caught other exception ***
>
> From:Dr . Jürgen Sauermann
> Subject:Re: canceling ∇-edit mode
> Date:Wed, 8 Apr 2020 13:38:24 +0200
>
> Hi Otto,
>
> thanks for reporting this. I guess I simply missed that case.
>
> Fxed in *SVN 1254*.
>
> Best Regards,
> Jürgen Sauermann
>
> On Wed, Apr 8, 2020 at 12:13 PM Otto Diesenbacher-Reinmüller
> <address@hidden <mailto:address@hidden>> wrote:
>
>     Hi APLers,
>
>     first let me thank, for that wonderful piece of software!
>
>     Using the ∇-editor I found some inconsistencies, perhaps a bug or am I
>     using ∇ wrong? Reference APL2 docu and Nabla.cc:
>     "  // we expect one of the following:
>        //
>        // [⎕] [n⎕] [⎕m] [n⎕m] [⎕n-m]                    (show)
>        //     [n∆] [∆m] [n∆m] [∆n-m] [∆n1 n2 ...]       (delete)
>        // [→]                                           (escape)
>        // [n]                                           (goto)
>        // text                                          (override text)"
>
>
>     I create a new function:
>           ∇z←a plus b
>     [1] z←a+b
>     [2] ∇
>
>     afterwards I start changing the function, but want to cancel the
>     changes. Entering [→] won't let me leave the ∇-mode. I have to end it
>     with '∇'? BUT then, only the header remains - whole function body is
>     no longer available:
>
>           ∇plus
>     [2] [⎕]
>         ∇
>     [0]   z←a plus b
>     [1]   z←a+b
>         ∇
>     [2] [0.5] ⍝ a comment
>     [0.6] [→]                    ⍝ I am not leaving the ∇-mode?
>     [0.6] ∇                      ⍝ I have to leave with ∇?
>           ∇plus[⎕]∇
>         ∇
>     [0]   z←a plus b
>         ∇
>           ⎕CR 'plus'
>     ┌→─────────┐
>     ↓z←a plus b│
>     └──────────┘
>
>     Is this a bug, or is there another way to leave the ∇-mode without
>     saving last changes?
>
>     br & many thanks - Otto
>