Thanks bill, this help clear things up. I posted a draft of a proof of
concept jtable helper / dsl

http://code.jsoftware.com/wiki/User:Joe_Bogner/JTable



On Mon, Nov 9, 2015 at 10:31 AM, bill lam <bbill....@gmail.com> wrote:
> Actaully it switches back if the verb is named (not necessarily
> explicit). eg.  define a script (say a1.ijs) with 3 lines
>
> cocurrent 'a1'
> smoutput coname''
> ''
>
> and try the followings.
>
>   0!:0 <'a1.ijs'
>   coname ''
>
> and start a new session
>
>
>   lod=: 0!:0
>   lod <'a1.ijs'
>   coname ''
>
>
> incidentally, load any scripts with the utility verb load
> will not switch the current locale.  Not sure where this is
> documented.
>
>
> Пн, 09 ноя 2015, Joe Bogner написал(а):
>> On Mon, Nov 9, 2015 at 9:34 AM, Raul Miller <rauldmil...@gmail.com> wrote:
>> > On Mon, Nov 9, 2015 at 8:22 AM, Joe Bogner <joebog...@gmail.com> wrote:
>> >> Thank you. I had this thought as well but couldn't get it to work. I
>> >> may not have  a full grasp on how cocurrent works
>> >>
>> >> I define st as 'switch to table locale' and sb as 'switch to base locale'
>> >>
>> >> I defined them explicitly
>> >>
>> >> My first attempt:
>> > ...
>> >> sb=: 3 : 0
>> >> cocurrent 'base'
>> >> y
>> >> )
>> >
>> > http://www.jsoftware.com/help/dictionary/dx018.htm
>> >
>> > "
>> > 18!:4 y
>> > Switch Current. Switch the current locale to y at the end of the
>> > currently executing named verb. Initially the current locale is base .
>> > "
>>
>> Thanks, I read that initially but still don't understand it,
>> specifically 'the end of the currently executing named verb'.
>>
>>    cocurrent
>> 18!:4@boxxopen
>>
>> If I type cocurrent 'base' , I would assume  cocurrent is the
>> currently executing named verb and it switched to base after the end
>> of cocurrent
>>
>> Given that understanding, why would it switch back at the end of the
>> explicit definition? Is that behavior documented somewhere?
>>
>>
>> >
>> > You either need to use ([ cocurrent bind 'base') instead of sb, or use
>> > 18!:4 in sb .
>> >
>>
>> I had forgotten about bind
>>
>> ([ cocurrent@('base'"_1)) 2
>>
>>
>> http://code.jsoftware.com/wiki/Vocabulary/quotem
>>
>> I typically use & to bind parameters. & cannot be used on cocurrent
>> because it's monadic, is that the correct interpretation?
>>
>> NB. basic monadic verb
>> add1 =: 3 : 'y+1'
>>
>> NB. no & allowed
>> (add1&3) 0
>> |domain error: add1
>>
>> NB. bind works
>>    (add1 bind 3) 100
>> 4
>>
>> NB. & works fine when defined dyadic
>>    add1d =: 4 : 'y+1'
>>    (add1 & 3) 1
>> 4
>>
>> NB. no bind on dyadic
>>    (add1d bind 3) 1
>> |domain error: add1d
>> |       (add1d bind 3)1
>>
>>
>> Is there a way to determine the valence of a tacit verb?
>>
>> My first thought was ar, but that didn't seem to help:
>>
>>    5!:1 (<'cocurrent')
>> ┌──────────────────────────────────┐
>> │┌─┬──────────────────────────────┐│
>> ││@│┌───────────────────┬────────┐││
>> ││ ││┌──┬──────────────┐│boxxopen│││
>> ││ │││!:│┌──────┬─────┐││        │││
>> ││ │││  ││┌─┬──┐│┌─┬─┐│││        │││
>> ││ │││  │││0│18│││0│4││││        │││
>> ││ │││  ││└─┴──┘│└─┴─┘│││        │││
>> ││ │││  │└──────┴─────┘││        │││
>> ││ ││└──┴──────────────┘│        │││
>> ││ │└───────────────────┴────────┘││
>> │└─┴──────────────────────────────┘│
>> └──────────────────────────────────┘
>>
>>
>> > locale handling has to do with name resolution - not just in terms of
>> > what gets resolved, but also in terms of context.
>> >
>> > Thanks,
>> >
>> > --
>> > Raul
>> > ----------------------------------------------------------------------
>> > For information about J forums see http://www.jsoftware.com/forums.htm
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>
> --
> regards,
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