It's not at all clear to me why doing this kind of thing on "one line"
is useful.
That said, this example of yours:
flag1_z_ =: 0 [ controlA_z_ =: 1 : ('flag1_z_ =: 1';'o=. u
y';'flag1_z_ =: 0';'o')
has this grammar:
name =: noun verb name =: noun conjunction noun
Which, simplifies to
name =: noun verb adverb
In other words, you are executing controlA with u defined as [ which
then simplifies to
name =: noun verb
and that's just bad grammar. A simple transformation which would make
it grammatically correct would be:
name =: verb noun
and... projecting this back into your original sentence, it would become
flag1_z_ =: ([ controlA_z_ =: 1 : ('flag1_z_ =: 1';'o=. u
y';'flag1_z_ =: 0';'o')) 0
However, since I have no idea what you are trying to accomplish, I
have no idea if this is relevant to your efforts.
FYI,
--
Raul
On Fri, Sep 13, 2013 at 1:09 PM, Pascal Jasmin <[email protected]> wrote:
> thank you. I'm still not able to combine into one line (which IIUC can be
> done with verb defines)
> flag1_z_ =: 0 [ controlA_z_ =: 1 : ('flag1_z_ =: 1';'o=. u y';'flag1_z_ =:
> 0';'o')
>
>
> btw, The dyad version define is:
> (flag1_z_ =: 0) [ controlA_z_ =: 1 : ('flag1_z_ =: 1';'o=. u y';'flag1_z_ =:
> 0';'o';':';'flag1_z_ =: 1';'o=. x u y';'flag1_z_ =: 0';'o')
>
>
>
>
> ----- Original Message -----
> From: Don Guinn <[email protected]>
> To: General forum <[email protected]>
> Cc:
> Sent: Friday, September 13, 2013 12:18:34 PM
> Subject: Re: [Jgeneral] Bug in adverb define
>
> Need to add parens.
>
> controlA_z_ =: 1 : ('flag1_z_ =: 1';'o=. u y';'flag1_z_ =: 0';'o')
>
>
> On Fri, Sep 13, 2013 at 9:18 AM, Pascal Jasmin <[email protected]>wrote:
>
>> The following in a script should work according to
>> http://www.jsoftware.com/help/dictionary/dicth.htm
>> flag1_z_ =: 0
>> controlA_z_ =: 1 : 'flag1_z_ =: 1';'o=. u y';'flag1_z_ =: 0';'o'
>>
>> It results in a syntax error script in J7. The syntax error can be
>> eliminated by changing 1 : to 3 :
>>
>> The adverb (and definition) works as a 4 line definition. Its purpose is
>> to send control flags to a verb which changes its behaviour if called with
>> the adverb. The importance of getting it on one line is that supporting
>> dyads would take a multiline definition 10 lines with the ending ), and its
>> the type of utility function that can be cloned to control2A control3A and
>> so, single line definitions are more reusable.
>>
>> The multiline version is:
>> controlA_z_ =: 1 : 0
>> flag1_z_ =: 1
>> o=. u y
>> flag1_z_ =: 0
>> o
>> )
>>
>> Ideally I'd like to be able to write a definition line such as:
>>
>> flag1_z_ =: 0 [ controlA_z_ =: 1 : 'flag1_z_ =: 1';'o=. u y';'flag1_z_ =:
>> 0';'o'
>>
>> (which does load if '1 :' changed to '3 :')
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
