Henry, You may find this interesting. I was just experimenting with your  ds  
in this script:

load 'debug/dissect'
a=: 0 : 0
a is a
​b is not a
c is a or not a
)
a
b=: <;._2 a
b
f=: 13 :'x&(+./@E.)&>y'
f
'is a' f b
'not a' f b
g=: 13 :'+./"1 x E."1 > y'
g
'is a' g b
'not a' g b
ds '(''is a''&(+./@E.)&>)b'
ds '(+./"1 ''is a'' E."1 > )b'

Linda

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Henry Rich
Sent: Saturday, December 29, 2012 11:17 AM
To: [email protected]
Subject: Re: [Jprogramming] Announcing: dissect, the 2-D J sentence analyzer; 
and request for a collaborator

Yes, I meant J7/GTK.  As I understand it, grid requires GTK (if not, I could 
try to do what's needed to run grid without GTK).

All praise should go to the authors of grid and gtkwd, which made the port easy.

Henry Rich

On 12/29/2012 11:10 AM, bob therriault wrote:
> Hi Henry,
>
> It fails in JHS on a Mac but I am guessing that you were referring to  J 7 in 
>  GTK. Very impressive that you were able to move it into GTK so quickly.
>
>     9!:14 ''
> j701/2011-01-10/11:25
>
>     ds '20 5 0(*`%/"2@(,: (%:@* -.))@((,: , 1"1) % +/@[))10'
> |value error: wd
> |       wd DISSECT
>
>
> Cheers, bob
>
> On 2012-12-29, at 7:30 AM, Henry Rich wrote:
>
>> ds '20 5 0(*`%/"2@(,: (%:@* -.))@((,: , 1"1) % +/@[))10'
>
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>
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