map=: 3 : 0
 (9!:6 '') map y
:
 b=. (i.->./t) </ t=. +/\ (=/\''''~:y) * 1 _1 0 {~ '()' i. y
 y , (2 #.\"(1) 0,.b) { ' ',6 8 10{x
)

f=: [: (#~ (0 ~: 1&{"1))@; <@(0&{ ,. 1&{ ([EMAIL PROTECTED] ,. (] +//. ["0) ,. 
[ * [EMAIL PROTECTED]) 2&}.)"1

   map 5!:5 <'f'
[: (#~ (0 ~: 1&{"1))@; <@(0&{ ,. 1&{ ([EMAIL PROTECTED] ,. (] +//. ["0) ,. [ * 
[EMAIL PROTECTED]) 2&}.)"1
                                              └──────────┘                    
       └──────────┘                  └───────────────────────────────┘        
   └───────────────┘     └─────────────────────────────────────────────────┘  

   map ' ~:/\ @ (''())))'' = ])'
 ~:/\ @ ('())))' = ])
        └───────────┘

   map 5!:5 <'assert'
0 0"_ $ 13!:8^:((0: e. ])`(12"_))
                └───────┘ └────┘ 
               └────────────────┘
   map 5!:6 <'assert'
(0 0"_) $ ((13!:8)^:(((0:) e. ])`(12"_)))
                      └──┘               
                     └─────────┘ └────┘  
           └─────┘  └──────────────────┘ 
└─────┘   └─────────────────────────────┘



----- Original Message -----
From: Raul Miller <[EMAIL PROTECTED]>
Date: Wednesday, July 30, 2008 9:32
Subject: Re: [Jgeneral] tracing tacit definition execution
To: General forum <[email protected]>

> On 7/30/08, Roger Hui <[EMAIL PROTECTED]> wrote:
> > map=: 3 : 0
> >  (9!:6 '') map y
> > :
> >  b=. (i.->./t) </ t=. +/\1 _1 0 {~ '()' i. y
> >  y , (2 #.\"(1) 0,.b) { ' ',6 8 10{x
> > )
> 
> This is very nice, however:
>    map 'b=. (i.->./t) </ t=. +/\1 _1 0 {~ ''()'' i. y'
> b=. (i.->./t) </ t=. +/\1 _1 0 {~ '()' i. y
>     
> └───────┘                      └┘
> 
> And parenthesis within quotes can be unbalanced and
> can appear between balanced parenthesis.
> 
> Quoted parenthesis could be eliminated by replacing '()' i. with
> something like ('()'&i. >. 2 * ~:/\@:=&'''')
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