Re: [Jprogramming] Turning verbs to and from strings

[Björn Helgason]

   f1=: verb define
'line 1'
'line 2'
'line 3'
'line 4'
'line 5'
)

   m=: 0 : 0
'lina 1'
'lina 2'
'lina 3'
'lina 4'
'lina 5'
)
   f1
3 : 0
'line 1'
'line 2'
'line 3'
'line 4'
'line 5'
)
   m
'lina 1'
'lina 2'
'lina 3'
'lina 4'
'lina 5'

   a=.5!:5  <'f1'
   a
3 : 0
'line 1'
'line 2'
'line 3'
'line 4'
'line 5'
)

 f2=: 3 : m
   f2
3 : 0
'lina 1'
'lina 2'
'lina 3'
'lina 4'
'lina 5'
)

LF cut a
┌─────┬────────┬────────┬────────┬────────┬────────┬─┐
│3 : 0│'line 1'│'line 2'│'line 3'│'line 4'│'line 5'│)│
└─────┴────────┴────────┴────────┴────────┴────────┴─┘
LF cut m
┌────────┬────────┬────────┬────────┬────────┐
│'lina 1'│'lina 2'│'lina 3'│'lina 4'│'lina 5'│
└────────┴────────┴────────┴────────┴────────┘


2011/12/31 Blake McBride <bl...@mcbride.name>

> Greetings,
>
> More than 25 years ago I wrote an IDE for APL.  At the core what I did
> (which I don't remember how now) is that I executed something to turn
> an APL function into a character matrix.  I would then edit it with me
> IDE editing facility.  When I saved the edited function it would turn
> the edited character matrix back into a function (was that quad FX?).
>
> I also used this ability (to turn an APL function to and from a
> character matrix) to write programs that generated other functions.
> This was very nice.
>
> This leads me to my question - how can I turn a J verb into a
> character matrix, and how can I turn a character matrix back into a
> verb?
>
> Thanks!
>
> Blake McBride
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>



-- 
Björn Helgason, Verkfræðingur
Fornustekkum II
781 Hornafirði,
t-póst: gos...@gmail.com
gsm: +3546985532
twitter: @flugfiskur
http://groups.google.com/group/J-Programming


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