Coming to this a bit late but thought that the joinstring verb from
the strings script deserves a mention here:
   require 'strings'   NB. not needed in J7
   joinstring ;:'alpha bravo charlie'
alphabravocharlie
   ' ' joinstring ;:'alpha bravo charlie'
alpha bravo charlie
   '|' joinstring ;:'alpha bravo charlie'
alpha|bravo|charlie
   '","' joinstring ;:'alpha bravo charlie'
alpha","bravo","charlie
   joinstring
''&$: :(#@[ }. <@[ ;@,. ])

On Tue, Jan 3, 2012 at 4:10 PM, Ian Clark <earthspo...@gmail.com> wrote:
> Warming to the theme, this gets us close...
>
>   5!:6 <'Z'
> <;._1 ' alpha bravo charlie'
>
> Apart from its curiosity value, it has problems. For a start it's no
> faster than ;:inv . Plus it takes a pronoun, not a noun, although you
> can get away with using 'y' in an explicit definition:
>
>   foo=: 3 : '8 }. }: 5!:6 <''y'''
>   foo Z
> alpha bravo charlie
>
>
> On Tue, Jan 3, 2012 at 1:47 AM, Linda Alvord <lindaalv...@verizon.net> wrote:
>> The example here replaces the space between words with |
>>
>> Z=: ;:'alpha bravo charlie'
>>   Z
>> ┌─────┬─────┬───────┐
>> │alpha│bravo│charlie│
>> └─────┴─────┴───────┘
>>   b2o=: [:}. [: ; ' ' ,&.> ]
>>   b2o
>> [: }. [: ; ' ' ,&.> ]
>>
>>  $b2o Z
>> alpha bravo charlie
>>   $b2o Z
>> 19
>>   _1 _1}.":Z
>> ┌─────┬─────┬───────
>> │alpha│bravo│charlie
>>
>>  ,1 1}._1 _1}.":Z
>> alpha│bravo│charlie
>>
>>   $,1 1}._1 _1}.":Z
>>
>> This doesn't remove the  |  between words.  However it is interesting 
>> because it illustrates how the boxes are constructed!
>>
>> Linda
>>
>> -----Original Message-----
>> From: programming-boun...@jsoftware.com 
>> [mailto:programming-boun...@jsoftware.com] On Behalf Of Raul Miller
>> Sent: Monday, January 02, 2012 11:26 AM
>> To: Programming forum
>> Subject: Re: [Jprogramming] Linking boxed strings with intervening spaces
>>
>> The initial transcript should have been:
>>
>>   Z=: ;:'alpha bravo charlie'
>>
>>   ;:inv Z
>> alpha bravo charlie
>>
>>   }.;' ';"1,.Z
>> alpha bravo charlie
>>
>>   9!:7]11#' '
>>
>>   ,1 1}._1 _1}.":Z
>> alpha bravo charlie
>>
>> My gmail induced formatting errors are seriously making me reluctant
>> to use email.
>>
>> --
>> Raul
>>
>> On Mon, Jan 2, 2012 at 11:21 AM, Raul Miller <rauldmil...@gmail.com> wrote:
>>>   Z=: ;:'alpha bravo charlie'
>>>    ;:inv Zalpha bravo charlie   }.;' ';"1,.Z
>>> alpha bravo charlie
>>>   9!:7]11#' '
>>>   ,1 1}._1 _1}.":Z
>>> alpha bravo charlie
>>>
>>> I think ;:inv is the closest you are going to get to a single
>>> primitive version.  There are probably too many worthwhile
>>> possibilities for alternatives (newlines should terminate, commas
>>> should separate, bullets should prefix, ...) for other the
>>> alternatives to be single-primitive
>>>
>>> That said, I do wish that L: would turn constants into verbs the same
>>> way that "_ does:
>>>
>>>   ;}.,', ';"1 ,.Z
>>> alpha, bravo, charlie
>>>   ;}.,(,.~ 1 |.!.(<' and ') ', '"_ L:0) Z
>>> alpha, bravo and charlie
>>>
>>>
>>> --
>>> Raul
>>>
>>> On Mon, Jan 2, 2012 at 10:35 AM, Ian Clark <earthspo...@gmail.com> wrote:
>>>> Suppose z is boxed strings, eg  z=: ;: 'alpha bravo charlie'
>>>>
>>>> I half-recall there's a neater (single-primitive) way to recover the
>>>> string 'alpha bravo charlie' from z than:
>>>>
>>>>   b2o=: [: }. [: ; ' ' ,&.> ]
>>>>   b2o z
>>>> alpha bravo charlie
>>>>
>>>> but I've forgotten what it is and can't seem to find it in Voc or Dic.
>>>>
>>>> On the page for "Raze" (;) the Dictionary says archly:
>>>>   The fit conjunction (;!.f) provides fill specified by the atom f
>>>> but AFAICS (;!.' ')z is the same as ;z , viz: 'alphabravocharlie' .
>>>>
>>>> Nor incidentally is (;) listed as such on the page for "Fit" (!.) .
>>>>
>>>> I observe however that:
>>>>   ;:inv z
>>>> alpha bravo charlie
>>>>
>>>> But what's in my mind is a way of interleaving some other letter, or 2
>>>> spaces, or comma-space, etc.
>>>>
>>>> BTW timer (6!:2) tells me that ;:inv is slower than b2o .
>>>> ----------------------------------------------------------------------
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>> ----------------------------------------------------------------------
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>>
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