There is a workaround, namely applying the atomic representation (5!:1) and then applying the string representation (5!:5) to *that.* (The inverse is execute, and then applying 5!:0 to *that*.) The result however is much less readable in the vast majority of cases.
On Wed, Jan 4, 2012 at 9:06 AM, Jose Mario Quintana < josemarioquint...@2bestsystems.com> wrote: > There is also a resistant bug in the linear representation that might be > important to (tacit) adverbial programmers; see > http://www.jsoftware.com/pipermail/general/2009-August/033231.html > > ________________________________________ > From: programming-boun...@jsoftware.com [programming-boun...@jsoftware.com] > On Behalf Of Ian Clark [earthspo...@gmail.com] > Sent: Tuesday, January 03, 2012 10:18 PM > To: Programming forum > Subject: Re: [Jprogramming] Turning verbs to and from strings > > Yes, that's my understanding about 5!:5 too. > > > Am I missing something important? > > Yes you are missing something important ...to me. > > I guess you're puzzled by repnoun in: > > repn=: 3 : 0 > NB. Re-inputtable represn of item (y) > if. 'NB.' -: 3{. y do. y return. end. NB. output a comment as-is > select. t=. >type y > case. 'invalid name' do. y repnerr t > case. 'not defined' do. y repnerr t > case. 'noun' do. repnoun y > case. 'adverb' do. 5!:5 <y > case. 'conjunction' do. 5!:5 <y > case. 'verb' do. 5!:5 <y > case. 'unknown' do. y repnerr t > end. > ) > > repnoun is a sort of plugboard to help me quickly slot-in a special > treatment without need for debugging or side-effects. In the untouched > cases (most of them, in fact) it falls back on: cr -which is just a > cover for 5!:5 . > > Why? > > I generate a lot of scripts with Lobrow, intended for hand-editing, > and I now-and-then encounter cases where 5!:5 gives IMO an unhappy > result, which I fix-up on-the-fly. > > For instance: > > zz=: 'alpha',LF,'bravo',LF,'charlie' > > 5!:5 <'zz' > 97 108 112 104 97 10 98 114 97 118 111 10 99 104 97 114 108 105 101{a. > > But... > > repnoun 'zz' > }: 0 : 0 > alpha > bravo > charlie > ) > > > On Mon, Jan 2, 2012 at 4:50 PM, Raul Miller <rauldmil...@gmail.com> wrote: > > I believe that > > > > name,'=: ',5!:5 <name > > > > should give a definition for any valid name which is suitable for use > > in a script file. > > > > The deficiencies I am aware of for 5!:5 have to do with using its > > result as an argument for (".) > > > > When I looked at your code to see what you were not using 5!:5 for, I > > see that you are not using it for nouns. But I believe that all bugs > > involving 5!:5's treatment of nouns have long since been fixed. > > > > Am I missing something important? > > > > Thanks, > > > > -- > > Raul > > > > > > > > On Sun, Jan 1, 2012 at 7:33 AM, Ian Clark <earthspo...@gmail.com> wrote: > >> If you're writing your own IDE for J, then see sample code at: > >> http://www.jsoftware.com/jwiki/IanClark/LoBrow > >> > >> LoBrow makes a legible char array from not just an explicit verb but > >> any J word. To do that it handles each case separately. See the verb: > >> repn (which mainly uses 5!:5), called by: item2panel. > >> > >> But the reverse operation, broadly comparable to []FX, is done using > >> 0!:111 -which works for everything. Provided you handle your > >> "character matrix" as a LF-separated string. > >> > >> Or 0!:110 if you don't want it to display in the session window. > >> > >> On Sat, Dec 31, 2011 at 3:50 PM, Blake McBride <bl...@mcbride.name> > wrote: > >>> 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 > >> ---------------------------------------------------------------------- > >> 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 > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
