it is often best to use fif when such searches are needed for "strange"
character contents of files.

2011/11/1 Andrew Pennebaker <[email protected]>

> Raul, because I saw no semantics explaining how an obscure operation like
> 4!:4@< bind 'lcd' { 4!:3 bind '' would work, so I had to guess. The
> operators 4!, @, <, and " are unintelligible to a new J programmer, and
> they can't be Googled.
>
> Cheers,
>
> Andrew Pennebaker
> www.yellosoft.us
>
> On Tue, Nov 1, 2011 at 6:33 AM, Raul Miller <[email protected]> wrote:
>
> > Given that, when executed, (4!:4@< bind 'lcd' { 4!:3 bind '') gives
> > you the location of the script that defined the name lcd, why would
> > you expect the same result when defining the name from two completely
> > different sources?
> >
> > --
> > Raul
> >
> > On Mon, Oct 31, 2011 at 2:18 PM, Andrew Pennebaker
> > <[email protected]> wrote:
> > > This snippet behaves differently in the interpreter vs a J code file:
> > >
> > > $ jconsole
> > >   lcd =: 3 : ' (4!:4<''lcd'') { 4!:3 $0 '
> > >   COMMON_SCRIPT_PATH =: ;}:}:;:>lcd''
> > >
> > >   COMMON_SCRIPT
> > > /Applications/j64-701/system/main/
> > >
> > > $ cat jlib.j
> > > #!/usr/bin/env jconsole
> > >
> > > lcd =: 3 : ' (4!:4<''lcd'') { 4!:3 $0 '
> > > COMMON_SCRIPT_PATH =: ;}:}:;:>lcd''
> > >
> > > echo COMMON_SCRIPT_PATH
> > >
> > > exit ''
> > >
> > > $ ./jlib.j
> > > /Users/andrew/Desktop/src/mcandre/j/./
> > >
> > > This is unfortunate because I was planning to use the snippet as part
> of
> > a
> > > Makefile that would install my J package when a user enters "make
> > install".
> > >
> > > Cheers,
> > >
> > > Andrew Pennebaker
> > > www.yellosoft.us
> > >
> > > On Mon, Oct 31, 2011 at 10:29 AM, Tracy Harms <[email protected]>
> > wrote:
> > >
> > >> I have found the following code helpful in loading J scripts:
> > >>
> > >>   lcd =: 3 : ' (4!:4<''lcd'') { 4!:3 $0 '
> > >>   COMMON_SCRIPT_PATH=: ;}:}:;:>lcd''
> > >>   NB. path of directory from which this script is being run.
> > >>
> > >> This allows me to put associated scripts in any directory, launch the
> > root
> > >> script of that set (via jconsole.exe) and have that script load the
> > other
> > >> scripts by determining its own path. The load sentences are like this:
> > >>
> > >>   load COMMON_SCRIPT_PATH, 'somescript.ijs'
> > >>
> > >> Thanks goes to Dan Bron for directing me to this useful code.
> > >>
> > >> --Tracy
> > >>
> > >>
> > >> On Sun, Oct 30, 2011 at 5:03 PM, Andrew Pennebaker <
> > >> [email protected]> wrote:
> > >>
> > >> > If I have a local file coolstuff.j, where do I put coolstuff.j so
> > that I
> > >> > can do load 'coolstuff.j' from anywhere? If possible I'd like to put
> > all
> > >> my
> > >> > J code in ~/.j or a similar directory and have J know to look there
> > when
> > >> > loading code.
> > >> >
> > >> > In other words, where does J search for code?
> > >> >
> > >> > Does J have an environment variable similar to Java's $CLASSPATH?
> > >> >
> > >> > Cheers,
> > >> >
> > >> > Andrew Pennebaker
> > >> > www.yellosoft.us
> > >> >
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-- 
Björn Helgason, Verkfræðingur
Fornustekkum II
781 Hornafirði,
t-póst: [email protected]
gsm: +3546985532
twitter: @flugfiskur
http://groups.google.com/group/J-Programming


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