[Jprogramming] pwd? tasks.ijs?

[Oleg Kobchenko]

Did you try flipping the args, because this "spawn~" is strange

> |       x
> | +---------------------------------------------+
> | ¦C:\cygwin\bin\bash.exe --login¦C:\cygwin\bin\¦
> | +---------------------------------------------+
> |       WriteFile y;x;(#x);(sint 0);0
> | |domain error: cd
> | |cd[:0]

It tries to write to child stdin a boxed list of args?

Also why can't the cd functionality be passed into
the command itself such as 

   cd \ & dir



--- Bill Harris <bill_harris at facilitatedsystems.com> wrote:

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> Dan Bron <jf at dbron.net> writes:
> 
> > This:
> >
> >>,----[ .ijx snippet ]
> >>|    shell './executbl.flename datafle.flname.in'
> >>| '.' is not recognized as an internal or external command,
> >>| operable program or batch file.
> >>`----
> >
> > is due to the fact that shell (from tasks) is defined to use cmd.exe,
> > not cygwin.  Even if you launched J from a cygwin shell, the shell
> > verb is still going to invoke cmd.exe.
> 
> Thanks; that fixes one misperception I had.  Indeed, I can't execute
> that command from a Windows Command Prompt, either; I get the same error
> message.
> 
> > Try using the verb bash I provided.  Or maybe switch your slashes to
> > backslashes.
> 
> Backslashes didn't make a difference; cmd couldn't deal with the ".",
> nor could it find the cygwin dll.
> 
> I'm struggling with your bash verb right now:
> 
> ,----[ I did change task.ijs ]
> |    load'task'
> |    CreateProcessF_jtask_
> | 'kernel32 CreateProcessA i i *c i i i  i i *c *c *c'&cd
> |    CreateProcess_jtask_
> | 3 : 0
> | 
> | NB. stuff elided
> |
> | pi=. szero PROCESSINFO
> | NB. 'r i1 c i2 i3 i4 f i5 i6 si pi'=. CreateProcessF 0;y;0;0;inh; f;0;0;si;pi
> | if. 0 = L.y do. cwd=.<0 else. 'y cwd'=.y end.
> | 'r i1 c i2 i3 i4 f i5 i6 si
> | if. 0=r do. 0 return. end.
> |
> | NB. more stuff elided
> |
> | )
> `----
> 
> I defined bash:
> 
> ,----
> | bash =: verb define
> |           y spawn~ 'C:\cygwin\bin\bash.exe --login';'C:\cygwin\bin\'
> |      )
> `----
> 
> but it doesn't work, at least the way I'm guessing it should:
> 
> ,----
> |    bash 'ls'
> | |domain error: cd
> | |   'r i1 str i2 len i3'=.    WriteFile y;x;(#x);(sint 0);0
> |    
> `----
> 
> That's apparently in WriteAll:
> 
> ,----[ WriteAll body ]
> | WriteAll=: 3 : 0
> | :
> | while. #x do.
> |   'r i1 str i2 len i3'=. WriteFile y;x;(#x);(sint 0);0
> |   len=. int len
> |   if. (0=r)+.0=len do.
> |     'ec es'=: cderx''
> |     if. -.ec e.0 109 do. ret=. _1 end.
> |     break.
> |   end.
> |   x=. len}.x
> | end.
> | 1
> | )
> `----
> 
> 
> ,----[ A bit of debug ]
> |    load'debug'
> |    dbr 1
> |    bash 'dir'
> | |domain error: cd
> | |cd[:0]
> |       cd
> | 15!:0
> |       y
> | 512
> |       x
> | +---------------------------------------------+
> | ¦C:\cygwin\bin\bash.exe --login¦C:\cygwin\bin\¦
> | +---------------------------------------------+
> |       #x
> | 2
> |       sint
> | 2&ic
> |       sint 0
> | 
> |       ic
> | 3!:4
> |       WriteFile y;x;(#x);(sint 0);0
> | |domain error: cd
> | |cd[:0]
> |       
> `----
> 
> Some things do work:
> 
> ,----
> |    '+/i.3 4' spawn'jconsole'
> |    12 15 18 21
> |   fork 'notepad.exe'
> |   shell'echo.|time' 
> | The current time is: 15:04:54.27
> | Enter the new time: 
> |     (shell 'dir /b') shell 'find "*.ijs"'
> | breaker.ijs
> | profile.ijs
> `----
> 
> Any clues?  I'll work through other suggestions people have sent in, but
> the bash verb seemed to be the most promising.
> 
> Thanks,
> 
> Bill
> - -- 
> Bill Harris                      http://facilitatedsystems.com/weblog/
> Facilitated Systems                              Everett, WA 98208 USA
> http://facilitatedsystems.com/                  phone: +1 425 337-5541
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