in reply to Re: run TreeTagger in Windows
in thread run TreeTagger in Windows

Hi, thank you for the reply. I'm trying to use the same thing that I found at perlipc. 
if (system('mkfifo',"$FIFO.in")||system('mkfifo',"$FIFO.out")  ) { 
    print STDERR "Cannot create pipes $FIFO.in or $FIFO.in\n";
    exit(1);
  }

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This requires that the 'mkfifo' is there somehow. When I try to run the code I get the following error message:
" 'mkfifo' is not recognized as an internal or external command, operable program or batch file. Cannot create pipes /tmp/treetagger_2216.in or ..." From the perlipc I cannot get any clues for how to solve this. It might be that I just don't understands... Any further ideas?
bests,
-lilli.

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Re^3: run TreeTagger in Windows
by BrowserUk (Patriarch) on Mar 03, 2009 at 14:21 UTC
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[d/l]
      I'm using Perl Power Tools (aka the Unix Reconstruction Project) from the ppt-0.14 package which is there to implement the unix commands in perl. And if I understand it right, it should be working on all types of OP's. But when running it I get the following error: POSIX::mkfifo not implemented on this architecture at C:\Perl\site.....
      Any ideas?
      Bests,
      -lilli.
[reply]
[d/l]
[reply]
        NOT IMPLEMENTED means you can't have it, its NOT IMPLEMENTED :D
[reply]
      Windows supports named pipes. They even exist on the file system. I think they are constrained to a pseudo volume, but that probably not an issue in this case. It sounds like a solution could be obtained which wouldn't involve changing the child.
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        From my reading of the OPs situation, the other end of the fifo is a pre-existing application. And if that application is using fifos, it must run on unix. Probably on a unix server?

        Short of porting that to Windows, I don't see how the two are going to communicate?

        Even cygwin doesn't provide a mkfifo emulation, and I've never heard of anyone successfully connecting to a unix fifo using a Windows Named Pipe. I guess it might be possible via something like Samba?

        Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
        "Science is about questioning the status quo. Questioning authority".
        In the absence of evidence, opinion is indistinguishable from prejudice.
[reply]
        Changing what child? Could you maybe be more specific on how a solution could be obtained?
        Bests,
        -lilli.
[reply]
Re^3: run TreeTagger in Windows
by cdarke (Prior) on Mar 03, 2009 at 15:16 UTC
    Did you download mkfifo from the GNU site? Can you drive it from the Windows command-line?

    I suggest you take a look at the Avis::TreeTagger module code - it does nothing more than run the TreeTagger program attached to named pipes. I would not use it on Windows because it uses UNIX hard-coded path names and fork/exec.

    In theory all you have to do is run the TreeTagger program only use IPC::Open2 instead. You will then have two file handles to anonymous pipes instead of named pipes.
[reply]

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