Hi Silas,

I am travelling and cannot help much right now, but to answer one of your
questions - yes, you can inspect errors in a PipeableOSProcess. It has an
"error pipeline stream" that will contain any output from the stderr
stream of the process.

It also has a process proxy for the actual external OS process, which will
show exit status for the process. In your case that probably will not help
much, because you will just see exit status for the /bin/shell that you
ran, not for the process that ran your perl script. Nevertheless it may be
interesting to check it.

One possible source of problems in a case like this is command line
parsing. The command line that you pass from Pharo may get parsed
differently than a normal bash terminal shell, especially with respect to
quoting strings. Also, you refer to an empty string, which certainly
sounds like it is related to the problem, although I cannot say why.

Dave


> Hi everyone,
>
>
>
> I'm currently experiencing problems with PipeableOSProcess. I'm using a
> command to run a third party tool, which reads a txt file and returns an
> XML
> string. In my collection, this works fine for about 75 out of 100 txt
> files,
> but fails on the remaining 25 ones. However, the tool itself doesn't fail.
> It works fine, if I issue the commands directly from a Terminal.
>
>
>
> Here's an example of a command string that works:
>
> /Users/silas/Documents/ExtendedEggShell/Moose6.0/ExtendedEggShell/tools/mac/
> parsecit/bin/citeExtract.pl -m extract_all
> /Users/silas/Documents/ExtendedEggShell/Moose6.0/ExtendedEggShell/examplePDF
> sFromList/Ache00aScriptingCoordStyles.pdf.txt
>
>
>
> And here's an example of one that doesn't work.
>
> /Users/silas/Documents/ExtendedEggShell/Moose6.0/ExtendedEggShell/tools/mac/
> parsecit/bin/citeExtract.pl -m extract_all
> /Users/silas/Documents/ExtendedEggShell/Moose6.0/ExtendedEggShell/examplePDF
> sFromList/Ardi97aSchemeTeaching.pdf.txt
>
>
>
> This is how I apply these commands through PipeableOSProcess:
>
>
>
>                 xml := (PipeableOSProcess command: cmdString) output.
>
>
>
> For the first command, xml is a large XML string, for the second command,
> it's just an empty string. As I've mentioned above, both commands work
> just
> fine in a Terminal. They both produce a correct XML string.
>
>
>
> Does anyone have an idea why this could be the case? Is there a way to
> access errors in the PipeableOSProcess, if there are any? Is there a
> better
> way to issue terminal commands from Pharo?
>
>
>
> Thanks for your help!
>
>
>
> Cheers,
>
> Silas
>
>



Reply via email to