I'm trying to call markdown as an external process

> I'm trying to do something which (I think) is very simple: I just want to run a line of text through Markdown and get the output.
>
> I've spent all day reading through the code for OSProcess and CommandShell.  It took me a while, but I finally figured out I can run a command and get its output with:
>
> UnixProcess waitForCommandOutput: 'ls ~'
>
> The next problem I'm having is getting markdown to run on an arbitrary string.  If I go into my shell and do:
>
> $ /usr/local/bin/markdown <<END
>> # This is a heading
>> This is a paragraph with _emphasis_
>> END
> <h1>This is a heading</h1>
>
> Then I get the output that I expect:
> <p>This is a paragraph with <em>emphasis</em></p>
>
> I can't figure out how to do this with OSProcess though.  I've tried:
>
> UnixProcess waitForCommand: ('/usr/local/bin/markdown <<END
> hello world
> END')
>
> but with no luck.  I've also tried using OSProcess at a lower level, setting up the stream input object, but it seems to require a reference to an actual file, rather than just a stream.
>
> Anyone have any ideas?  I want to take an arbitrary string and use that as the input to my markdown command, and then store that output in an instance variable.  I could use some help.
>
> Thanks,
> Pat

> David may help you.
>
> Cheers
>
> Mariano
>
> On Wed, Oct 6, 2010 at 2:27 AM, Pat Maddox <[hidden email]> wrote:
>
> > On Oct 5, 2010, at 5:05 PM, Pat Maddox wrote:
> >
> > > I'm trying to do something which (I think) is very simple: I just want to
> > run a line of text through Markdown and get the output.
> > >
> > > I've spent all day reading through the code for OSProcess and
> > CommandShell.  It took me a while, but I finally figured out I can run a
> > command and get its output with:
> > >
> > > UnixProcess waitForCommandOutput: 'ls ~'
> > >
> > > The next problem I'm having is getting markdown to run on an arbitrary
> > string.  If I go into my shell and do:
> > >
> > > $ /usr/local/bin/markdown <<END
> > >> # This is a heading
> > >> This is a paragraph with _emphasis_
> > >> END
> > > <h1>This is a heading</h1>
> > >
> > > Then I get the output that I expect:
> > > <p>This is a paragraph with <em>emphasis</em></p>
> > >
> > > I can't figure out how to do this with OSProcess though.  I've tried:
> > >
> > > UnixProcess waitForCommand: ('/usr/local/bin/markdown <<END
> > > hello world
> > > END')
> > >
> > > but with no luck.  I've also tried using OSProcess at a lower level,
> > setting up the stream input object, but it seems to require a reference to
> > an actual file, rather than just a stream.
> > >
> > > Anyone have any ideas?  I want to take an arbitrary string and use that
> > as the input to my markdown command, and then store that output in an
> > instance variable.  I could use some help.
> > >
> > > Thanks,
> > > Pat
> >
> > Okay I've got something which appears to work fine.
> >
> > (OSProcess thisOSProcess command: '/usr/local/bin/markdown' input: '#this
> > is a heading
> > this is a paragraph _with emphasis_') output
> >
> > Kind of a painful day, but glad to be moving on :)
> >
> > Pat
> >
> > _______________________________________________
> > Pharo-users mailing list
> > [hidden email]
> > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users
> >