Re: [tcljava-user] Expect support

[Chet V. <che...@gm...>]

Thanks to everyone for responding. Justin, thanks for the links....the
enchanter project looks interesting from our vantage point at first
glance.

It would be cool if its possible to integrate a Java scripting API to
it.(jsr223)

Regards,
CV



On Nov 8, 2007 5:59 PM, Mo DeJong <mo...@mo...> wrote:
>
> Justin Ryan wrote:
> > In the Java space you have a few options for ssh/telnet scripting. The
> > cleanest implementation I've seen is enchanter (1).  While expectj (2)
> > is more compliant with actual expect library. I learned this while
> > investigating a expect solution for tcljava, and I also found that my
> > best option was to just write one myself which supports not only
> > expect in java but also the bindings needed for tcljava. The library
> > is called expect4j:
> >
> > http://code.google.com/p/expect4j/
> >
> > expect4j is aimed at supporting the functionality of the C-based
> > expect library, started by Don Libes, in java and tcljava.  The
> > library is written in java and uses a bootstrap class called
> > ExpectEmulation of load the relevant bindings into a tcljava Intrep.
> > The most important tcl functions have been implement, e.g. expect,
> > send, spawn. A full list of supported functions and global variables
> > are commented in ExpectEmulation.java.  I've successfully ported a
> > 100K tcl script based on expect to tcljava, without any changes, by
> > just using expect4j.
> >
> > One of the major limitations is that only ssh and telnet are supported
> > by the spawn command. This was done to limit interactions with
> > Runtime.exec(), and to keep the library completely in the java space.
> > This avoids the need for process control, forking, and PTYs.  On the
> > otherhand, the Expect4j class can be used for automating any
> > InputStream/OutputStream or Socket.  One of the unit tests shows how
> > to automate the "cmd /c net statistics Workstation" command on
> > Windows. For support of ssh/telnet, Jsch is used for ssh and
> > commons-net is used for telnet. The expect command can also match
> > against many different regexps/strings, unlike the other expect-like
> > libraries. ORO is used for the pattern matching.
> >
> >
>
> Hi Justin
>
> Thanks for posting this note, I did not know there was a useful expect
> implementation out there
> for Jacl. BTW, if you are looking for a home for the project, I really
> have no problem with adding
> your expect implementation to the standard Jacl distro. Jacl already has
> Itcl bundled with it.
> There are some issues that would need to be ironed out (license, regexp
> impl, and so on) but it should work,
> if you are interested.
>
> cheers
>
> Mo DeJong
>
>
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