Re: CLI library question

[Parag Thakur]

thanks for the response, John!

Here are the arguments i expect:

cmd -exec -exec_opt1 -exec_opt2
cmd -rep -rep_opt1 -rep_opt2

Thus, depending on the first argument (-exec or -rep), i would like to parse
the remaining arguments. So, here is the code snippet that i have:

    // create the main options object which will handle the first parameter
    Options mainOptions = new Options();
    // There can be 2 main exclusive options:  -exec|-rep

    // Therefore, place them in an option group

    OptionGroup grp = new OptionGroup();

    grp.addOption(new Option("exec",false,"description for this option"));

    grp.addOption(new Option("rep",false,"description for this option"));

    mainOptions.addOptionGroup(grp);

    // for the exec option, there are 2 options...
    execOptions = new Options();
    execOptions.addOption("exec_opt1",false," desc");
    execOptions.addOption("exec_opt2",false," desc");

    // similarly, for rep there are 2 options...
    repOptions = new Options();
    repOptions.addOption("rep_opt1","false","desc");
    repOptions.addOption("rep_opt2","false","desc");

    // create the parser
    CommandLineParser parser =
CommandLineParserFactory.newParser("org.apache.commons.cli.GnuParser");

    // finally, parse the arguments:

    // first parse the main options to see what the user has specified
    // We set stopAtNonOption to true so it does not touch the remaining
    // options
    CommandLine cmd = parser.parse(mainOptions,argv,true);
    // get the remaining options...
    argv = cmd.getArgs();

    if(cmd.hasOption("exec")){
        cmd = parser.parse(execOptions,argv,false);
        // process the exec_op1 and exec_opt2...
    }
    else if(cmd.hasOption("rep")){
        cmd = parser.parse(repOptions,argv,false);
        // process the rep_op1 and rep_opt2...
    }
    else {
        printUsage();
    }


thanks again for your help!
regards,
parag.

----- Original Message -----
From: "John Keyes" <[EMAIL PROTECTED]>
To: "Jakarta Commons Users List" <[EMAIL PROTECTED]>
Sent: Wednesday, August 28, 2002 3:54 PM
Subject: Re: CLI library question


> Hi Parag,
>
> Do you have some sample code for this.  I will give it a wizz in a mo
> and see
> what happens.
>
> I had identified this as a possible problem area but I haven't had a
> chance to
> address it yet.
>
> Cheers,
> -John K
>
> On Wednesday, August 28, 2002, at 05:59 , Parag Thakur wrote:
>
> > hi!
> >
> > I have a CLI library question...
> >
> > In the GnuParser, is there a reason why the flatten() method does not
> > pay
> > attention to the "stopAtNoAction" parameter? In my parse method, I am
> > using
> > the Gnu Parser with the stopAtNoAction set to true. But it's throwing an
> > exception when it encounters an option it does not recognize instread of
> > stopping the parsing...
> >
> > thanks in advance!
> > regards,
> > parag.
> >
> >
> > --
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>
>
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