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Date: Tue, 12 Sep 2006 16:00:24 -0700 (PDT)
From: "David Leal (JIRA)" <jira@apache.org>
To: commons-dev@jakarta.apache.org
Subject: [jira] Commented: (CLI-113) generate ant task automatically from
 CLI
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    [ http://issues.apache.org/jira/browse/CLI-113?page=comments#action_12434307 ] 
            
David Leal commented on CLI-113:
--------------------------------

The similar product JSAP, provide such utility, it simplify a lot the process of defining the input argument syntax, because you don't need a Java class for defining the its syntax.

You can look on the following link:

http://www.martiansoftware.com/jsap/doc/ch14.html

as you can see they use xstream and probably from it generates an equivalent Java source class. The important point is to define a quite general XML syntax. 

As you can see the JSAP syntax is language depend, becuase the help node, a better solution would be to define a help_key, so the application will look in to properties file, via ResourceBundle class.

I would be a kind of Inverse of Control (IoC) for CLI, you define what you want in a configuration file, and the application instance the corresponding parser after XML validation the Java validation will be simpler.

David Leal

> generate ant task automatically from CLI
> ----------------------------------------
>
>                 Key: CLI-113
>                 URL: http://issues.apache.org/jira/browse/CLI-113
>             Project: Commons CLI
>          Issue Type: Improvement
>         Environment: Operating System: other
> Platform: Other
>            Reporter: pklein
>            Priority: Minor
>             Fix For: 2.1
>
>
> I'd like to suggest an enhancement to CLI - 
> 1) have CLI generate a schema of the command line options it expects
> 2) write some code to read the schema, and generate an ant task 
> Any project using CLI would then be able to easily produce an ant task.

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