- XML configuration?
It just dawned on me that starting from an XML file would not only allow for
a tool to generate cli2 "builder" code, but that additional type-safe
wrapper methods could be generated such that instead of an app doing:
String name = cmd.getValue("n");
int count = Integer.parseInt(cmd.getValue("c"));
You could have:
String countryCode = myCmd.getName();
int count = myCmd.getCount();
Which is stuff I end up doing in my apps now.
Gary
-----Original Message-----
From: Rob Oxspring [mailto:[EMAIL PROTECTED]
Sent: Monday, August 11, 2003 17:10
To: Jakarta Commons Developers List
Subject: [CLI] 2.0 Proposal
Hi all,
I've finally got to another sensible point to present my CLI2 proposal.
I've started using the maven build process so this time I'm able to supply
binaries as well as sources, unfortunately though, I've not bothered to get
them named sensibly yet.
Grab zips from http://www.oxspring.demon.co.uk/cli/3/ and have a quick look
at http://www.oxspring.demon.co.uk/cli/3/docs/usage.html for a first cut of
basic usage documentation.
So, features:
- Complete rewrite to use clean model from the beginning.
- Sits in org.apache.commons.cli2 so that there is no conflict with the
cli1 class files - they can probably be deprecated rather than deleted.
- Each Option implementation is responsible for its own functionality -
parsing, validation, help/usage strings all handled by the Options
themselves.
- Copes with standard options, cvs style commands and +/- switches with
arguments and in flexible groups.
- Copes with java style property arguments and "--" options in a clean
mannar
- Anonymous arguments "fall out" of the design (just add to a Group)
- Easily extended to new option types with minimal changes necessary
- HelpFormatter has returned
- CommandLineParser adds parseAndHelp(..) method to easily add basic
error reporting and usage help to client applications (Only thought of this
at the weekend but it seems to work and only throws the IOException of
writing out the help
http://www.oxspring.demon.co.uk/cli/3/docs/usage.html#Querying%20CommandLine
)
- Order of Options is dependant on Comparators so can be customised at
runtime.
And still todo:
- More docs
- Pluggable argument validation
- XML configuration?
- Reflection configuration?
- Ant task generation?
- Always more tests
Any thoughts and comments are welcome,
Rob
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