NAME
    Params::Smart - use both positional and named arguments in a subroutine

REQUIREMENTS
    The following non-core modules are required:

      Regexp::Common

Installation
    Installation can be done using the traditional Makefile.PL or the
    newer Build.PL methods.

    Using Makefile.PL:

      perl Makefile.PL
      make
      make test
      make install

    (On Windows platforms you should use nmake instead.)

    Using Build.PL (if you have Module::Build installed):

      perl Build.PL
      perl Build
      perl Build test
      perl Build install

SYNOPSIS
      use Params::Smart 0.04;

      sub my_sub {
        %args = Params(qw( foo bar ?bo ?baz ))->args(@_);
        ...
      }

      my_sub( foo=> 1, bar=>2, bo=>3 );  # call with named arguments

      my_sub(1, 2, 3);                   # same, with positional args

DESCRIPTION
    This module provides "smart" parameter handling for subroutines without
    having to use a changed syntax or source filters. Features include:

    *   Mixed use of named and positional parameters.

    *   Type checking and coercion through callbacks.

    *   Dyanmic paramaters configured from callbacks.

    *   Memoization of "Simple Paramater Templates".

    See the module documentation for more information.

REVISION HISTORY
    Changes since previous release:

    0.04  Thu Apr 28 2005
	- rewrote documentation
	- uses Regexp::Common
	- defaults can have double-quote-delimited strings
	- changed format of error messages
	- added friendlier usage message on error
	- parameter name aliases allowed
	- callbacks can modify parameters
	- use custom memoization due to issues with callbacks
	- implemented callbacks
	- misc optimizations/tweaks
        - added hashref params as alternative to strings
	- added parse_param and set_param methods
	- additional information documented
	- fixed formatting mistake in POD

    See the Changes file included with the distribution.

CAVEATS
    *This is an experimental module, and the interface may change.* More
    likely additional features will be added.

SEE ALSO
    This module is superficially similar in function to Getargs::Mixed but
    does not require named parameters to have an initial dash ('-').

    Sub::NamedParams will create a named-parameter wrapper around
    subroutines which use positional parameters.

    The syntax of the paramater templates is inspired by Perl6::Subs, though
    not necessarily compatible. (See also *Apocalypse 6* in Perl6::Bible).

    Sub::Usage inspired the error-messages returned by calls to arg().

    Params::Validate is useful for (additional) parameter validation beyond
    what this module is capable of.

AUTHOR
    Robert Rothenberg <rrwo at cpan.org>

  Suggestions and Bug Reporting
    Feedback is always welcome. Please use the CPAN Request Tracker at
    <http://rt.cpan.org> to submit bug reports.

LICENSE
    Copyright (c) 2005 Robert Rothenberg. All rights reserved. This program
    is free software; you can redistribute it and/or modify it under the
    same terms as Perl itself.