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NAMEAppConfig::Args - Perl5 module for reading command line arguments.
use AppConfig::Args; my $state = AppConfig::State->new(\%cfg); my $cfgargs = AppConfig::Args->new($state); $cfgargs->parse(\@args); # read args
OVERVIEWAppConfig::Args is a Perl5 module which reads command line arguments and uses the options therein to update variable values in an AppConfig::State object.
AppConfig::File is distributed as part of the AppConfig bundle.
USING THE AppConfig::Args MODULE
To import and use the AppConfig::Args module the following line should appear
in your Perl script:
AppConfig::Args is used automatically if you use the AppConfig module and create an AppConfig::Args object through the parse() method.
AppConfig::File is implemented using object-oriented methods. A new AppConfig::Args object is created and initialised using the new() method. This returns a reference to a new AppConfig::File object. A reference to an AppConfig::State object should be passed in as the first parameter:
my $state = AppConfig::State->new(); my $cfgargs = AppConfig::Args->new($state);
This will create and return a reference to a new AppConfig::Args object.
PARSING COMMAND LINE ARGUMENTS
The "parse()" method is used to read a list of command line arguments and
If the method is called without a reference to an argument list then it will examine and manipulate @ARGV.
The method continues parsing arguments until it detects the first one that does not start with a leading dash, '-'. Arguments that constitute values for other options are not examined in this way.
FUTURE DEVELOPMENTThis module was developed to provide backwards compatibility (to some degree) with the preceeding App::Config module. The argument parsing it provides is basic but offers a quick and efficient solution for those times when simple option handling is all that is required.
If you require more flexibility in parsing command line arguments, then you should consider using the AppConfig::Getopt module. This is loaded and used automatically by calling the AppConfig getopt() method.
The AppConfig::Getopt module provides considerably extended functionality over the AppConfig::Args module by delegating out the task of argument parsing to Johan Vromans' Getopt::Long module. For advanced command-line parsing, this module (either Getopt::Long by itself, or in conjunction with AppConfig::Getopt) is highly recommended.
AUTHORAndy Wardley, <firstname.lastname@example.org>
COPYRIGHTCopyright (C) 1997-2007 Andy Wardley. All Rights Reserved.
Copyright (C) 1997,1998 Canon Research Centre Europe Ltd.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.