AppConfig::Getopt(3pm) User Contributed Perl Documentation AppConfig::Getopt(3pm)
NAME
AppConfig::Getopt - Perl5 module for processing command line arguments via delegation to
Getopt::Long.
SYNOPSIS
use AppConfig::Getopt;
my $state = AppConfig::State->new(\%cfg);
my $getopt = AppConfig::Getopt->new($state);
$getopt->parse(\@args); # read args
OVERVIEW
AppConfig::Getopt is a Perl5 module which delegates to Johan Vroman's Getopt::Long module
to parse command line arguments and update values in an AppConfig::State object
accordingly.
AppConfig::Getopt is distributed as part of the AppConfig bundle.
DESCRIPTION
USING THE AppConfig::Getopt MODULE
To import and use the AppConfig::Getopt module the following line should appear in your
Perl script:
use AppConfig::Getopt;
AppConfig::Getopt is used automatically if you use the AppConfig module and create an
AppConfig::Getopt object through the getopt() method.
AppConfig::Getopt is implemented using object-oriented methods. A new AppConfig::Getopt
object is created and initialised using the new() method. This returns a reference to a
new AppConfig::Getopt object. A reference to an AppConfig::State object should be passed
in as the first parameter:
my $state = AppConfig::State->new();
my $getopt = AppConfig::Getopt->new($state);
This will create and return a reference to a new AppConfig::Getopt object.
PARSING COMMAND LINE ARGUMENTS
The "parse()" method is used to read a list of command line arguments and update the state
accordingly.
The first (non-list reference) parameters may contain a number of configuration strings to
pass to Getopt::Long::Configure. A reference to a list of arguments may additionally be
passed or @ARGV is used by default.
$getopt->parse(); # uses @ARGV
$getopt->parse(\@myargs);
$getopt->parse(qw(auto_abbrev debug)); # uses @ARGV
$getopt->parse(qw(debug), \@myargs);
See Getopt::Long for details of the configuartion options available.
A Getopt::Long specification string is constructed for each variable defined in the
AppConfig::State. This consists of the name, any aliases and the ARGS value for the
variable.
These specification string are then passed to Getopt::Long, the arguments are parsed and
the values in the AppConfig::State updated.
See AppConfig for information about using the AppConfig::Getopt module via the getopt()
method.
AUTHOR
Andy Wardley, <abw AT wardley.org>
COPYRIGHT
Copyright (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.
ACKNOWLEDGMENTS
Many thanks are due to Johan Vromans for the Getopt::Long module. He was kind enough to
offer assistance and access to early releases of his code to enable this module to be
written.
SEE ALSO
AppConfig, AppConfig::State, AppConfig::Args, Getopt::Long
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