Config::Extensions(3perl) Perl Programmers Reference Guide Config::Extensions(3perl)NAME
Config::Extensions - hash lookup of which core extensions were built.
SYNOPSIS
use Config::Extensions '%Extensions';
if ($Extensions{PerlIO::via}) {
# This perl has PerlIO::via built
}
DESCRIPTION
The Config::Extensions module provides a hash %Extensions containing all the core extensions that were enabled for this perl. The hash is
keyed by extension name, with each entry having one of 3 possible values:
dynamic
The extension is dynamically linked
nonxs
The extension is pure perl, so doesn't need linking to the perl executable
static
The extension is statically linked to the perl binary
As all values evaluate to true, a simple "if" test is good enough to determine whether an extension is present.
All the data uses to generate the %Extensions hash is already present in the "Config" module, but not in such a convenient format to
quickly reference.
AUTHOR
Nicholas Clark <nick@ccl4.org>
perl v5.14.2 2010-12-30 Config::Extensions(3perl)
Check Out this Related Man Page
Config::Model::Itself::BackendDetector(3pm) User Contributed Perl Documentation Config::Model::Itself::BackendDetector(3pm)NAME
Config::Model::Itself::BackendDetector - Detect available read/write backends
SYNOPSIS
# this class should be referenced in a configuration model and
# created only by Config::Model::Node
my $model = Config::Model->new() ;
$model ->create_config_class
(
name => "Test",
'element'
=> [
'backend' => { type => 'leaf',
class => 'Config::Model::Itself::BackendDetector' ,
value_type => 'enum',
# specify backends built in Config::Model
choice => [qw/cds_file perl_file ini_file augeas custom/],
help => {
cds_file => "file ...",
ini_file => "Ini file ...",
perl_file => "file perl",
custom => "Custom format",
augeas => "Experimental backend",
}
}
],
);
my $root = $model->instance(root_class_name => 'Test') -> config_root ;
my $backend = $root->fetch_element('backend') ;
my @choices = $backend->get_choice ;
DESCRIPTION
This class is derived from Config::Model::Value. It is designed to be used in a 'enum' value where the choice (the available backends) are
the backend built in Config::Model and all the plugin backends. The plugin backends are all the "Config::Model::Backend::*" classes.
This module will detect available plugin backend and query their pod documentation to provide a contextual help for config-model graphical
editor.
AUTHOR
Dominique Dumont, (ddumont at cpan dot org)
SEE ALSO
Config::Model, Config::Model::Node, Config::Model::Value
perl v5.14.2 2012-06-22 Config::Model::Itself::BackendDetector(3pm)
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