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use strict; use warnings;
package YAML::Any;
our $VERSION = '1.15';
use Exporter ();
@YAML::Any::ISA = 'Exporter';
@YAML::Any::EXPORT = qw(Dump Load);
@YAML::Any::EXPORT_OK = qw(DumpFile LoadFile);
my @dump_options = qw(
UseCode
DumpCode
SpecVersion
Indent
UseHeader
UseVersion
SortKeys
AnchorPrefix
UseBlock
UseFold
CompressSeries
InlineSeries
UseAliases
Purity
Stringify
);
my @load_options = qw(
UseCode
LoadCode
);
my @implementations = qw(
YAML::XS
YAML::Syck
YAML::Old
YAML
YAML::Tiny
);
sub import {
__PACKAGE__->implementation;
goto &Exporter::import;
}
sub Dump {
no strict 'refs';
no warnings 'once';
my $implementation = __PACKAGE__->implementation;
for my $option (@dump_options) {
my $var = "$implementation\::$option";
my $value = $$var;
local $$var;
$$var = defined $value ? $value : ${"YAML::$option"};
}
return &{"$implementation\::Dump"}(@_);
}
sub DumpFile {
no strict 'refs';
no warnings 'once';
my $implementation = __PACKAGE__->implementation;
for my $option (@dump_options) {
my $var = "$implementation\::$option";
my $value = $$var;
local $$var;
$$var = defined $value ? $value : ${"YAML::$option"};
}
return &{"$implementation\::DumpFile"}(@_);
}
sub Load {
no strict 'refs';
no warnings 'once';
my $implementation = __PACKAGE__->implementation;
for my $option (@load_options) {
my $var = "$implementation\::$option";
my $value = $$var;
local $$var;
$$var = defined $value ? $value : ${"YAML::$option"};
}
return &{"$implementation\::Load"}(@_);
}
sub LoadFile {
no strict 'refs';
no warnings 'once';
my $implementation = __PACKAGE__->implementation;
for my $option (@load_options) {
my $var = "$implementation\::$option";
my $value = $$var;
local $$var;
$$var = defined $value ? $value : ${"YAML::$option"};
}
return &{"$implementation\::LoadFile"}(@_);
}
sub order {
return @YAML::Any::_TEST_ORDER
if @YAML::Any::_TEST_ORDER;
return @implementations;
}
sub implementation {
my @order = __PACKAGE__->order;
for my $module (@order) {
my $path = $module;
$path =~ s/::/\//g;
$path .= '.pm';
return $module if exists $INC{$path};
eval "require $module; 1" and return $module;
}
croak("YAML::Any couldn't find any of these YAML implementations: @order");
}
sub croak {
require Carp;
Carp::croak(@_);
}
1;
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