YAML::PP::Schema::Tie::IxHash#

(Deprecated) Schema for serializing ordered hashes

SYNOPSIS#

use YAML::PP;
use Tie::IxHash;
my $yp = YAML::PP->new( schema => [qw/ + Tie::IxHash /] );

tie(my %ordered, 'Tie::IxHash');
%ordered = (
    U => 2,
    B => 52,
);

my $yaml = $yp->dump_string(\%ordered);


# Output:
---
U: 2
B: 52

DESCRIPTION#

This is deprecated. See the new option preserve in YAML::PP.

This schema allows you to dump ordered hashes which are tied to Tie::IxHash.

This code is pretty new and experimental.

It is not yet implemented for loading yet, so for now you have to tie the hashes yourself.

Examples:

  • order

    # Code
    tie(my %order, 'Tie::IxHash');
    %order = (
        U => 2,
        B => 52,
        c => 64,
        19 => 84,
        Disco => 2000,
        Year => 2525,
        days_on_earth => 20_000,
    );
    \%order;
    
    
    # YAML
    ---
    U: 2
    B: 52
    c: 64
    19: 84
    Disco: 2000
    Year: 2525
    days_on_earth: 20000
    
  • order_blessed

    # Code
    tie(my %order, 'Tie::IxHash');
    %order = (
        U => 2,
        B => 52,
        c => 64,
        19 => 84,
        Disco => 2000,
        Year => 2525,
        days_on_earth => 20_000,
    );
    bless \%order, 'Order';
    
    
    # YAML
    --- !perl/hash:Order
    U: 2
    B: 52
    c: 64
    19: 84
    Disco: 2000
    Year: 2525
    days_on_earth: 20000
    

METHODS#

  • register

    Called by YAML::PP::Schema