File Coverage

blib/lib/YAML/LibYAML/API.pm

Criterion	Covered	Total	%
statement	42	43	97.6
branch	12	12	100.0
condition	4	6	66.6
subroutine	11	12	91.6
pod	0	7	0.0
total	69	80	86.2

# ABSTRACT: Wrapper around the C libyaml library
package YAML::LibYAML::API;
use strict;
use warnings;

our $VERSION = 'v0.14.0'; # VERSION

use YAML::PP::Common qw/
    YAML_ANY_SCALAR_STYLE YAML_PLAIN_SCALAR_STYLE
    YAML_SINGLE_QUOTED_SCALAR_STYLE YAML_DOUBLE_QUOTED_SCALAR_STYLE
    YAML_LITERAL_SCALAR_STYLE YAML_FOLDED_SCALAR_STYLE
    YAML_QUOTED_SCALAR_STYLE

    YAML_ANY_SEQUENCE_STYLE
    YAML_BLOCK_SEQUENCE_STYLE YAML_FLOW_SEQUENCE_STYLE

    YAML_ANY_MAPPING_STYLE
    YAML_BLOCK_MAPPING_STYLE YAML_FLOW_MAPPING_STYLE
/;

my @scalar_styles = (
    YAML_ANY_SCALAR_STYLE,
    YAML_PLAIN_SCALAR_STYLE,
    YAML_SINGLE_QUOTED_SCALAR_STYLE,
    YAML_DOUBLE_QUOTED_SCALAR_STYLE,
    YAML_LITERAL_SCALAR_STYLE,
    YAML_FOLDED_SCALAR_STYLE,
);
my %scalar_styles;
@scalar_styles{ @scalar_styles } = 0 .. $#scalar_styles;

my @sequence_styles = (
    YAML_ANY_SEQUENCE_STYLE,
    YAML_BLOCK_SEQUENCE_STYLE,
    YAML_FLOW_SEQUENCE_STYLE,
);
my %sequence_styles;
@sequence_styles{ @sequence_styles } = 0 .. $#sequence_styles;

my @mapping_styles = (
    YAML_ANY_MAPPING_STYLE,
    YAML_BLOCK_MAPPING_STYLE,
    YAML_FLOW_MAPPING_STYLE,
);
my %mapping_styles;
@mapping_styles{ @mapping_styles } = 0 .. @mapping_styles;

# deprecated
sub parse_events {
    parse_string_events(@_);
}

sub parse_string_events {
    my ($yaml, $events) = @_;
    YAML::LibYAML::API::XS::parse_string_events($yaml, $events);
    _numeric_to_string($events);
}

sub parse_file_events {
    my ($file, $events) = @_;
    YAML::LibYAML::API::XS::parse_file_events($file, $events);
    _numeric_to_string($events);
}

sub parse_filehandle_events {
    my ($fh, $events) = @_;
    YAML::LibYAML::API::XS::parse_filehandle_events($fh, $events);
    _numeric_to_string($events);
}

sub emit_string_events {
    my ($events, $options) = @_;
    $options ||= {};
    _string_to_numeric($events);
    return YAML::LibYAML::API::XS::emit_string_events($events, $options);
}

sub emit_file_events {
    my ($file, $events, $options) = @_;
    $options ||= {};
    _string_to_numeric($events);
    return YAML::LibYAML::API::XS::emit_file_events($file, $events, $options);
}

sub emit_filehandle_events {
    my ($fh, $events, $options) = @_;
    $options ||= {};
    _string_to_numeric($events);
    return YAML::LibYAML::API::XS::emit_filehandle_events($fh, $events, $options);
}

sub _numeric_to_string {
    my ($events) = @_;
    for my $event (@$events) {
        if ($event->{name} eq 'scalar_event') {
            $event->{style} = $scalar_styles[ $event->{style} ];
        }
        elsif ($event->{name} eq 'sequence_start_event') {
            $event->{style} = $sequence_styles[ $event->{style} ];
        }
        elsif ($event->{name} eq 'mapping_start_event') {
            $event->{style} = $mapping_styles[ $event->{style} ];
        }
    }
}

sub _string_to_numeric {
    my ($events) = @_;
    for my $event (@$events) {
        if ($event->{name} eq 'scalar_event') {
            $event->{style} = $scalar_styles{ $event->{style} };
        }
        elsif ($event->{name} eq 'sequence_start_event') {
            $event->{style} = $sequence_styles{ $event->{style} };
        }
        elsif ($event->{name} eq 'mapping_start_event') {
            $event->{style} = $mapping_styles{ $event->{style} };
        }
    }
}

1;

__END__