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t/000-report-versions.t  view on Meta::CPAN

#!perl
use warnings;
use strict;
use Test::More 0.94;

# Include a cut-down version of YAML::Tiny so we don't introduce unnecessary
# dependencies ourselves.

package Local::YAML::Tiny;

use strict;
use Carp 'croak';

# UTF Support?
sub HAVE_UTF8 () { $] >= 5.007003 }
BEGIN {
	if ( HAVE_UTF8 ) {
		# The string eval helps hide this from Test::MinimumVersion
		eval "require utf8;";
		die "Failed to load UTF-8 support" if $@;
	}

	# Class structure
	require 5.004;
	$YAML::Tiny::VERSION   = '1.40';

	# Error storage
	$YAML::Tiny::errstr    = '';
}

# Printable characters for escapes
my %UNESCAPES = (
	z => "\x00", a => "\x07", t    => "\x09",
	n => "\x0a", v => "\x0b", f    => "\x0c",
	r => "\x0d", e => "\x1b", '\\' => '\\',
);


#####################################################################
# Implementation

# Create an empty YAML::Tiny object
sub new {
	my $class = shift;
	bless [ @_ ], $class;
}

# Create an object from a file
sub read {
	my $class = ref $_[0] ? ref shift : shift;

	# Check the file
	my $file = shift or return $class->_error( 'You did not specify a file name' );
	return $class->_error( "File '$file' does not exist" )              unless -e $file;
	return $class->_error( "'$file' is a directory, not a file" )       unless -f _;
	return $class->_error( "Insufficient permissions to read '$file'" ) unless -r _;

	# Slurp in the file
	local $/ = undef;
	local *CFG;
	unless ( open(CFG, $file) ) {
		return $class->_error("Failed to open file '$file': $!");
	}
	my $contents = <CFG>;
	unless ( close(CFG) ) {
		return $class->_error("Failed to close file '$file': $!");
	}

	$class->read_string( $contents );
}

# Create an object from a string
sub read_string {
	my $class  = ref $_[0] ? ref shift : shift;
	my $self   = bless [], $class;
	my $string = $_[0];
	unless ( defined $string ) {
		return $self->_error("Did not provide a string to load");
	}

	# Byte order marks
	# NOTE: Keeping this here to educate maintainers
	# my %BOM = (
	#     "\357\273\277" => 'UTF-8',
	#     "\376\377"     => 'UTF-16BE',
	#     "\377\376"     => 'UTF-16LE',
	#     "\377\376\0\0" => 'UTF-32LE'
	#     "\0\0\376\377" => 'UTF-32BE',
	# );
	if ( $string =~ /^(?:\376\377|\377\376|\377\376\0\0|\0\0\376\377)/ ) {
		return $self->_error("Stream has a non UTF-8 BOM");