File Coverage

blib/lib/Coerce/Types/Standard.pm

Criterion	Covered	Total	%
statement	185	228	81.1
branch	32	54	59.2
condition	10	28	35.7
subroutine	58	62	93.5
pod	2	32	6.2
total	287	404	71.0

package Coerce::Types::Standard;

use 5.006;
use strict;
use warnings;
use Scalar::Util qw/blessed reftype refaddr/;

use parent 'Types::Standard';

our @EXPORT_OK = ( Types::Standard->type_names );

our $meta = __PACKAGE__->meta;
our $VERSION = '0.000005';

our (%entity, %recurse, %compare, $esc, $unesc, $path);
BEGIN {
	%entity = (
		encode => {
			q{&} => q{&}, q{"} => q{"}, q{'} => q{'}, q{<} => q{<}, q{>} => q{>}
		}
	);
	my @keys = keys %{$entity{encode}};
	$entity{decode} = +{ map {
		$entity{encode}->{$_} => $_
	} @keys };
	$entity{encode}->{regex} = join "|", map { quotemeta($_) } @keys;
	$entity{decode}->{regex} = join "|", map { quotemeta($_) } keys %{$entity{decode}};
	$entity{escape} = +{
		map {
			chr($_) => sprintf("%%%02X", $_)
		} (0..255)
	};
	$entity{unescape} = +{
		map {
			$entity{escape}->{$_} => $_
		} keys %{$entity{escape}}
	};
	$esc = qr/[^A-Za-z0-9\-\._~]/;
	$unesc = qr/[0-9A-Fa-f]{2}/;
	$path = qr|^(([a-z][a-z0-9+\-.]*):(!?\/\/([^\/?#]+))?)?([a-z0-9\-._~%!\$\&'()*+,;=:@\/]*)?(\?[a-z0-9\-._~%!\$\&'()*+,;=:@\/]*)?(#[a-z0-9\-._~%!\$\&'()*+,;=:@\/]*)|;
	%recurse = (
		ARRAY => sub { return map { recurse($_, $_[1], $_[2]) } @{ $_[0] } },
		HASH => sub {  do { $_[0]->{$_} = recurse($_[0]->{$_}, $_[1], $_[2]) } for keys %{ $_[0] }; $_[0] },
		SCALAR => sub { ${$_[0]} =~ m/^[0-9.]+$/g ? $_[0] : do { ${$_[0]} =~ s/^(.*)$/recurse(${$_[1]})/e; $_[0]; }; },
	);
	%compare = (
		ARRAY => sub {
			my $recurse = shift;
			my @length = sort { $a < $b } map { scalar @{ $_ } } (@_);
			for my $i (0 .. $length[0] - 1) { compare($recurse, map { $_->[$i] } @_) or return 0; }
			1;
		},
		HASH => sub {
			my $recurse = shift;
			for my $k (combine_keys(@_)) {
				compare($recurse, map { $_->{$k} } @_) or return 0;
			}
			1;
		},
		SCALAR => sub { compare(shift, map {${$_}} @_) },
		MAGIC => sub { my %t; shift; map { $t{$_}++ } @_; scalar keys %t == 1; },
	);
}
{
	# all powerfull
	no strict 'refs';
	my $counter = 0;
	*{"Type::Tiny::by"} = sub {
		my ($pn, $parent, $hide, $act) = ($_[0]->name, shift, shift);
		$act = ref $hide ? sub { compare(\%compare, @_) } : sub { $_[0] =~ m/$_[1]/; };
		my $self = do {
			$_ =~ m/^$pn/ && exists $meta->{types}->{$_}->{abuse}
				&& $act->($meta->{types}->{$_}->{abuse}, $hide)
					and return $meta->{types}->{$_} foreach $meta->type_names;
			undef;
		} || $meta->add_type({
			name => $parent->name . $counter++,
			parent => $parent->{abuse_parent} && $parent->{abuse_parent}->($hide) || $parent,
			coercion => $parent->{abuse}->($hide),
			abuse => $hide,
			($parent->{abuse_constraint} ? (constraint => $parent->{abuse_constraint}->($hide)) : ())
		});
		return $self;
	};
}

$meta->add_type({
	name => 'StrToArray',
	parent => scalar $meta->ArrayRef,
	abuse => \&_strToArray
});

sub _strToArray {
	my $hide = shift;
	return sub {
		defined $_[0] ? [split $hide, $_[0]] : $_[0];
	}
}

$meta->add_type({
	name => 'StrToHash',
	parent => scalar $meta->HashRef,
	abuse => \&_strToHash
});

sub _strToHash {
	my $hide = shift;
	return sub {
		defined $_[0] ? +{split $hide, $_[0]} : $_[0];
	}
}

$meta->add_type({
	name => 'StrSR',
	parent => scalar $meta->Str,
	abuse_constraint => \&search_replace_constraint,
	abuse => \&search_replace
});

sub search_replace_constraint {
	my ($sr) = (quotemeta($_[0][0]));
	return sub {
		my $str = shift;
		! ($str =~ m/$sr/);
	};
}

sub search_replace {
	my (@sr) = (quotemeta($_[0][0]), $_[0][1]);
	return sub {
		my $str = shift;
		ref $sr[1] eq 'CODE'
			? $str =~ s/($sr[0])/$sr[1]->($1)/ego
			: $str =~ s/($sr[0])/$sr[1]/g;
		return $str;
	};
}



$meta->add_type({
	name => 'ArrayToHash',
	parent => scalar $meta->HashRef,
	coercion => sub {
		+{
			@{ $_[0] }
		};
	},
	abuse => \&_hash
});

sub _hash {
	my $hide = sprintf "array_to_hash_%s", shift;
	return \&$hide;
}

# issues with the following is that arrays are not always flat *|o|*
sub array_to_hash_reverse {
	my @array = @{$_[0]};
	my %hash;
	while (@array) {
		my ($even, $odd) = (shift @array, shift @array);
		$hash{$odd} = $even
	}
	return \%hash;
}

sub array_to_hash_odd {
	my @array = @{$_[0]};
	return +{ (map {$array[$_]} grep {$_ & 1} 1 .. scalar @array - 1) };
}

sub array_to_hash_even {
	my @array = @{$_[0]};
	return +{ (map {$array[$_]} grep {not $_ & 1} 0 .. scalar @array - 1) };
}

sub array_to_hash_flat {
	return +{ _flat($_[0]) };
}

sub array_to_hash_merge {
	return +{
		map { %{$_} } grep { ref $_ eq 'HASH' } @{$_}
	}
}

$meta->add_type({
	name => 'HashToArray',
	parent => scalar $meta->ArrayRef,
	coercion => sub {
		defined $_[0] ? [
			map { $_, $_[0]->{$_} } sort keys %{ $_[0] }
		] : $_[0];
	},
	abuse => \&_arrays
});

sub _arrays {
	my $hide = sprintf ('hash_to_array_%s', shift);
	\&$hide;
}

sub hash_to_array_keys {
	return [ sort keys %{ $_[0] } ];
}

sub hash_to_array_values {
	return [ sort values %{ $_[0] } ];
}

sub hash_to_array_flat {
	return [_flat($_[0])];
}

sub _flat {
	my @lazy;
	my %r = (
		ARRAY => sub { map { recurse($_[0], $_) } @{ $_[1] } },
		HASH => sub { do { recurse($_[0], $_) && recurse($_[0], $_[1]->{$_}); } for sort keys %{ $_[1] }; },
		SCALAR => sub { recurse($_[0], ${$_[1]}) },
		MAGIC => sub { push @lazy, $_[1] },
	);
	recurse(\%r, $_[0]);
	return @lazy;
}

$meta->add_type({
	name => 'HTML',
	parent => scalar $meta->Str,
	abuse_constraint => \&_html_constraint,
	abuse => \&_html
});

sub _html_constraint {
	my $hide = sprintf('constraint_%s', shift);
	\&$hide;
}

sub _html {
	my $hide = sprintf('%s', shift);
	\&$hide;
}

sub constraint_encode_entity {
	my ($str, %encode) = (shift,  %{ $entity{encode} });
	$str =~ m/($encode{regex})(?![a-z#]+;)/ ? 0 : 1;
}

sub encode_entity {
	my ($str, %encode) = (shift, %{ $entity{encode} });
	$str =~ s/($encode{regex})/$encode{$1}/eg;
	return $str;
}

sub constraint_decode_entity {
	shift =~ m/&([a-z#]+;)/ ? 0 : 1;
}

sub decode_entity {
	my ($str, %decode) = (shift, %{ $entity{decode} });
	$str =~ s/($decode{regex})/$decode{$1}/eg;
	return $str;
}

$meta->add_type({
	name => 'URI',
	parent => scalar $meta->Object,
	constraint => sub {
		my $obj = ref $_[0];
		$obj =~ m!^URI! ? 1 : 0;
	},
	coercion => sub {
		require URI;
		my @args = ref $_[0] ? @{ $_[0] } : $_[0];
		my $queryForm = pop @args if ref $args[scalar @args - 1] eq 'HASH';
		my $uri = URI->new(@args);
		$uri->query_form($queryForm) if $queryForm;
		return $uri;
	},
	abuse_parent => \&_uri_change,
	abuse_constraint => \&_uri_constraint,
	abuse => \&_uri
});

sub _uri_change {
	my $hide = shift;
	return scalar $meta->Str if $hide =~ m/^escape|unescape|schema|host|path|query_string|fragment$/;
	return scalar $meta->HashRef;
}

sub _uri_constraint {
	my $hide = sprintf "constraint_uri_%s", shift;
	\&$hide;
}

# I don't know why, just don't ask
sub constraint_uri_schema {
	$_[0] =~ m/$path/;
	$4 || $5 || $6 || $7 ? 0 : 1;
}

sub constraint_uri_host {
	$_[0] =~ m/$path/;
	$2 || $5 || $6 || $7 ? 0 : 1;
}

sub constraint_uri_path {
	$_[0] =~ m/$path/;
	$2 || $4 || $6 || $7 ? 0 : 1;
}

sub constraint_uri_query_string {
	$_[0] =~ m/$path/;
	$2 || $4 || $5 || $7 ? 0 : 1;
}

sub constraint_uri_fragment {
	$_[0] =~ m/$path/;
	$2 || $4 || $5 || $6 ? 0 : 1;
}

sub constraint_uri_query_form {
	ref $_[0] eq 'HASH' ? 1 : 0;
}

sub constraint_uri_escape {
	$_[0] =~ m/($esc)(?!$unesc)/ ? 0 : 1;
}

sub constraint_uri_unescape {
	$_[0] =~ m/%$unesc/ ? 0 : 1;
}

sub _uri {
	my $hide = sprintf "uri_%s", shift;
	\&$hide;
}

sub uri_schema {
	$_[0] =~ m/$path/;
	return $2;
}

sub uri_host {
	$_[0] =~ m/$path/;
	return $4;
}

sub uri_path {
	$_[0] =~ m/$path/;
	return $5;
}

sub uri_query_string {
	$_[0] =~ m/$path/;
	return uri_unescape($6);
}

sub uri_fragment {
	$_[0] =~ m/$path/;
	return $7;
}

sub uri_query_form {
	$_[0] =~ m/$path/;
	my $query_string = uri_unescape($6);
	$query_string =~ s,^\?,,;
	return +{
		split '=', $query_string
	};
}

sub uri_escape {
	my ($string, %escape) = (shift, %{ $entity{escape} });
	$string =~ s/($esc)/$escape{$1}/eg;
	$string;
}

sub uri_unescape {
	my ($string, %unescape) = (shift, %{ $entity{unescape} });
	$string =~ s/(%$unesc)/$unescape{$1}/eg;
	$string;
}

$meta->add_type({
	name => 'Count',
	parent => scalar $meta->Str,
	abuse_constraint => \&_count_constraint,
	abuse => \&_html,
	coercion => sub {
		my $ref = ref $_[0];
		return $ref eq 'ARRAY' ? scalar @{$_[0]} : scalar keys %{$_[0]};
	},
});

$meta->add_type({
	name => 'JSON',
	parent => scalar $meta->Any,
	constraint => sub {
		my $ref = ref $_[0];
		$ref ? 1 : 0;
	},
	coercion => sub {
		require JSON;
		my $json = JSON->new;
		return $json->decode($_[0]);
	},
	abuse_parent => \&_json_change,
	abuse => \&_json
});

sub _json_change {
	my $ref = ref $_[0];
 	return unless ! $ref || $ref eq 'ARRAY';
	my $key = $ref eq 'ARRAY' ? $_[0]->[0] : $_[0];
	my $type = eval{ $meta->$key };
	$type ? shift @{$_[0]} : do { $type = $meta->Str if $key eq 'encode'; };
	$type;
}

sub _json {
	require JSON;
	my $json = JSON->new;
	my $ref = ref $_[0];
	my $type = $ref ? $_[0]->[0] : $_[0];
	map { $json = $json->$_ } @{ $_[0]->[1] } if ( $ref && ref $_[0]->[1] eq 'ARRAY' );
	return sub {  $json->$type($_[0]) };
}

sub compare {
	my ($recurse, %same) = shift;
	$same{reftype $_ || 'MAGIC'}++ for @_;
	return 0 if scalar keys %same != 1;
	return $recurse->{[(keys %same)]->[0]}->($recurse, @_);
}

sub recurse {
	my ($recurse, $ref) = shift;
	$ref = reftype($_[0]) || 'MAGIC';
	$recurse->{$ref}->($recurse, $_[0]) if (exists $recurse->{$ref});
	$_[0];
}

# TODO a little documentations
# TBC .....

__PACKAGE__->meta->make_immutable;

1;

__END__