File Coverage

blib/lib/Tags/Output/Raw.pm

Criterion	Covered	Total	%
statement	179	180	99.4
branch	51	52	98.0
condition	17	20	85.0
subroutine	24	24	100.0
pod	2	2	100.0
total	273	278	98.2

package Tags::Output::Raw;

use base qw(Tags::Output);
use strict;
use warnings;

use Error::Pure qw(err);
use List::MoreUtils qw(none);
use Readonly;
use Tags::Utils::Preserve;
use Tags::Utils qw(encode_attr_entities encode_char_entities);

# Constants.
Readonly::Scalar my $EMPTY_STR => q{};
Readonly::Scalar my $LAST_INDEX => -1;
Readonly::Scalar my $SPACE => q{ };

our $VERSION = 0.12;

# Finalize Tags output.
sub finalize {
	my $self = shift;

	# XML mode.
	if ($self->{'xml'}) {

		# Add ending of all opened tags.
		while (@{$self->{'printed_tags'}}) {
			$self->put(['e', $self->{'printed_tags'}->[0]]);
		}

	# SGML mode.
	} else {

		# Flush tmp code.
		if (scalar @{$self->{'tmp_code'}}) {
			$self->_flush_tmp('>');
		}
		$self->{'printed_tags'} = [];
	}
	return;
}

# Resets internal variables.
sub reset {
	my $self = shift;

	# Comment flag.
	$self->{'comment_flag'} = 0;

	# Flush code.
	$self->_reset_flush;

	# Tmp code.
	$self->{'tmp_code'} = [];
	$self->{'tmp_comment_code'} = [];

	# Printed tags.
	$self->{'printed_tags'} = [];

	# Preserved object.
	$self->{'preserve_obj'} = Tags::Utils::Preserve->new(
		'preserved' => $self->{'preserved'},
	);

	return;
}

# Check parameters to rigth values.
sub _check_params {
	my $self = shift;

	# Check params from SUPER.
	$self->SUPER::_check_params();

	# Check 'attr_delimeter'.
	if ($self->{'attr_delimeter'} ne q{"}
		&& $self->{'attr_delimeter'} ne q{'}) {

		err "Bad attribute delimeter '$self->{'attr_delimeter'}'.";
	}

	return;
}

# Default parameters.
sub _default_parameters {
	my $self = shift;

	# Default parameters from SUPER.
	$self->SUPER::_default_parameters();

	# Attribute callback.
	$self->{'attr_callback'} = \&encode_attr_entities;

	# Attribute delimeter.
	$self->{'attr_delimeter'} = q{"};

	# CDATA callback.
	$self->{'cdata_callback'} = undef;

	# Data callback.
	$self->{'data_callback'} = \&encode_char_entities;

	# No data callback.
	$self->{'no_data_callback'} = ['script', 'style'];

	# No simple tags.
	$self->{'no_simple'} = [];

	# Preserved tags.
	$self->{'preserved'} = [];

	# Raw data callback.
	$self->{'raw_callback'} = undef;

	# XML output.
	$self->{'xml'} = 0;

	return;
}

# Flush $self->{'tmp_code'}.
sub _flush_tmp {
	my ($self, $string) = @_;

	# Added string.
	push @{$self->{'tmp_code'}}, $string;

	# Detect preserve mode.
	my ($pre, $pre_pre) = $self->{'preserve_obj'}->get;
	if ($pre && ! $pre_pre) {
		push @{$self->{'tmp_code'}}, "\n";
	}

	# Flush comment code before tag.
	if ($self->{'comment_flag'} == 0
		&& scalar @{$self->{'tmp_comment_code'}}) {

		$self->{'flush_code'} .= join $EMPTY_STR,
			@{$self->{'tmp_comment_code'}},
			@{$self->{'tmp_code'}};

	# After tag.
	} else {
		$self->{'flush_code'} .= join $EMPTY_STR,
			@{$self->{'tmp_code'}},
			@{$self->{'tmp_comment_code'}};
	}

	# Resets tmp_codes.
	$self->{'tmp_code'} = [];
	$self->{'tmp_comment_code'} = [];

	return;
}

# Attributes.
sub _put_attribute {
	my ($self, $attr, $value) = @_;

	# Check to 'tmp_code'.
	if (! @{$self->{'tmp_code'}}) {
		err 'Bad tag type \'a\'.';
	}

	# Check to pairs in XML mode.
	if ($self->{'xml'} && ! defined $value) {
		err "In XML mode must be a attribute '$attr' value.";
	}

	# Process data callback.
	my @attr = ($attr);
	if (defined $value) {
		push @attr, $value;
	}
	$self->_process_callback(\@attr, 'attr_callback');

	# Process attribute.
	my $full_attr = $attr[0];
	if (defined $attr[1]) {
		$full_attr .= q{=}.$self->{'attr_delimeter'}.
			$attr[1].$self->{'attr_delimeter'};
	}
	push @{$self->{'tmp_code'}}, $SPACE, $full_attr;

	# Reset comment flag.
	$self->{'comment_flag'} = 0;

	return;
}

# Begin of tag.
sub _put_begin_of_tag {
	my ($self, $tag) = @_;

	# Flush tmp code.
	if (scalar @{$self->{'tmp_code'}}) {
		$self->_flush_tmp('>');
	}

	# TODO Add checking of XML element name.
#	if ($self->{'xml'} && _check(element_name)) {
#		err 'This is not XML format.';
#	}

	# Push begin of tag to tmp code.
	push @{$self->{'tmp_code'}}, "<$tag";

	# Added tag to printed tags.
	unshift @{$self->{'printed_tags'}}, $tag;

	$self->{'preserve_obj'}->begin($tag);

	return;
}

# CData.
sub _put_cdata {
	my ($self, @cdata) = @_;

	# Flush tmp code.
	if (scalar @{$self->{'tmp_code'}}) {
		$self->_flush_tmp('>');
	}

	# Added begin of cdata section.
	unshift @cdata, '

	# Check to bad cdata.
	if (join($EMPTY_STR, @cdata) =~ /]]>$/ms) {
		err 'Bad CDATA data.'
	}

	# Added end of cdata section.
	push @cdata, ']]>';

	# Process data callback.
	$self->_process_callback(\@cdata, 'cdata_callback');

	# To flush code.
	$self->{'flush_code'} .= join $EMPTY_STR, @cdata;

	return;
}

# Comment.
sub _put_comment {
	my ($self, @comments) = @_;

	# Comment string.
	unshift @comments, '';
	} else {
		push @comments, '-->';
	}

	# Process comment.
	my $comment = join $EMPTY_STR, @comments;
	if (scalar @{$self->{'tmp_code'}}) {
		push @{$self->{'tmp_comment_code'}}, $comment;

		# Flag, that means comment is last.
		$self->{'comment_flag'} = 1;
	} else {
		$self->{'flush_code'} .= $comment;
	}

	return;
}

# Data.
sub _put_data {
	my ($self, @character_data) = @_;

	# Flush tmp code.
	if (scalar @{$self->{'tmp_code'}}) {
		$self->_flush_tmp('>');
	}

	# Process data callback.
	if (none { $_ eq $self->{'printed_tags'}->[0] } @{$self->{'no_data_callback'}}) {
		$self->_process_callback(\@character_data, 'data_callback');
	}

	# To flush code.
	$self->{'flush_code'} .= join $EMPTY_STR, @character_data;

	return;
}

# End of tag.
sub _put_end_of_tag {
	my ($self, $tag) = @_;

	if ($self->{'xml'}) {
		my $printed = shift @{$self->{'printed_tags'}};
		if (! defined $printed) {
			err "Ending bad tag: '$tag' doesn't begin.";
		} elsif ($printed ne $tag) {
			err "Ending bad tag: '$tag' in block of ".
				"tag '$printed'.";
		}
	}

	# Tag can be simple.
	if ($self->{'xml'} && (! scalar @{$self->{'no_simple'}}
		|| none { $_ eq $tag } @{$self->{'no_simple'}})) {

		if (scalar @{$self->{'tmp_code'}}) {
			if (scalar @{$self->{'tmp_comment_code'}}
				&& $self->{'comment_flag'} == 1) {

				$self->_flush_tmp('>');
				$self->{'flush_code'} .= "";
			} else {
				$self->_flush_tmp(' />');
			}
		} else {
			$self->{'flush_code'} .= "";
		}

	# Tag cannot be simple.
	} else {
		if (scalar @{$self->{'tmp_code'}}) {
			$self->_flush_tmp('>');
		}
		$self->{'flush_code'} .= "";
	}
	$self->{'preserve_obj'}->end($tag);

	return;
}

# Instruction.
sub _put_instruction {
	my ($self, $target, $code) = @_;

	# Flush tmp code.
	if (scalar @{$self->{'tmp_code'}}) {
		$self->_flush_tmp('>');
	}

	# To flush code.
	$self->{'flush_code'} .= '
	if ($code) {
		$self->{'flush_code'} .= $SPACE.$code;
	}
	$self->{'flush_code'} .= '?>';

	return;
}

# Raw data.
sub _put_raw {
	my ($self, @raw_data) = @_;

	# Flush tmp code.
	if (scalar @{$self->{'tmp_code'}}) {
		$self->_flush_tmp('>');
	}

	# Process data callback.
	$self->_process_callback(\@raw_data, 'raw_callback');

	# To flush code.
	$self->{'flush_code'} .= join $EMPTY_STR, @raw_data;

	return;
}

# Reset flush code.
sub _reset_flush {
	my $self = shift;

	$self->{'flush_code'} = $EMPTY_STR;

	return;
}

1;

__END__