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package XML::Serializer;
use strict;
my $root_element = "root";
my $indent = " ";
#my $XML_HEADER = << "XMLHEADER";
#<?xml version="1.0" encoding="__CHARSET__"?>
#<?xml-stylesheet type="text/xsl" href="__XSLT__" ?>
#XMLHEADER
my $XML_HEADER = << "XMLHEADER";
<?xml version="1.0" encoding="__CHARSET__"?>
XMLHEADER
sub WITH_HEADER {
return 1;
}
sub new {
my ($this, $data, $root_name, $xslt) = @_;
my %fields = (
_charset => "utf-8",
_data => "",
_output => "",
_root_name => $root_name ? $root_name : "root",
_xslt => $xslt ? $xslt : ""
);
if (defined $data) {
$fields{_data} = $data;
}
return bless \%fields, $this;
}
sub set_root_name {
my ($this, $root_name) = @_;
$this->{_root_name} = $root_name;
}
sub set_data {
my ($this, $data) = @_;
$this->{_data} = $data;
}
sub set_charset {
my ($this, $charset) = @_;
$this->{_charset} = $charset;
}
sub set_xslt {
my ($this, $xslt) = @_;
$this->{_xslt} = $xslt;
}
sub to_string{
my ($this, $header) = @_;
if ($header) {
$this->{_output} = &_make_xml_header($this->{_charset}, $this->{_xslt});
}
$this->{_output} .= &_to_string($this->{_data}, $this->{_root_name});
}
sub to_formatted{
my ($this, $header) = @_;
if ($header) {
$this->{_output} = &_make_xml_header($this->{_charset}, $this->{_xslt});
}
$this->{_output} .= &_to_formatted($this->{_root_name}, $this->{_data});
}
sub _make_xml_header {
my $header = $XML_HEADER;
$header =~ s/__CHARSET__/$_[0]/;
$header =~ s/__XSLT__/$_[1]/;
return $header;
}
sub _to_string {
my ($obj, $name) = @_;
my $output = "";
if (ref($obj) eq "HASH") {
my $attr_list = "";
my $tmp_mid = "";
foreach (sort keys %$obj) {
if ($_ =~ /^@/) {
$attr_list = &_to_string($_, $obj->{$_});
}
$tmp_mid .= &_to_string($_, $obj->{$_});
}
$output = &_start_node($name, $attr_list) . $tmp_mid . &_end_node($name);
}
elsif (ref($obj) eq "ARRAY") {
foreach (@$obj) {
$output .= &_to_string($_, $name);
}
}
else {
if ($_ =~ /^@(.+)$/) {
return "$1=\"$obj\" ";
} else {
$output = &_start_node($name) . $obj . &_end_node($name);
}
}
return $output;
}
sub _to_formatted {
my ($name, $obj, $depth) = @_;
# if (!$obj) { $obj = ""; }
if (!defined($depth)) { $depth = 0; }
my $output = "";
if (ref($obj) eq "HASH") {
my $attr_list = "";
my $tmp_mid = "";
foreach (sort keys %$obj) {
if ($_ =~ /^@/) {
$attr_list = &_to_string($_, $obj->{$_});
}
$tmp_mid .= &_to_formatted($_, $obj->{$_}, $depth+1);
}
$output = &_start_node($name, $attr_list, $depth) . "\n" . $tmp_mid . &_end_node($name, $depth);
}
elsif (ref($obj) eq "ARRAY") {
foreach (@$obj) {
$output .= &_to_formatted($name, $_, $depth);
}
}
else {
if ($_ =~ /^@(.+)$/) {
#return "$1=\"$obj\" ";
} else {
$output .= &_start_node($name, "", $depth);
$output .= $obj;
$output .= &_end_node($name);
}
}
return $output;
}
sub _start_node {
my $ret = "";
if (defined $_[2]) {
for(1..$_[2]) { $ret .= $indent; }
}
my $tag = $_[0] ? $_[0] : "";
my $attr = $_[1] ? $_[1] : "";
$ret .= "<$tag $attr>";
return $ret;
}
sub _end_node {
my $ret = "";
if (defined $_[1]) {
for(1..$_[1]) { $ret .= $indent; }
}
if (defined $_[0]) {
$ret .= "</$_[0]>\n";
}
return $ret;
}
1;
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