/usr/share/perl5/Excel/Writer/XLSX/Package/XMLwriterSimple.pm is in libexcel-writer-xlsx-perl 0.47-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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###############################################################################
#
# XMLwriterSimple - Light weight re-implementation of XML::Writer.
#
# Used in conjunction with Excel::Writer::XLSX.
#
# Copyright 2000-2012, John McNamara, jmcnamara@cpan.org
#
# Documentation after __END__
#
# perltidy with the following options: -mbl=2 -pt=0 -nola
use 5.008002;
use strict;
use warnings;
use Exporter;
use Carp;
our @ISA = qw(Exporter);
our $VERSION = '0.47';
#
# NOTE: this module is a light weight re-implementation of XML::Writer. See
# the Pod docs below for a full explanation. The methods implemented below
# are the main XML::Writer methods used by Excel::Writer::XLSX.
# See XML::Writer for more detailed information on these methods.
#
###############################################################################
#
# new()
#
# Constructor.
#
sub new {
my $class = shift;
my $self = { _fh => shift };
bless $self, $class;
return $self;
}
###############################################################################
#
# xmlDecl()
#
# Write the XML declaration at the start of an XML document.
#
sub xmlDecl {
my $self = shift;
local $\ = undef; # Protect print from -l on commandline.
print { $self->{_fh} }
qq(<?xml version="1.0" encoding="UTF-8" standalone="yes"?>\n);
}
###############################################################################
#
# startTag()
#
# Write an XML start tag with optional attributes.
#
sub startTag {
my $self = shift;
my $tag = shift;
my @attributes = @_;
local $\ = undef; # Protect print from -l on commandline.
print { $self->{_fh} } "<$tag";
while ( @attributes ) {
my $key = shift @attributes;
my $value = shift @attributes;
$value = _escape_xml_chars( $value );
print { $self->{_fh} } qq( $key="$value");
}
print { $self->{_fh} } ">";
}
###############################################################################
#
# endTag()
#
# Write an XML end tag.
#
sub endTag {
my $self = shift;
my $tag = shift;
local $\ = undef; # Protect print from -l on commandline.
print { $self->{_fh} } "</$tag>";
}
###############################################################################
#
# emptyTag()
#
# Write an empty XML tag with optional attributes.
#
sub emptyTag {
my $self = shift;
my $tag = shift;
my @attributes = @_;
local $\ = undef; # Protect print from -l on commandline.
print { $self->{_fh} } "<$tag";
while ( @attributes ) {
my $key = shift @attributes;
my $value = shift @attributes;
$value = _escape_xml_chars( $value );
print { $self->{_fh} } qq( $key="$value");
}
# Note extra space before closing tag like XML::Writer.
print { $self->{_fh} } " />";
}
###############################################################################
#
# dataElement()
#
# Write an XML element containing data with optional attributes.
# XML characters in the data are escaped.
#
sub dataElement {
my $self = shift;
my $tag = shift;
my $data = shift;
my @attributes = @_;
local $\ = undef; # Protect print from -l on commandline.
print { $self->{_fh} } "<$tag";
while ( @attributes ) {
my $key = shift @attributes;
my $value = shift @attributes;
$value = _escape_xml_chars( $value );
print { $self->{_fh} } qq( $key="$value");
}
$data = _escape_xml_chars( $data );
print { $self->{_fh} } ">";
print { $self->{_fh} } $data;
print { $self->{_fh} } "</$tag>";
}
###############################################################################
#
# characters()
#
# For compatibility with XML::Writer only.
#
sub characters {
my $self = shift;
my $data = shift;
local $\ = undef; # Protect print from -l on commandline.
$data = _escape_xml_chars( $data );
print { $self->{_fh} } $data;
}
###############################################################################
#
# end()
#
# For compatibility with XML::Writer only.
#
sub end {
my $self = shift;
local $\ = undef; # Protect print from -l on commandline.
print { $self->{_fh} } "\n";
}
###############################################################################
#
# getOutput()
#
# Return the output filehandle.
#
sub getOutput {
my $self = shift;
return $self->{_fh};
}
###############################################################################
#
# _escape_xml_chars()
#
# Escape XML characters.
#
sub _escape_xml_chars {
my $str = defined $_[0] ? $_[0] : '';
return $str if $str !~ m/[&<>"]/;
for ( $str ) {
s/&/&/g;
s/</</g;
s/>/>/g;
s/"/"/g;
}
return $str;
}
1;
__END__
=pod
=head1 NAME
XMLwriterSimple - Light weight re-implementation of XML::Writer.
This module is used internally by L<Excel::Writer::XLSX>.
=head1 DESCRIPTION
This module is used by L<Excel::Writer::XLSX> for writing XML documents. It is a light weight re-implementation of L<XML::Writer>.
XMLwriterSimple is approximately twice as fast as L<XML::Writer>. This speed is achieved at the expense of error and correctness checking. In addition not all of the L<XML::Writer> methods are implemented. As such, XMLwriterSimple is not recommended for use outside of Excel::Writer::XLSX.
If required XMLwriterSimple can be overridden and XML::Writer can be used in its place by setting an C<_EXCEL_WRITER_XLSX_USE_XML_WRITER> environmental variable:
export _EXCEL_WRITER_XLSX_USE_XML_WRITER=1
perl example.pl
Or for one off programs:
_EXCEL_WRITER_XLSX_USE_XML_WRITER=1 perl example.pl
This technique is used for verifying the test suite with both XMLwriterSimple and XML::Writer:
_EXCEL_WRITER_XLSX_USE_XML_WRITER=1 prove -l -r t
=head1 SEE ALSO
L<XML::Writer>.
=head1 AUTHOR
John McNamara jmcnamara@cpan.org
=head1 COPYRIGHT
© MM-MMXII, John McNamara.
All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself.
=head1 LICENSE
Either the Perl Artistic Licence L<http://dev.perl.org/licenses/artistic.html> or the GPL L<http://www.opensource.org/licenses/gpl-license.php>.
=head1 DISCLAIMER OF WARRANTY
See the documentation for L<Excel::Writer::XLSX>.
=cut
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