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Edit File : Literal.pm \| Size : 2.04 KB
# $Id$ # # This is free software, you may use it and distribute it under the same terms as # Perl itself. # # Copyright 2001-2003 AxKit.com Ltd., 2002-2006 Christian Glahn, 2006-2009 Petr Pajas # # package XML::LibXML::Literal; use XML::LibXML::Boolean; use XML::LibXML::Number; use strict; use warnings; use vars qw ($VERSION); $VERSION = "2.0210"; # VERSION TEMPLATE: DO NOT CHANGE use overload '""' => \&value, 'cmp' => \&cmp; sub new { my $class = shift; my ($string) = @_; # $string =~ s/"/"/g; # $string =~ s/'/'/g; bless \$string, $class; } sub as_string { my $self = shift; my $string = $$self; $string =~ s/'/'/g; return "'$string'"; } sub as_xml { my $self = shift; my $string = $$self; return "<Literal>$string</Literal>\n"; } sub value { my $self = shift; $$self; } sub cmp { my $self = shift; my ($cmp, $swap) = @_; if ($swap) { return $cmp cmp $$self; } return $$self cmp $cmp; } sub evaluate { my $self = shift; $self; } sub to_boolean { my $self = shift; return (length($$self) > 0) ? XML::LibXML::Boolean->True : XML::LibXML::Boolean->False; } sub to_number { return XML::LibXML::Number->new($_[0]->value); } sub to_literal { return $_[0]; } sub string_value { return $_[0]->value; } 1; __END__ =head1 NAME XML::LibXML::Literal - Simple string values. =head1 DESCRIPTION In XPath terms a Literal is what we know as a string. =head1 API =head2 new($string) Create a new Literal object with the value in $string. Note that " and ' will be converted to " and ' respectively. That is not part of the XPath specification, but I consider it useful. Note though that you have to go to extraordinary lengths in an XML template file (be it XSLT or whatever) to make use of this: <xsl:value-of select=""I'm feeling &quot;sad&quot;""/> Which produces a Literal of: I'm feeling "sad" =head2 value() Also overloaded as stringification, simply returns the literal string value. =head2 cmp($literal) Returns the equivalent of perl's cmp operator against the given $literal. =cut Back

Edit File : Literal.pm | Size : 2.04 KB

# $Id$
#
# This is free software, you may use it and distribute it under the same terms as
# Perl itself.
#
# Copyright 2001-2003 AxKit.com Ltd., 2002-2006 Christian Glahn, 2006-2009 Petr Pajas
#
#

package XML::LibXML::Literal;

use XML::LibXML::Boolean;
use XML::LibXML::Number;

use strict;
use warnings;

use vars qw ($VERSION);
$VERSION = "2.0210"; # VERSION TEMPLATE: DO NOT CHANGE

use overload
		'""' => \&value,
		'cmp' => \&cmp;

sub new {
	my $class = shift;
	my ($string) = @_;

#	$string =~ s/&quot;/"/g;
#	$string =~ s/&apos;/'/g;

bless \$string, $class;
}

sub as_string {
	my $self = shift;
	my $string = $$self;
	$string =~ s/'/&apos;/g;
	return "'$string'";
}

sub as_xml {
    my $self = shift;
    my $string = $$self;
    return "<Literal>$string</Literal>\n";
}

sub value {
	my $self = shift;
	$$self;
}

sub cmp {
	my $self = shift;
	my ($cmp, $swap) = @_;
	if ($swap) {
		return $cmp cmp $$self;
	}
	return $$self cmp $cmp;
}

sub evaluate {
	my $self = shift;
	$self;
}

sub to_boolean {
	my $self = shift;
	return (length($$self) > 0) ? XML::LibXML::Boolean->True : XML::LibXML::Boolean->False;
}

sub to_number { return XML::LibXML::Number->new($_[0]->value); }
sub to_literal { return $_[0]; }

sub string_value { return $_[0]->value; }

1;
__END__

=head1 NAME

XML::LibXML::Literal - Simple string values.

=head1 DESCRIPTION

In XPath terms a Literal is what we know as a string.

=head1 API

=head2 new($string)

Create a new Literal object with the value in $string. Note that &quot; and
&apos; will be converted to " and ' respectively. That is not part of the XPath
specification, but I consider it useful. Note though that you have to go
to extraordinary lengths in an XML template file (be it XSLT or whatever) to
make use of this:

<xsl:value-of select="&quot;I'm feeling &amp;quot;sad&amp;quot;&quot;"/>

Which produces a Literal of:

I'm feeling "sad"

=head2 value()

Also overloaded as stringification, simply returns the literal string value.

=head2 cmp($literal)

Returns the equivalent of perl's cmp operator against the given $literal.

=cut

Back