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[dh-make-perl] / dev / arm / liburi-perl / liburi-perl-1.35.dfsg.1 / URI / WithBase.pm

diff --git a/dev/arm/liburi-perl/liburi-perl-1.35.dfsg.1/URI/WithBase.pm b/dev/arm/liburi-perl/liburi-perl-1.35.dfsg.1/URI/WithBase.pm
new file mode 100644 (file)
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+++ b/dev/arm/liburi-perl/liburi-perl-1.35.dfsg.1/URI/WithBase.pm
@@ -0,0 +1,171 @@
+package URI::WithBase;
+
+use strict;
+use vars qw($AUTOLOAD $VERSION);
+use URI;
+
+$VERSION = "2.19";
+
+use overload '""' => "as_string", fallback => 1;
+
+sub as_string;  # help overload find it
+
+sub new
+{
+    my($class, $uri, $base) = @_;
+    my $ibase = $base;
+    if ($base && ref($base) && UNIVERSAL::isa($base, __PACKAGE__)) {
+       $base = $base->abs;
+       $ibase = $base->[0];
+    }
+    bless [URI->new($uri, $ibase), $base], $class;
+}
+
+sub new_abs
+{
+    my $class = shift;
+    my $self = $class->new(@_);
+    $self->abs;
+}
+
+sub _init
+{
+    my $class = shift;
+    my($str, $scheme) = @_;
+    bless [URI->new($str, $scheme), undef], $class;
+}
+
+sub eq
+{
+    my($self, $other) = @_;
+    $other = $other->[0] if UNIVERSAL::isa($other, __PACKAGE__);
+    $self->[0]->eq($other);
+}
+
+sub AUTOLOAD
+{
+    my $self = shift;
+    my $method = substr($AUTOLOAD, rindex($AUTOLOAD, '::')+2);
+    return if $method eq "DESTROY";
+    $self->[0]->$method(@_);
+}
+
+sub can {                                  # override UNIVERSAL::can
+    my $self = shift;
+    $self->SUPER::can(@_) || (
+      ref($self)
+      ? $self->[0]->can(@_)
+      : undef
+    )
+}
+
+sub base {
+    my $self = shift;
+    my $base  = $self->[1];
+
+    if (@_) { # set
+       my $new_base = shift;
+       # ensure absoluteness
+       $new_base = $new_base->abs if ref($new_base) && $new_base->isa(__PACKAGE__);
+       $self->[1] = $new_base;
+    }
+    return unless defined wantarray;
+
+    # The base attribute supports 'lazy' conversion from URL strings
+    # to URL objects. Strings may be stored but when a string is
+    # fetched it will automatically be converted to a URL object.
+    # The main benefit is to make it much cheaper to say:
+    #   URI::WithBase->new($random_url_string, 'http:')
+    if (defined($base) && !ref($base)) {
+       $base = ref($self)->new($base);
+       $self->[1] = $base unless @_;
+    }
+    $base;
+}
+
+sub clone
+{
+    my $self = shift;
+    my $base = $self->[1];
+    $base = $base->clone if ref($base);
+    bless [$self->[0]->clone, $base], ref($self);
+}
+
+sub abs
+{
+    my $self = shift;
+    my $base = shift || $self->base || return $self->clone;
+    $base = $base->as_string if ref($base);
+    bless [$self->[0]->abs($base, @_), $base], ref($self);
+}
+
+sub rel
+{
+    my $self = shift;
+    my $base = shift || $self->base || return $self->clone;
+    $base = $base->as_string if ref($base);
+    bless [$self->[0]->rel($base, @_), $base], ref($self);
+}
+
+1;
+
+__END__
+
+=head1 NAME
+
+URI::WithBase - URIs which remember their base
+
+=head1 SYNOPSIS
+
+ $u1 = URI::WithBase->new($str, $base);
+ $u2 = $u1->abs;
+
+ $base = $u1->base;
+ $u1->base( $new_base )
+
+=head1 DESCRIPTION
+
+This module provides the C<URI::WithBase> class.  Objects of this class
+are like C<URI> objects, but can keep their base too.  The base
+represents the context where this URI was found and can be used to
+absolutize or relativize the URI.  All the methods described in L<URI>
+are supported for C<URI::WithBase> objects.
+
+The methods provided in addition to or modified from those of C<URI> are:
+
+=over 4
+
+=item $uri = URI::WithBase->new($str, [$base])
+
+The constructor takes an optional base URI as the second argument.
+If provided, this argument initializes the base attribute.
+
+=item $uri->base( [$new_base] )
+
+Can be used to get or set the value of the base attribute.
+The return value, which is the old value, is a URI object or C<undef>.
+
+=item $uri->abs( [$base_uri] )
+
+The $base_uri argument is now made optional as the object carries its
+base with it.  A new object is returned even if $uri is already
+absolute (while plain URI objects simply return themselves in
+that case).
+
+=item $uri->rel( [$base_uri] )
+
+The $base_uri argument is now made optional as the object carries its
+base with it.  A new object is always returned.
+
+=back
+
+
+=head1 SEE ALSO
+
+L<URI>
+
+=head1 COPYRIGHT
+
+Copyright 1998-2002 Gisle Aas.
+
+=cut