Message/URI/Generic.dis

Module:
  @QName: MURI|Generic
  @FullName:
    @@lang: en
    @@@: Manakai URI Generic Module
  @Namespace:
    http://suika.fam.cx/~wakaba/archive/2005/manakai/URI/Generic/
  
  @enDesc:
    The <DFN::manakai URI Generic Module> provides a set of interfaces
    to extract components of URIs.

  @enDesc:
    @@ddid:src
    @@@:
      Portions of the Perl implementation contained in the module
      are derived from the example parser (April 7, 2004) available at
      <URI::http://www.gbiv.com/protocols/uri/rev-2002/uri_test.pl>
      that is placed in the Public Domain by Roy T. Fielding
      and Day Software, Inc.

  @DISCore:author: DISCore|Wakaba
  @License: license|Perl+MPL
  @Date:
    $Date: 2006/12/30 08:27:50 $
  
  @Require:
    @@Module:
      @@@QName: MDOM|DOMFeature
    @@Module:
      @@@QName: MDOM|DOMCore

Namespace:
  @c:
    http://suika.fam.cx/~wakaba/archive/2004/8/18/dom-core#
  @dis:
    http://suika.fam.cx/~wakaba/archive/2004/8/18/lang#dis--
  @DISlib:
    http://suika.fam.cx/~wakaba/archive/2004/dis/
  @domperl:
    http://suika.fam.cx/~wakaba/archive/2006/dom/perl/
  @dx:
    http://suika.fam.cx/~wakaba/archive/2005/manakai/Util/Error/DOMException#
  @f:
    http://suika.fam.cx/~wakaba/archive/2004/dom/feature#
  @fe:
    http://suika.fam.cx/www/2006/feature/
  @idl:
    http://suika.fam.cx/~wakaba/archive/2004/dis/IDL#
  @kwd:
    http://suika.fam.cx/~wakaba/archive/2005/rfc2119/
  @lang:
    http://suika.fam.cx/~wakaba/archive/2004/8/18/lang#
  @license:
    http://suika.fam.cx/~wakaba/archive/2004/8/18/license#
  @ManakaiDOM:
    http://suika.fam.cx/~wakaba/archive/2004/8/18/manakai-dom#
  @MDOM:
    http://suika.fam.cx/~wakaba/archive/2004/8/18/manakai-dom#ManakaiDOM.
  @mn:
    http://suika.fam.cx/~wakaba/archive/2005/manakai/Util/ManakaiNode#
  @MURI:
    http://suika.fam.cx/~wakaba/archive/2005/manakai/URI/
  @rdf:
    http://www.w3.org/1999/02/22-rdf-syntax-ns#
  @rdfs:
    http://www.w3.org/2000/01/rdf-schema#
  @str:
    http://suika.fam.cx/~wakaba/archive/2005/manakai/DOM/DOMString/
  @test:
    http://suika.fam.cx/~wakaba/archive/2004/dis/Test#

ResourceDef:
  @QName: MURI|
  @rdf:type: dis|ModuleGroup
  @FullName:
    @@lang:en
    @@@:
      The manakai URI modules
  @DISPerl:packageName:
    Message::URI::
  @DISPerl:interfacePackageName:
    Message::URI::IF::

## -- Features

FeatureDef:
  @QName: URIFeature
  @featureQName: fe|URI
  @FeatureVerDef:
    @@QName: URIFeature40
    @@f:instanceOf: URIFeature
    @@Version: 4.0
    @@enDesc:
      The manakai DOM URI Module, version 4.0

ElementTypeBinding:
  @Name: FeatureDef
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@rdf:type: f|Feature

ElementTypeBinding:
  @Name: FeatureVerDef
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@rdf:type: f|Feature

ElementTypeBinding:
  @Name: featureQName
  @ElementType:
    f:name
  @ShadowContent:
    @@ContentType: DISCore|QName

ElementTypeBinding:
  @Name: IFQName
  @ElementType:
    dis:QName
  @ShadowContent:
    @@ForCheck: ManakaiDOM|ForIF

ElementTypeBinding:
  @Name: ClsQName
  @ElementType:
    dis:QName
  @ShadowContent:
    @@ForCheck: ManakaiDOM|ForClass

ElementTypeBinding:
  @Name: IFISA
  @ElementType:
    dis:ISA
  @ShadowContent:
    @@ForCheck: ManakaiDOM|ForIF

ElementTypeBinding:
  @Name: ClsISA
  @ElementType:
    dis:ISA
  @ShadowContent:
    @@ForCheck: ManakaiDOM|ForClass

ElementTypeBinding:
  @Name: IFClsDef
  @ElementType: 
    dis:ResourceDef
  @ShadowContent:
    @@rdf:type:
      @@@@: dis|MultipleResource
      @@@ForCheck: !ManakaiDOM|ForIF !ManakaiDOM|ForClass
    @@resourceFor: ManakaiDOM|ForIF
    @@resourceFor:
      @@@@: ManakaiDOM|ForClass

    @@rdf:type:
      @@@@: DISLang|Interface
      @@@ForCheck: ManakaiDOM|ForIF

    @@rdf:type:
      @@@@: DISLang|Class
      @@@ForCheck: ManakaiDOM|ForClass

    @@Implement:
      @@@@: ||+||ManakaiDOM|ForIF
      @@@ContentType: DISCore|TFPQNames
      @@@ForCheck: ManakaiDOM|ForClass

    @@f:implements:
      @@@@: URIFeature40

ElementTypeBinding:
  @Name: Method
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@rdf:type: DISLang|Method

ElementTypeBinding:
  @Name: IntMethod
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@rdf:type: DISLang|Method
    @@ForCheck: ManakaiDOM|ForClass
    @@ManakaiDOM:isForInternal: 1

ElementTypeBinding:
  @Name: Param
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: DISLang|MethodParameter

ElementTypeBinding:
  @Name: NamedParam
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: DISLang|MethodParameter
    @@DISPerl:isNamedParameter: 1

ElementTypeBinding:
  @Name: Return
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: DISLang|MethodReturn

ElementTypeBinding:
  @Name: Attr
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: DISLang|Attribute

ElementTypeBinding:
  @Name: Get
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: DISLang|AttributeGet

ElementTypeBinding:
  @Name: Set
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: DISLang|AttributeSet

ElementTypeBinding:
  @Name: InCase
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: ManakaiDOM|InCase

ElementTypeBinding:
  @Name: PerlDef
  @ElementType:
    dis:Def
  @ShadowContent:
    @@ContentType:
      lang:Perl
    @@ForCheck: ManakaiDOM|ForClass

ElementTypeBinding:
  @Name: Test
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@rdf:type: test|StandaloneTest
    @@ForCheck: ManakaiDOM|ForClass

## -- Implementation

IFClsDef:
  @IFQName: URIImplementation
  @ClsQName: ManakaiURIImplementation

  @domperl:implementedByObjectsOf: c|DOMImplementation
  @domperl:classImplementedByObjectsOf: c|ManakaiDOMImplementation

  @enDesc:
    The <IF::URIImplementation> interface provides
    factory methods to create <IF::URIReference> objects.

  @f:provides: URIFeature40

  @Test:
    @@enDesc:
      The implementation registry should know this class when the
      module is loaded.
    @@PerlDef:
      I: {
        for my $impl (@{$Message::DOM::ImplementationRegistry
                              ->get_dom_implementation_list
                                  ({<Q::fe|URI> => '4.0'})}) {
          if ($impl->isa (<IFName::URIImplementation>)) {
            last I;
          }
        }
        $test->assert_never;
      } # I

  @Method:
    @@Name: createURIReference
    @@enDesc:
      Creates a <IF::URIReference> object with a DOM URI.
    @@Param:
      @@@Name: uri
      @@@Type: String
      @@@enDesc:
        A DOM URI.
      @@@InCase:
        @@@@Type: String
        @@@@enDesc:
          A new <IF::URIReference> object with its
          <A::URIReference.uriReference> set to the parameter value.
      @@@InCase:
        @@@@Type: DISPerl|SCALAR||ManakaiDOM|all
        @@@@enDesc:
          In Perl binding:
          A new <IF::URIReference> object with its
          <A::URIReference.uriReference> set to the value referenced
          by the parameter value.  Any modification to the <IF::URIReference>
          object will change the value referenced by the parameter value.
      @@@InCase:
        @@@@Type: URIReference
        @@@@enDesc:
          The method <kwd:MUST> return a new <IF::URIReference>
          object that would be returned by the method 
          <M::URIReference.cloneURIReference> of the parameter value.
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The newly created <IF::URIReference> object.
      @@@PerlDef:
        if (UNIVERSAL::isa ($uri, <IFName::URIReference>)) {
          __DEEP{
            $r = $uri-><M::URIReference.cloneURIReference>;
          }__;
        } elsif (ref $uri eq 'SCALAR') {
          $r = bless $uri, <ClassName::ManakaiURIReference>;
        } else {
          my $v = "$uri";
          $r = bless \$v, <ClassName::ManakaiURIReference>;
        }

    @@Test:
      @@@QName: URIImpl.createURIRef.1.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        my $value = 'http://example.com/';
  
        $test->id ('interface');
        my $uri1 = $impl-><M::URIImplementation.createURIReference>
                            ($value);
        $test->assert_isa ($uri1, <IFName::URIReference>);

        $test->id ('uriReference');
        $test->assert_equals ($uri1-><AG::URIReference.uriReference>,
                              'http://example.com/');
 
        $test->id ('modification');
        $uri1-><AS::URIReference.uriFragment> ('abcdefg');
        $test->assert_equals ($value, 'http://example.com/');
    @@Test:
      @@@QName: URIImpl.createURIRef.2.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;
 
        my $value = 'http://example.com/';
 
        $test->id ('interface');
        my $uri1 = $impl-><M::URIImplementation.createURIReference>
                            (\$value);
        $test->assert_isa ($uri1, <IFName::URIReference>);

        $test->id ('uriReference');
        $test->assert_equals ($uri1-><AG::URIReference.uriReference>,
                              'http://example.com/');
 
        $test->id ('modification');
        $uri1-><AS::URIReference.uriFragment> ('abcdefg');
        $test->assert_equals ($value, 'http://example.com/#abcdefg');
    @@Test:
      @@@QName: URIImpl.createURIRef.3.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;
 
        my $value = $impl-><M::URIImplementation.createURIReference>
                             ('http://example.com/');
 
        $test->id ('interface');
        my $uri1 = $impl-><M::URIImplementation.createURIReference>
                            ($value);
        $test->assert_isa ($uri1, <IFName::URIReference>);

        $test->id ('uriReference');
        $test->assert_equals ($uri1-><AG::URIReference.uriReference>,
                              'http://example.com/');
 
        $test->id ('modification');
        $uri1-><AS::URIReference.uriFragment> ('abcdefg');
        $test->assert_equals ($value-><AG::URIReference.uriReference>,
                              'http://example.com/');

  @CODE:
    @@QName: createURIImplForTest
    @@PerlDef:
      $impl = <Class::c|ManakaiDOMImplementation>->_new;
##URIImplementation

ElementTypeBinding:
  @Name: CODE
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: DISPerl|BlockCode
    @@ForCheck: ManakaiDOM|ForClass

IFClsDef:
  @IFQName: URIReference
  @ClsQName: ManakaiURIReference

  @enDesc:
    A <IF::URIReference> object represents a DOM URI.

    A <IF::URIReference> object <kwd:MAY> also implement
    scheme-specific interfaces.

      {NOTE::
        Modifications to the object, via the <A::URIReference.uriScheme>
        attribute for example, might or might not result in
        mutations of the interfaces implemented by the object,
        since dynamic rebinding of classes might not be supported
        in the programming language or the DOM binding in use.
        
        If a method or attribute that is inappropriate for
        the underlying DOM URI represented by the <IF::URIReference>
        object is invoked, the result is undefined, unless
        the specification of the interface defines any error
        handling behavior.  However, implementators are advised
        to make the method or attribute implementations torelant
        and harmless as far as possible.
      }

  @IntMethod:
    @@Name: new
    @@enDesc:
      Creates a new <IF::URIReference> object.  For internal use.
    @@Param:
      @@@Name: uri
      @@@Type: String
      @@@enDesc:
        The DOM URI.
      @@@InCase:
        @@@@Type: DISPerl|SCALAR||ManakaiDOM|all
      @@@InCase:
        @@@@Type: URIReference
    @@Return:
      @@@Type: URIReference
      @@@PerlDef:
        my $v;
        if (ref $uri) {
          if (UNIVERSAL::isa ($uri, <IFName::URIReference>)) {
            my $w = $$uri;
            $v = \$w;
          } elsif (ref $uri eq 'SCALAR') {
            $v = $uri;
          } else {
            $v = \$uri;
          }
        } else {
          $v = \$uri;
        }
        $r = bless $v, <ClassName::ManakaiURIReference>;

    @@Test:
      @@@QName: URIRef.new.test
      @@@PerlDef:
        $test->id ('str');
        my $u1 = <ClassM::ManakaiURIReference.new> (q<http://www.example/>);
        $test->assert_isa ($u1, <IFName::URIReference>);
        $test->assert_equals
                 ($u1-><AG::URIReference.uriReference>, q<http://www.example/>);

        $test->id ('strref');
        my $u = q<http://www.example/>;
        my $u2 = <ClassM::ManakaiURIReference.new> (\$u);
        $test->assert_isa ($u2, <IFName::URIReference>);
        $test->assert_equals
                 ($u2-><AG::URIReference.uriReference>, q<http://www.example/>);

        $test->id ('uri');
        my $u3 = <ClassM::ManakaiURIReference.new> ($u1);
        $test->assert_isa ($u3, <IFName::URIReference>);
        $test->assert_equals
                 ($u3-><AG::URIReference.uriReference>, q<http://www.example/>);
        
        $test->id ('uri.mod');
        $u3-><AS::URIReference.uriScheme> ('ftp');
        $test->assert_equals
                 ($u1-><AG::URIReference.uriReference>, q<http://www.example/>);
        $test->assert_equals
                 ($u3-><AG::URIReference.uriReference>, q<ftp://www.example/>);

  @Attr:
    @@Name: uriReference
    @@Operator:
      @@@: ""
      @@ContentType: DISPerl|Perl
    @@enDesc:
      A string representation of the DOM URI.
    @@Type: String
    @@Get:
      @@@PerlDef:
        $r = $$self;
    @@Set:
      @@@enDesc:
        Sets the DOM URI, with no lexical or semantical check
        and normalization performed.  Implementations <kwd:MUST>
        allow and set the specified value even if it is not a 
        legal RFC 3986 URI reference or RFC 3987 IRI reference.
      @@@PerlDef:
        $$self = $given;
        __DEEP{
          $self-><M::ManakaiURIReference.onSchemeChanged>;
        }__;

    @@Test:
      @@@QName: URIRef.uriRef.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://www.example/>],
          [q<about:blank>],
          [qq<\x{3001}\x{3002}>],
          [q<%23>],
        ) {
          my $uri1 = $impl-><M::URIImplementation.createURIReference> ($_->[0]);
          
          $test->id ('get');
          $test->assert_equals 
                   ($uri1-><AG::URIReference.uriReference>,
                    $_->[0]);

          $test->id ('set.same');
          $uri1-><AS::URIReference.uriReference> ($_->[0]);
          $test->assert_equals 
                   ($uri1-><AG::URIReference.uriReference>,
                    $_->[0]);

          $test->id ('set.diff');
          $uri1-><AS::URIReference.uriReference> (q<about:>);
          $test->assert_equals 
                   ($uri1-><AG::URIReference.uriReference>,
                    q<about:>);
        }

  @IntMethod:
    @@Operator: DISPerl|AsStringMethod
    @@Return:
      @@@Type: String
      @@@PerlDef:
        $r = $$self;

    @@Test:
      @@@QName: URIRef.stringify.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        $test->id ('method');
        $test->assert_equals
                 ($impl-><M::URIImplementation.createURIReference> (q<a>)
                       ->stringify,
                  q<a>);

        $test->id ('str');
        $test->assert_equals
                 ($impl-><M::URIImplementation.createURIReference> (q<a>).'',
                  q<a>);

  @IntMethod:
    @@Name: onSchemeChanged
    @@enDesc:
      This method is invoked when the scheme component 
      of the DOM URI has been changed.  Other component might
      also be changed.
    @@Return:
      @@@PerlDef:
      @@@enImplNote:
        {TODO::
          Class re<Perl::bless>ing.
        }

  @IntMethod:
    @@Name: onAuthorityChanged
    @@enDesc:
      This method is invoked when the authority component 
      of the DOM URI has been changed.  Other component might
      also be changed.
    @@Return:
      @@@PerlDef:

  @IntMethod:
    @@Name: onPathChanged
    @@enDesc:
      This method is invoked when the path component 
      of the DOM URI has been changed.  Other component might
      also be changed.
    @@Return:
      @@@PerlDef:

  @IntMethod:
    @@Name: onQueryChanged
    @@enDesc:
      This method is invoked when the query component 
      of the DOM URI has been changed.  Other component might
      also be changed.
    @@Return:
      @@@PerlDef:

  @IntMethod:
    @@Name: onFragmentChanged
    @@enDesc:
      This method is invoked when the fragment component 
      of the DOM URI has been changed.  Other component might
      also be changed.
    @@Return:
      @@@PerlDef:

  @Attr:
    @@Name: uriScheme
    @@enDesc:
      The scheme component of the DOM URI.
    @@Type: String
    @@Get:
      @@@enDesc:
        The scheme component of the DOM URI is returned.

        {P:: The <DFN::scheme component> can be obtained by the algorithm:

          = Copy the DOM URI to the variable <VAR::U>.

          = If <VAR::U> does not contain any <CHAR::COLON>,
            there is no scheme component.

          = Remove <CHAR::COLON> and any characters following it from <VAR::U>.

          = If <VAR::U> contains <CHAR::SOLIDUS>, <CHAR::QUESTION MARK>,
            and / or <CHAR::NUMBER SIGN>, then there is no scheme component.
 
          = If <VAR::U> is empty, then there is no scheme component.

          = Otherwise, <VAR::U> is the scheme component.
        
        }

        {NOTE::
          {P::
            This algorithm is so designed that:
          
            - when it is performed on an RFC 3986 URI or RFC 3987 IRI,
              the substring matching to the <ABNF::scheme> production
              <SRC::RFC 3986 3.1> is returned as the scheme component.

            - when it is performed on an RFC 3986 relative reference or
              RFC 3987 relative IRI reference, it reports that
              there is no scheme component.

          }
        }
      @@@nullCase:
        @@@@enDesc:
          If there is no scheme component.
      @@@PerlDef:
        if ($$self =~ m!^([^/?#:]+):!) {
          $r = $1;
        } else {
          $r = null;
        }
    @@Set:
      @@@enDesc:
        Replaces the scheme component of the DOM URI by the new value.
        If the new value contains <CHAR::SOLIDUS>, <CHAR::QUESTION MARK>,
        <CHAR::NUMBER SIGN>, and / or <CHAR::COLON>, then
        the result is undefined.  If the new value is empty,
        then the result is undefined.

        If the original DOM URI has no scheme component, then
        the string obtained by concatenating the new scheme component
        value, <CHAR::COLON>, and the original DOM URI is set
        as the new DOM URI.
      @@@nullCase:
        If there is the scheme component, the scheme component
        and a <CHAR::COLON> following it are removed from the DOM URI.
      @@@PerlDef:
        if (defined $given) {
          if (length $given and $given !~ m![/?#:]!) {
            unless ($$self =~ s!^[^/?#:]+:!$given:!) {
              $$self = $given . ':' . $$self;
              __DEEP{
                $self-><M::ManakaiURIReference.onSchemeChanged>;
              }__;
            }
          }
        } else {
          $$self =~ s!^[^/?#:]+:!!;
          __DEEP{
            $self-><M::ManakaiURIReference.onSchemeChanged>;
          }__;
        }
        
    @@Test:
      @@@QName: URIRef.uriScheme.1.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://example/>, 'http', q<http://example/>, q<//example/>],
          [q<hTTp://example/>, 'hTTp', q<http://example/>, q<//example/>],
          [q<//example/>, null, q<http://example/>, q<//example/>],
          [q</a:b/>, null, q<http:/a:b/>, q</a:b/>],
          [q<?aa:b>, null, q<http:?aa:b>, q<?aa:b>],
          [q<aaaa#bb:cc>, null, q<http:aaaa#bb:cc>, q<aaaa#bb:cc>],
          [q<%D9%82%D9%87%D9%88%D8%A9://coffee.example/>,
           '%D9%82%D9%87%D9%88%D8%A9',
           q<http://coffee.example/>, q<//coffee.example/>],
          [q<%D9%82%D9%87%D9%88%D8%a9://coffee.example/>,
           '%D9%82%D9%87%D9%88%D8%a9',
           q<http://coffee.example/>, q<//coffee.example/>],
          [q<:aa>, null, q<http::aa>, q<:aa>], # ilegal
        ) {
          $test->id ('get.'.$_->[0]);
          my $uri1 = $impl-><M::URIImplementation.createURIReference>
                              ($_->[0]);
          $test->assert_equals
                   ($uri1-><AG::URIReference.uriScheme>,
                    $_->[1]);

          $test->id ('set.'.$_->[0]);
          my $uri2 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri2-><AS::URIReference.uriScheme> ('http');
          $test->assert_equals
                   ($uri2-><AG::URIReference.uriReference>,
                    $_->[2]);

          $test->id ('reset.'.$_->[0]);
          my $uri4 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri4-><AS::URIReference.uriScheme> (null);
          $test->assert_equals
                   ($uri4-><AG::URIReference.uriReference>,
                    $_->[3]);
        }

  @Attr:
    @@Name: uriAuthority
    @@enDesc:
      The authority component of the DOM URI.
    @@Type: String
    @@Get:
      @@@enDesc:
        The authority component of the DOM URI is returned.

        {P:: The <DFN::authority component> can be obtained by the algorithm:

          = Copy the DOM URI to the variable <VAR::U>.

          = Removes the scheme component and the <CHAR::COLON>
            following it, if any, from <VAR::U>.

          = If <VAR::U> contains a <CHAR::NUMBER SIGN>,
            remove the character and any characters following it
            from <VAR::U>.

          = If <VAR::U> contains a <CHAR::QUESTION MARK>,
            remove the character and any characters following it
            from <VAR::U>.

          = If <VAR::U> begins with two <CHAR::SOLIDUS> characters,
            remove them from <VAR::U>.  <EM::Otherwise>,
            <VAR::U> has no authority component.

          = Remove any <CHAR::SOLIDUS> and any characters following
            it from <VAR::U>.

          = Then, <VAR::U> is the authority component.
        
        }

        {NOTE::
          {P::
            This algorithm is so designed that:
          
            - when it is performed on an RFC 3986 URI reference,
              the substring matching to the <ABNF::authority> production
              <SRC::RFC 3986 3.2>, if any, is returned as the authority
              component.

            - when it is performed on an RFC 3987 IRI reference,
              the substring matching to the <ABNF::iauthority> production
              <SRC::RFC 3987 2.2>, if any, is returned as the authority
              component.

            - when it is performed on an RFC 3986 relative reference or
              RFC 3987 relative IRI reference that does <EM::not>
              contains authority component as defined in
              RFC 3986 or RFC 3987, it reports that
              there is no authority component.

          }
        }
      @@@nullCase:
        @@@@enDesc:
          If there is no authority component.
      @@@PerlDef:
        if ($$self =~ m!^(?:[^:/?#]+:)?(?://([^/?#]*))?!) {
          $r = $1;
        } else {
          $r = null;
        }
    @@Set:
      @@@enDesc:
        Replaces the authority component of the DOM URI by the new value.
        If the new value contains <CHAR::SOLIDUS>, <CHAR::QUESTION MARK>,
        and / or <CHAR::NUMBER SIGN>, then the result is undefined.
        If the <A::URIReference.uriPath> is empty and
        does not begin with a <CHAR::SOLIDUS>,
        then result is undefined.

        If the original DOM URI has no authority component, then
        the string obtained by concatenating the scheme component
        with following <CHAR::COLON> character of the original DOM URI
        if any, two <CHAR::SOLIDUS> characters, the new authority
        component value, and the path, query, and fragment
        components of the original DOM URI, with their preceding
        delimiters, if any, is set as the new DOM URI.
      @@@nullCase:
        If there is the authority component, the authority component
        and two <CHAR::SOLIDUS> characters preceding it are removed
        from the DOM URI.
      @@@PerlDef:
        if (defined $given) {
          unless ($given =~ m![/?#]!) {
            unless ($$self =~ s!^((?:[^:/?#]+:)?)(?://[^/?#]*)?!$1//$given!) {
              $$self = '//' . $given;
              __DEEP{
                $self-><M::ManakaiURIReference.onAuthorityChanged>;
              }__;
            }
          }
        } else {
          if ($$self =~ s!^((?:[^:/?#]+:)?)(?://[^/?#]*)?!$1!) {
            __DEEP{
              $self-><M::ManakaiURIReference.onAuthorityChanged>;
            }__;
          }
        }
        
    @@Test:
      @@@QName: URIRef.uriAuth.1.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://example/>, 'example', q<http://example/>,
           q<http:///>, q<http:/>],
          [q<http://eXAmple/>, 'eXAmple', q<http://example/>,
           q<http:///>, q<http:/>],
          [q<//example/>, 'example', q<//example/>, q<///>, q</>],
          [q</a:b/>, null, q<//example/a:b/>, q<///a:b/>, q</a:b/>],
          [q<?aa:b>, null, q<//example?aa:b>, q<//?aa:b>, q<?aa:b>],
          [q</aaaa#bb:cc>, null, q<//example/aaaa#bb:cc>,
           q<///aaaa#bb:cc>, q</aaaa#bb:cc>],
          [q<http://%D9%82%D9%87%D9%88%D8%A9/>,
           '%D9%82%D9%87%D9%88%D8%A9',
           q<http://example/>, q<http:///>, q<http:/>],
          [q<http://%D9%82%D9%87%D9%88%D8%a9/>,
           '%D9%82%D9%87%D9%88%D8%a9',
           q<http://example/>, q<http:///>, q<http:/>],
          ['about:', null, q<about://example>, q<about://>, q<about:>],
          ['http://a:b@c/', 'a:b@c', q<http://example/>,
           q<http:///>, q<http:/>],
        ) {
          $test->id ('get.'.$_->[0]);
          my $uri1 = $impl-><M::URIImplementation.createURIReference>
                              ($_->[0]);
          $test->assert_equals
                   ($uri1-><AG::URIReference.uriAuthority>,
                    $_->[1]);

          $test->id ('set.'.$_->[0]);
          my $uri2 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri2-><AS::URIReference.uriAuthority> ('example');
          $test->assert_equals
                   ($uri2-><AG::URIReference.uriReference>,
                    $_->[2]);

          $test->id ('empty.'.$_->[0]);
          my $uri3 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri3-><AS::URIReference.uriAuthority> ('');
          $test->assert_equals
                   ($uri3-><AG::URIReference.uriReference>,
                    $_->[3]);

          $test->id ('reset.'.$_->[0]);
          my $uri4 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri4-><AS::URIReference.uriAuthority> (null);
          $test->assert_equals
                   ($uri4-><AG::URIReference.uriReference>,
                    $_->[4]);
        }

  @Attr:
    @@Name: uriUserinfo
    @@enDesc:
      The userinfo component of the DOM URI.
    @@Type: String
    @@Get:
      @@@enDesc:
        The userinfo component of the DOM URI is returned.

        {P:: The <DFN::userinfo component> can be obtained by the algorithm:

          = Set <A::URIReference.uriAuthority> value
            to the variable <VAR::U>.

          = If <VAR::U> is <DOM::null>, then there is no userinfo
            component.

          = If <VAR::U> contains a <CHAR::COMMERCIAL AT> preceded
            by no <CHAR::LEFT SQUARE BRACKET>, <CHAR::RIGHT SQUARE BRACKET>,
            or <CHAR::COLON> character,
            remove the character and any characters following it
            from <VAR::U>.  <EM::Otherwise>, there is no userinfo
            component.

          = Then, <VAR::U> is the userinfo component.
        
        }

        {NOTE::
          {P::
            This algorithm is so designed that:
          
            - when it is performed on an RFC 3986 URI reference,
              the substring matching to the <ABNF::userinfo> production
              <SRC::RFC 3986 3.2.1>, if any, is returned as the userinfo
              component.

            - when it is performed on an RFC 3987 IRI reference,
              the substring matching to the <ABNF::iuserinfo> production
              <SRC::RFC 3987 2.2>, if any, is returned as the userinfo component.

            - when it is performed on an RFC 3986 relative reference or
              RFC 3987 relative IRI reference that does <EM::not>
              contains userinfo component as defined in
              RFC 3986 or RFC 3987, it reports that
              there is no userinfo component.

          }
        }
      @@@nullCase:
        @@@@enDesc:
          If there is no userinfo component.
      @@@PerlDef:
        __DEEP{
          my $v = $self-><AG::URIReference.uriAuthority>;
          if (defined $v and $v =~ /^([^@\[\]]*)\@/) {
            $r = $1;
          } else {
            $r = null;
          }
        }__;
    @@Set:
      @@@enDesc:
        Replaces the userinfo component of the DOM URI by the new value.
        If the new value contains <CHAR::SOLIDUS>, <CHAR::QUESTION MARK>,
        <CHAR::NUMBER SIGN>, <CHAR::LEFT SQUARE BRACKET>,
        <CHAR::RIGHT SQUARE BRACKET>, and / or <CHAR::COMMERCIAL AT>,
        then the result is undefined.

        If there is the authority component but no userinfo component,
        then the authority component is replaced by the
        concatenation of the new userinfo value, a <CHAR::COMMERCIAL AT>, 
        and the original authority component.

        If there is no authority component, then
        the string obtained by concatenating the scheme component
        with following <CHAR::COLON> character of the original DOM URI
        if any, two <CHAR::SOLIDUS> characters, the new userinfo
        component value, a <CHAR::COMMERCIAL AT> character,
        and the path, query, and fragment
        components of the original DOM URI, with their preceding
        delimiters, if any, is set as the new DOM URI.
        If the <A::URIReference.uriPath> is empty and
        does not begin with a <CHAR::SOLIDUS>, then result is undefined.
      @@@nullCase:
        If there is the userinfo component, the userinfo component
        and a <CHAR::COMMERCIAL AT> characters following it are removed
        from the DOM URI.
      @@@PerlDef:
        __DEEP{
          my $auth = $self-><AG::URIReference.uriAuthority>;
          if (defined $auth) {
            if (defined $given) {
              unless ($auth =~ s/^[^\@\[\]]*\@/$given\@/) {
                $auth = $given . '@' . $auth;
              }
            } else {
              $auth =~ s/^[^\@\[\]]*\@//;
            }
            $self-><AS::URIReference.uriAuthority> ($auth);
          } else {
            if (defined $given and $given !~ /[\/#?\@\[\]]/) {
              $self-><AS::URIReference.uriAuthority> ($given.'@');
            }
          }
        }__;
        
    @@Test:
      @@@QName: URIRef.uriUserinfo.1.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://example/>, null, q<http://user@example/>,
           q<http://@example/>, q<http://example/>],
          [q<http://User@example/>, 'User', q<http://user@example/>,
           q<http://@example/>, q<http://example/>],
          [q<//example/>, null, q<//user@example/>,
           q<//@example/>, q<//example/>],
          [q<//u@example/>, 'u', q<//user@example/>,
           q<//@example/>, q<//example/>],
          [q</a:b/>, null, q<//user@/a:b/>, q<//@/a:b/>, q</a:b/>],
          [q<?aa:b>, null, q<//user@?aa:b>, q<//@?aa:b>, q<?aa:b>],
          [q</aaaa#bb:cc>, null, q<//user@/aaaa#bb:cc>,
           q<//@/aaaa#bb:cc>, q</aaaa#bb:cc>],
          [q<http://%D9%82%D9%87%D9%88%D8%A9@example/>,
           '%D9%82%D9%87%D9%88%D8%A9',
           q<http://user@example/>, q<http://@example/>, q<http://example/>],
          [q<http://%D9%82%D9%87%D9%88%D8%a9@example/>,
           '%D9%82%D9%87%D9%88%D8%a9',
           q<http://user@example/>, q<http://@example/>, q<http://example/>],
          ['about:', null, q<about://user@>, q<about://@>, q<about:>],
          ['http://a:b@c/', 'a:b', q<http://user@c/>,
           q<http://@c/>, q<http://c/>],
          ['http://[c@d]/', null, q<http://user@[c@d]/>,
           q<http://@[c@d]/>, q<http://[c@d]/>],
        ) {
          $test->id ('get.'.$_->[0]);
          my $uri1 = $impl-><M::URIImplementation.createURIReference>
                              ($_->[0]);
          $test->assert_equals
                   ($uri1-><AG::URIReference.uriUserinfo>,
                    $_->[1]);

          $test->id ('set.'.$_->[0]);
          my $uri2 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri2-><AS::URIReference.uriUserinfo> ('user');
          $test->assert_equals
                   ($uri2-><AG::URIReference.uriReference>,
                    $_->[2]);

          $test->id ('empty.'.$_->[0]);
          my $uri3 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri3-><AS::URIReference.uriUserinfo> ('');
          $test->assert_equals
                   ($uri3-><AG::URIReference.uriReference>,
                    $_->[3]);

          $test->id ('reset.'.$_->[0]);
          my $uri4 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri4-><AS::URIReference.uriUserinfo> (null);
          $test->assert_equals
                   ($uri4-><AG::URIReference.uriReference>,
                    $_->[4]);
        }

  @Attr:
    @@Name: uriHost
    @@enDesc:
      The host component of the DOM URI.
    @@Type: String
    @@Get:
      @@@enDesc:
        The host component of the DOM URI is returned.

        {P:: The <DFN::host component> can be obtained by the algorithm:

          = Set <A::URIReference.uriAuthority> value
            to the variable <VAR::U>.

          = If <VAR::U> is <DOM::null>, then there is no host
            component.

          = If <VAR::U> contains a <CHAR::COMMERCIAL AT>,  
            remove the character and any characters preceding it
            from <VAR::U>.

          = If <VAR::U> contains a <CHAR::COLON> followed by
            zero or more digits (i.e. <CHAR::DIGIT ZERO>
            to <CHAR::DIGIT NINE>), then remove the <CHAR::COLON>
            and any characters following it.

          = Then, <VAR::U> is the userinfo component.
        
        }

        {NOTE::
          {P::
            This algorithm is so designed that:
          
            - when it is performed on an RFC 3986 URI reference,
              the substring matching to the <ABNF::host> production
              <SRC::RFC 3986 3.2.2> is returned as the host component.

            - when it is performed on an RFC 3987 IRI reference,
              the substring matching to the <ABNF::ihost> production
              <SRC::RFC 3987 2.2> is returned as the host component.

            - when it is performed on an RFC 3986 relative reference or
              RFC 3987 relative IRI reference that does <EM::not>
              contains host component as defined in
              RFC 3986 or RFC 3987, it reports that
              there is no host component.

          }
        }
      @@@nullCase:
        @@@@enDesc:
          If there is no host component.

          {NOTE::
            If the <A::URIReference.uriAuthority> attribute contains
            a non-<DOM::null> value, then <A::URIReference.uriHost> has
            never been <DOM::null>.
          }
      @@@PerlDef:
        __DEEP{
          my $v = $self-><AG::URIReference.uriAuthority>;
          if (defined $v) {
            $v =~ s/^[^@\[\]]*\@//;
            $v =~ s/:[0-9]*\z//;
            $r = $v;
          } else {
            $r = null;
          }
        }__;
    @@Set:
      @@@enDesc:
        Replaces the host component of the DOM URI by the new value.
        If the new value contains <CHAR::SOLIDUS>, <CHAR::QUESTION MARK>,
        <CHAR::NUMBER SIGN>, <CHAR::LEFT SQUARE BRACKET>,
        <CHAR::RIGHT SQUARE BRACKET>, and / or <CHAR::COLON>,
        then the result is undefined.

        If there is no authority component, then
        the string obtained by concatenating the scheme component
        with following <CHAR::COLON> character of the original DOM URI
        if any, two <CHAR::SOLIDUS> characters,
        the new host component, and the path, query, and fragment
        components of the original DOM URI, with their preceding
        delimiters, if any, is set as the new DOM URI.
        If the <A::URIReference.uriPath> is empty and
        does not begin with a <CHAR::SOLIDUS>, then result is undefined.
      @@@PerlDef:
        __DEEP{
          my $auth = $self-><AG::URIReference.uriAuthority>;
          if (defined $auth) {
            my $v = '';
            if ($auth =~ /^([^\@\[\]]*\@)/) {
              $v .= $1;
            }
            $v .= $given;
            if ($auth =~ /(:[0-9]*)\z/) {
              $v .= $1;
            }
            $self-><AS::URIReference.uriAuthority> ($v);
          } elsif ($given !~ /[\/\@:#?]/) {
            $self-><AS::URIReference.uriAuthority> ($given);
          }
        }__;
        
    @@Test:
      @@@QName: URIRef.uriHost.1.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://example/>, 'example', q<http://example/>, q<http:///>],
          [q<http://User@example/>, 'example', q<http://User@example/>,
           q<http://User@/>],
          [q<//example/>, 'example', q<//example/>, q<///>],
          [q<//u@example/>, 'example', q<//u@example/>, q<//u@/>],
          [q</a:b/>, null, q<//example/a:b/>, q<///a:b/>],
          [q<?aa:b>, null, q<//example?aa:b>, q<//?aa:b>],
          [q</aaaa#bb:cc>, null, q<//example/aaaa#bb:cc>,
           q<///aaaa#bb:cc>],
          [q<http://%D9%82%D9%87%D9%88%D8%A9/>,
           '%D9%82%D9%87%D9%88%D8%A9', q<http://example/>, q<http:///>],
          [q<http://%D9%82%D9%87%D9%88%D8%a9/>,
           '%D9%82%D9%87%D9%88%D8%a9', q<http://example/>, q<http:///>],
          ['about:', null, q<about://example>, q<about://>],
          ['http://a:b@c:3/', 'c', q<http://a:b@example:3/>,
           q<http://a:b@:3/>],
          ['http://a:b@[c@d:4]:3/', '[c@d:4]', q<http://a:b@example:3/>,
           q<http://a:b@:3/>],
        ) {
          $test->id ('get.'.$_->[0]);
          my $uri1 = $impl-><M::URIImplementation.createURIReference>
                              ($_->[0]);
          $test->assert_equals
                   ($uri1-><AG::URIReference.uriHost>,
                    $_->[1]);

          $test->id ('set.'.$_->[0]);
          my $uri2 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri2-><AS::URIReference.uriHost> ('example');
          $test->assert_equals
                   ($uri2-><AG::URIReference.uriReference>,
                    $_->[2]);

          $test->id ('empty.'.$_->[0]);
          my $uri3 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri3-><AS::URIReference.uriHost> ('');
          $test->assert_equals
                   ($uri3-><AG::URIReference.uriReference>,
                    $_->[3]);
        }

  @Attr:
    @@Name: uriPort
    @@enDesc:
      The port component of the DOM URI.
    @@Type: String
    @@Get:
      @@@enDesc:
        The port component of the DOM URI is returned.

        {P:: The <DFN::port component> can be obtained by the algorithm:

          = Set <A::URIReference.uriAuthority> value
            to the variable <VAR::U>.

          = If <VAR::U> is <DOM::null>, then there is no port
            component.

          = If <VAR::U> contains a <CHAR::COLON> followed
            by zero or more digits (<CHAR::DIGIT ZERO> to
            <CHAR::DIGIT NINE>),
            remove the character and any characters following it
            from <VAR::U>.  <EM::Otherwise>, there is no port
            component.

          = Then, <VAR::U> is the port component.
        
        }

        {NOTE::
          {P::
            This algorithm is so designed that:
          
            - when it is performed on an RFC 3986 URI reference
              or RFC 3987 IRI reference,
              the substring matching to the <ABNF::port> production
              <SRC::RFC 3986 3.2.3>, if any, is returned as the port component.

            - when it is performed on an RFC 3986 relative reference or
              RFC 3987 relative IRI reference that does <EM::not>
              contains port component as defined in
              RFC 3986 or RFC 3987, it reports that
              there is no port component.

          }
        }
      @@@nullCase:
        @@@@enDesc:
          If there is no port component.
      @@@PerlDef:
        __DEEP{
          my $v = $self-><AG::URIReference.uriAuthority>;
          if (defined $v and $v =~ /:([0-9]*)\z/) {
            $r = $1;
          } else {
            $r = null;
          }
        }__;
    @@Set:
      @@@enDesc:
        Replaces the port component of the DOM URI by the new value.
        If the new value contains characters other than
        digits (<CHAR::DIGIT ZERO> to <CHAR::DIGIT NINE>),
        then the result is undefined.

        If there is the authority component but no port component,
        then the authority component is replaced by the
        concatenation of the original authority component,
        a <CHAR::COLON>, and the new port value.

        If there is no authority component, then
        the string obtained by concatenating the scheme component
        with following <CHAR::COLON> character of the original DOM URI
        if any, two <CHAR::SOLIDUS> characters, a <CHAR::COLON>
        character, the new port component value,
        and the path, query, and fragment
        components of the original DOM URI, with their preceding
        delimiters, if any, is set as the new DOM URI.
        If the <A::URIReference.uriPath> is empty and
        does not begin with a <CHAR::SOLIDUS>, then result is undefined.
      @@@nullCase:
        If there is the port component, the port component
        and a <CHAR::COLON> characters preceding it are removed
        from the DOM URI.
      @@@PerlDef:
        __DEEP{
          my $auth = $self-><AG::URIReference.uriAuthority>;
          if (defined $auth) {
            if (defined $given) {
              unless ($auth =~ s/:[0-9]*\z/:$given/) {
                $auth = $auth . ':' . $given;
              }
            } else {
              $auth =~ s/:[0-9]*\z//;
            }
            $self-><AS::URIReference.uriAuthority> ($auth);
          } else {
            if (defined $given and $given =~ /\A[0-9]*\z/) {
              $self-><AS::URIReference.uriAuthority> (':'.$given);
            }
          }
        }__;
        
    @@Test:
      @@@QName: URIRef.uriPort.1.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://example/>, null, q<http://example:2/>,
           q<http://example:/>, q<http://example/>],
          [q<http://User@example:3/>, '3', q<http://User@example:2/>,
           q<http://User@example:/>, q<http://User@example/>],
          [q<//example/>, null, q<//example:2/>,
           q<//example:/>, q<//example/>],
          [q<//u@example:3/>, '3', q<//u@example:2/>,
           q<//u@example:/>, q<//u@example/>],
          [q</a:b/>, null, q<//:2/a:b/>, q<//:/a:b/>, q</a:b/>],
          [q<?aa:b>, null, q<//:2?aa:b>, q<//:?aa:b>, q<?aa:b>],
          [q</aaaa#bb:cc>, null, q<//:2/aaaa#bb:cc>,
           q<//:/aaaa#bb:cc>, q</aaaa#bb:cc>],
          ['about:', null, q<about://:2>, q<about://:>, q<about:>],
          ['http://a:b@c:3/', '3', q<http://a:b@c:2/>,
           q<http://a:b@c:/>, q<http://a:b@c/>],
          ['http://[c@d:3]/', null, q<http://[c@d:3]:2/>,
           q<http://[c@d:3]:/>, q<http://[c@d:3]/>],
        ) {
          $test->id ('get.'.$_->[0]);
          my $uri1 = $impl-><M::URIImplementation.createURIReference>
                              ($_->[0]);
          $test->assert_equals
                   ($uri1-><AG::URIReference.uriPort>,
                    $_->[1]);

          $test->id ('set.'.$_->[0]);
          my $uri2 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri2-><AS::URIReference.uriPort> ('2');
          $test->assert_equals
                   ($uri2-><AG::URIReference.uriReference>,
                    $_->[2]);

          $test->id ('empty.'.$_->[0]);
          my $uri3 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri3-><AS::URIReference.uriPort> ('');
          $test->assert_equals
                   ($uri3-><AG::URIReference.uriReference>,
                    $_->[3]);

          $test->id ('reset.'.$_->[0]);
          my $uri4 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri4-><AS::URIReference.uriPort> (null);
          $test->assert_equals
                   ($uri4-><AG::URIReference.uriReference>,
                    $_->[4]);
        }

  @Attr:
    @@Name: uriPath
    @@enDesc:
      The path component of the DOM URI.
    @@Type: String
    @@Get:
      @@@enDesc:
        The path component of the DOM URI is returned.

        {P:: The <DFN::path component> can be obtained by the algorithm:

          = Copy the DOM URI to the variable <VAR::U>.

          = If <VAR::U> contains a <CHAR::NUMBER SIGN>, remove
            the character and any characters following it.

          = If <VAR::U> contains a <CHAR::QUESTION MARK>, remove
            the character and any characters following it.

          = If <VAR::U> contains the scheme component and
            the <CHAR::COLON> character fllowing it, remove
            them from <VAR::U>.

          = If <VAR::U> contains the authority component and
            the <CHAR::SOLIDUS> characters preceding it, remove
            them from <VAR::U>.

          = Then, <VAR::U> is the path component.
        
        }

        {NOTE::
          {P::
            This algorithm is so designed that:
          
            - when it is performed on an RFC 3986 URI reference,
              the substring matching to the <ABNF::path> production
              <SRC::RFC 3986 3.3> is returned as the path component.

            - when it is performed on an RFC 3987 IRI reference,
              the substring matching to the <ABNF::ipath> production
              <SRC::RFC 3987 2.2> is returned as the path component.

          }
        }
      @@@PerlDef:
        if ($$self =~ m!\A(?:[^:/?#]+:)?(?://[^/?#]*)?([^?#]*)!) {
          $r = $1;
        }
    @@Set:
      @@@enDesc:
        Replaces the path component of the DOM URI by the new value.

        If the DOM URI <EM::does> contain the authority component
        and the new path value's first character, if any,
        is <EM::different> from <CHAR::SOLIDUS>, the result is
        undefined.

        If the DOM URI does <EM::not> contains scheme and authority
        components and the new path value contains <CHAR::COLON>
        that is not preceded by <CHAR::SOLIDUS> or the first
        two characters are both <CHAR::SOLIDUS>, the result is
        undefined.

        If the new value contains <CHAR::QUESTION MARK> or
        <CHAR::NUMBER SIGN>, the result is undefined.
      @@@PerlDef:
        if ($given !~ /[?#]/ and
            $$self =~ m!^((?:[^:/?#]+:)?(?://[^/?#]*)?)[^?#]*((?:\?[^#]*)?(?:#.*)?)!s) {
          $$self = $1.$given.$2;
          __DEEP{
            $self-><M::ManakaiURIReference.onPathChanged>;
          }__;
        }
        
    @@Test:
      @@@QName: URIRef.uriPath.1.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://example/>, '/', q<http://example/path>, q<http://example>],
          [q<http://example/path>, '/path', q<http://example/path>,
           q<http://example>],
          [q<//example/>, '/', q<//example/path>, q<//example>],
          [q<//example/path>, '/path', q<//example/path>, q<//example>],
          [q</path?query>, '/path', q</path?query>, q<?query>],
          [q<?query>, '', q</path?query>, q<?query>],
          [q</aaaa#bb:cc>, '/aaaa', q</path#bb:cc>, q<#bb:cc>],
          [q<http://example/%D9%82%D9%87%D9%88%D8%A9/>,
           '/%D9%82%D9%87%D9%88%D8%A9/', q<http://example/path>,
           q<http://example>],
          [q<http://example/%D9%82%D9%87%D9%88%D8%a9/>,
           '/%D9%82%D9%87%D9%88%D8%a9/', q<http://example/path>,
           q<http://example>],
          ['about:', '', q<about:/path>, q<about:>],
          ['http://a:b@c:3/', '/', q<http://a:b@c:3/path>,
           q<http://a:b@c:3>],
          ['http://a:b@[c@d:4]:3/', '/', q<http://a:b@[c@d:4]:3/path>,
           q<http://a:b@[c@d:4]:3>],
        ) {
          $test->id ('get.'.$_->[0]);
          my $uri1 = $impl-><M::URIImplementation.createURIReference>
                              ($_->[0]);
          $test->assert_equals
                   ($uri1-><AG::URIReference.uriPath>,
                    $_->[1]);

          $test->id ('set.'.$_->[0]);
          my $uri2 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri2-><AS::URIReference.uriPath> ('/path');
          $test->assert_equals
                   ($uri2-><AG::URIReference.uriReference>,
                    $_->[2]);

          $test->id ('set.'.$_->[0]);
          my $uri3 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri3-><AS::URIReference.uriPath> ('');
          $test->assert_equals
                   ($uri3-><AG::URIReference.uriReference>,
                    $_->[3]);
        }

  @Attr:
    @@Name: uriQuery
    @@enDesc:
      The query component of the DOM URI.
    @@Type: String
    @@Get:
      @@@enDesc:
        The query component of the DOM URI is returned.

        {P:: The <DFN::query component> can be obtained by the algorithm:

          = Copy the DOM URI to the variable <VAR::U>.

          = If <VAR::U> contains a <CHAR::NUMBER SIGN>,
            remove it and any characters following it from <VAR::U>.

          = If <VAR::U> contains a <CHAR::QUESTION MARK>,
            remove it and any character preceding it from <VAR::U>.
            <EM::Otherwise>, there is no query component.

          = Then, <VAR::U> is the query component.
        
        }

        {NOTE::
          {P::
            This algorithm is so designed that:
          
            - when it is performed on an RFC 3986 URI reference,
              the substring matching to the <ABNF::query> production
              <SRC::RFC 3986 3.4>, if any, is returned as the query component.
          
            - when it is performed on an RFC 3987 IRI reference,
              the substring matching to the <ABNF::iquery> production
              <SRC::RFC 3987 2.2>, if any, is returned as the query component.

            - when it is performed on an RFC 3986 relative reference or
              RFC 3987 relative IRI reference that does <EM::not>
              contains query component as defined in
              RFC 3986 or RFC 3987, it reports that
              there is no query component.

          }
        }
      @@@nullCase:
        @@@@enDesc:
          If there is no query component.
      @@@PerlDef:
        if ($$self =~ m!^(?:[^:/?#]+:)?(?://[^/?#]*)?[^?#]*(?:\?([^#]*))?!s) {
          $r = $1;
        } else {
          $r = null;
        }
    @@Set:
      @@@enDesc:
        Replaces the query component of the DOM URI by the new value.
        If the new value contains a <CHAR::NUMVER SIGN>,
        then the result is undefined.

        If there is no query component, a <CHAR::QUESTION MARK>
        followed by the new value is inserted before the first
        <CHAR::NUMBER SIGN>, if any, or at the end of the DOM URI.
      @@@nullCase:
        If there is the query component, the query component
        and a <CHAR::QUESTION MARK> character preceding it are removed
        from the DOM URI.
      @@@PerlDef:
        if ((not defined $given or $given !~ /#/) and
            $$self =~ m!^((?:[^:/?#]+:)?(?://[^/?#]*)?[^?#]*)(?:\?[^#]*)?((?:#.*)?)!s) {
          $$self = defined $given ? $1.'?'.$given.$2 : $1.$2;
          __DEEP{
            $self-><M::ManakaiURIReference.onQueryChanged>;
          }__;
        }
    @@Test:
      @@@QName: URIRef.uriQuery.1.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://example/>, null, q<http://example/?query>,
           q<http://example/?>, q<http://example/>],
          [q<//example/>, null, q<//example/?query>,
           q<//example/?>, q<//example/>],
          [q</a:b/>, null, q</a:b/?query>, q</a:b/?>, q</a:b/>],
          [q<?aa:b>, 'aa:b', q<?query>, q<?>, q<>],
          [q</aaaa#bb:cc>, null, q</aaaa?query#bb:cc>,
           q</aaaa?#bb:cc>, q</aaaa#bb:cc>],
          [q</aaaa?query#bb:cc>, 'query', q</aaaa?query#bb:cc>,
           q</aaaa?#bb:cc>, q</aaaa#bb:cc>],
          [q<http://example/?%D9%82%D9%87%D9%88%D8%A9/>,
           '%D9%82%D9%87%D9%88%D8%A9/',
           q<http://example/?query>, q<http://example/?>, q<http://example/>],
          [q<http://example/?%D9%82%D9%87%D9%88%D8%a9/>,
           '%D9%82%D9%87%D9%88%D8%a9/',
           q<http://example/?query>, q<http://example/?>, q<http://example/>],
          ['about:', null, q<about:?query>, q<about:?>, q<about:>],
          ['about:a?b', 'b', q<about:a?query>, q<about:a?>, q<about:a>],
          ['about:#a?b', null, q<about:?query#a?b>, q<about:?#a?b>,
           q<about:#a?b>],
        ) {
          $test->id ('get.'.$_->[0]);
          my $uri1 = $impl-><M::URIImplementation.createURIReference>
                              ($_->[0]);
          $test->assert_equals
                   ($uri1-><AG::URIReference.uriQuery>,
                    $_->[1]);

          $test->id ('set.'.$_->[0]);
          my $uri2 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri2-><AS::URIReference.uriQuery> ('query');
          $test->assert_equals
                   ($uri2-><AG::URIReference.uriReference>,
                    $_->[2]);

          $test->id ('set.empty.'.$_->[0]);
          my $uri3 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri3-><AS::URIReference.uriQuery> ('');
          $test->assert_equals
                   ($uri3-><AG::URIReference.uriReference>,
                    $_->[3]);

          $test->id ('reset.'.$_->[0]);
          my $uri4 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri4-><AS::URIReference.uriQuery> (null);
          $test->assert_equals
                   ($uri4-><AG::URIReference.uriReference>,
                    $_->[4]);
        }

  @Attr:
    @@Name: uriFragment
    @@enDesc:
      The fragment component of the DOM URI.
    @@Type: String
    @@Get:
      @@@enDesc:
        The fragment component of the DOM URI is returned.

        {P:: The <DFN::fragment component> can be obtained by the algorithm:

          = Copy the DOM URI to the variable <VAR::U>.

          = If <VAR::U> contains a <CHAR::NUMBER SIGN>,
            remove it and any characters preceding it from <VAR::U>.
            <EM::Otherwise>, there is no fragment component.

          = Then, <VAR::U> contains the fragment component.
        
        }

        {NOTE::
          {P::
            This algorithm is so designed that:
          
            - when it is performed on an RFC 3986 URI reference,
              the substring matching to the <ABNF::fragment> production
              <SRC::RFC 3986 3.5>, if any, is returned as the fragment component.
          
            - when it is performed on an RFC 3987 IRI reference,
              the substring matching to the <ABNF::ifragment> production
              <SRC::RFC 3987 2.2>, if any, is returned as the fragment component.

            - when it is performed on an RFC 3986 relative reference or
              RFC 3987 relative IRI reference that does <EM::not>
              contains fragment component as defined in
              RFC 3986 or RFC 3987, it reports that
              there is no fragment component.

          }
        }
      @@@nullCase:
        @@@@enDesc:
          If there is no fragment component.
      @@@PerlDef:
        if ($$self =~ m!^(?:[^:/?#]+:)?(?://[^/?#]*)?[^?#]*(?:\?[^#]*)?(?:#(.*))?!s) {
          $r = $1;
        } else {
          $r = null;
        }
    @@Set:
      @@@enDesc:
        Replaces the fragment component of the DOM URI by the new value.

        If there is no fragment component, a <CHAR::NUMBER SIGN>
        followed by the new value is appended to the DOM URI.
      @@@nullCase:
        If there is the fragment component, the fragment component
        and a <CHAR::NUMBER SIGN> character preceding it are removed
        from the DOM URI.
      @@@PerlDef:
        if ($$self =~ m!^((?:[^:/?#]+:)?(?://[^/?#]*)?[^?#]*(?:\?[^#]*)?)(?:#.*)?!s) {
          $$self = defined $given ? $1 . '#' . $given : $1;
          __DEEP{
            $self-><M::ManakaiURIReference.onFragmentChanged>;
          }__;
        }
        
    @@Test:
      @@@QName: URIRef.uriFragment.1.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://example/>, null, q<http://example/#fragment>,
           q<http://example/#>, q<http://example/>],
          [q<//example/>, null, q<//example/#fragment>,
           q<//example/#>, q<//example/>],
          [q</a:b/>, null, q</a:b/#fragment>, q</a:b/#>, q</a:b/>],
          [q<?aa:b>, null, q<?aa:b#fragment>, q<?aa:b#>, q<?aa:b>],
          [q</aaaa#bb:cc>, 'bb:cc', q</aaaa#fragment>, q</aaaa#>, q</aaaa>],
          [q</aaaa?q#bb:cc>, 'bb:cc', q</aaaa?q#fragment>, q</aaaa?q#>,
           q</aaaa?q>],
          [q</aaaa?q#bb?cc>, 'bb?cc', q</aaaa?q#fragment>, q</aaaa?q#>,
           q</aaaa?q>],
          [q<http://example#%D9%82%D9%87%D9%88%D8%A9/>,
           '%D9%82%D9%87%D9%88%D8%A9/',
           q<http://example#fragment>, q<http://example#>, q<http://example>],
          [q<http://example#%D9%82%D9%87%D9%88%D8%a9/>,
           '%D9%82%D9%87%D9%88%D8%a9/',
           q<http://example#fragment>, q<http://example#>, q<http://example>],
          ['about:', null, q<about:#fragment>, q<about:#>, q<about:>],
          ['about:a?b', null, q<about:a?b#fragment>, q<about:a?b#>,
           q<about:a?b>],
          ['about:#a?b', 'a?b', q<about:#fragment>, q<about:#>, q<about:>],
        ) {
          $test->id ('get.'.$_->[0]);
          my $uri1 = $impl-><M::URIImplementation.createURIReference>
                              ($_->[0]);
          $test->assert_equals
                   ($uri1-><AG::URIReference.uriFragment>,
                    $_->[1]);

          $test->id ('set.'.$_->[0]);
          my $uri2 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri2-><AS::URIReference.uriFragment> ('fragment');
          $test->assert_equals
                   ($uri2-><AG::URIReference.uriReference>,
                    $_->[2]);

          $test->id ('set.empty.'.$_->[0]);
          my $uri3 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri3-><AS::URIReference.uriFragment> ('');
          $test->assert_equals
                   ($uri3-><AG::URIReference.uriReference>,
                    $_->[3]);

          $test->id ('reset.'.$_->[0]);
          my $uri4 = $impl-><M::URIImplementation.createURIReference> ($uri1);
          $uri4-><AS::URIReference.uriFragment> (null);
          $test->assert_equals
                   ($uri4-><AG::URIReference.uriReference>,
                    $_->[4]);
        }

  @Method:
    @@Name: getURIPathSegment
    @@enDesc:
      Returns a path segment in the DOM URI.
    @@Param:
      @@@Name: index
      @@@Type: idl|unsignedLong||ManakaiDOM|all
      @@@enDesc:
        The ordinal index of the path segment, starting from zero.
      @@@enDesc:
        @@@@ddid: a
        @@@@@:
          For Perl binding, if the <P::index> is negative, then
          the method <kwd:MUST> act as if <MATH::<VAR::N> - <P::index>>
          (where <VAR::N> is the number of the path segments in
          the DOM URI) is set to the <P::index> parameter, except
          when <MATH::<VAR::N> - <P::index>> is negative, in that
          case the result is undefined.  If the <P::index> is
          greater than or equal to <VAR::N>, the method <kwd:MUST>
          act as if <MATH::<VAR::N> - 1> is set to the <P::index>
          parameter.  For example, if <P::index>
          is set to <Perl::-1>, then the method replaces the last
          path segment in the DOM URI.          
    @@Return:
      @@@Type: String
      @@@enDesc:
        The <P::index>th path segment in the DOM URI.

        {P::
           The <P::index>th <DFN::path segment> can be retrived
           by:

           = Copy <A::URIReference.uriPath> value to the variable
             <VAR::U>.

           = Insert a <CHAR::SOLIDUS> at the begining of <VAR::U>.
             Insert a <CHAR::SOLIDUS> at the end of <VAR::U>.

           = Remove <MATH::(<P::index> + 1)>th <CHAR::SOLIDUS>
             and any character before it from <VAR::U>.  If there
             is no such <CHAR::SOLIDUS>, there is no <P::index>th
             path segment.

           = Remove <CHAR::SOLIDUS> and any character following
             it from <VAR::U>, if any.

           = Then, the variable <VAR::U> contains the <P::index>th 
             path segment.
        }
      @@@nullCase:
        @@@@enDesc:
          If there is no <P::index>th path segment.
      @@@PerlDef:
        __DEEP{
          $r = [split m!/!, $self-><AG::URIReference.uriPath>, -1]->[$index];
          $r = '' if not defined $r and
                     ($index == 0 or $index == -1); # If path is empty
        }__;

    @@Test:
      @@@QName: URIRef.getURIPathSegment.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://www.example/1/3/4?b#c>, ['', '1', '3', '4']],
          [q<http://www.example/1/2/>, ['', '1', '2', '']],
          [q<http://www.example/>, ['', '']],
          [q<http://www.example>, ['']],
          [q<mailto:foo@example>, ['foo@example']],
          [q<about:>, ['']],
          [q<data:text/plain,abcdefg/ef>, ['text', 'plain,abcdefg', 'ef']],
          [q<./a/c/..d/e/..>, ['.', 'a', 'c', '..d', 'e', '..']],
          [q<a>, ['a']],
          [q</a/b/>, ['', 'a', 'b', '']],
          [q<//a/b/c>, ['', 'b', 'c']],
          [q<?a>, ['']],
        ) {
          my $uri1 = $impl-><M::URIImplementation.createURIReference> ($_->[0]);
          for my $i (0..@{$_->[1]}) { # 0..n-1+1
            $test->id ($_->[0].'.'.$i);
            $test->assert_equals
                     ($uri1-><M::URIReference.getURIPathSegment> ($i),
                      $_->[1]->[$i]);
          }
          for my $i (1..@{$_->[1]}) {
            $test->id ($_->[0].'.-'.$i);
            $test->assert_equals
                     ($uri1-><M::URIReference.getURIPathSegment> (-$i),
                      $_->[1]->[-$i]);
          }
        }

  @Method:
    @@Name: setURIPathSegment
    @@enDesc:
      Replaces or removes a path segment in the DOM URI.

      If there is the <P::index>th path segment and the <P::newValue>
      is not <DOM::null>, then replace the <P::index>th path 
      segment by <P::newValue>.

      If there is the <P::index>th path segment and the <P::newValue>
      is <DOM::null>, then the <P::index>th path segment and 
      a <CHAR::SOLIDUS> character following it, if any, are removed.

      If there is no <P::index>th path segment, then the result
      is undefined, except when <P::index> is equal to the
      number of the segments, in that case a <CHAR::SOLIDUS> and 
      the <P::newValue> is appended to the path component.

        {ISSUE::
          <CODE::INDEX_SIZE_ERR>?  No effect?
        }

      If the method would make the only path segment removed,
      then it <kwd:MUST> make the path component an empty string.

      If there is the authority component and the method would make
      the first path segment non-empty string, if there is
      no scheme component, there is no authority component,
      and the method would make the first path segment containing
      a <CHAR::COLON> character, or if there is no authority 
      component and the method would make the first and the second
      path segments empty strings, then the result is undefined.
    @@Param:
      @@@Name: index
      @@@Type: idl|unsignedLong||ManakaiDOM|all
      @@@enDesc:
        The ordinal index of the path segment to replace.
      @@@enDesc:
        @@@@ddid: a
        @@@@@:
          For Perl binding, if the <P::index> is negative, then
          the method <kwd:MUST> act as if <MATH::<VAR::N> - <P::index>>
          (where <VAR::N> is the number of the path segments in
          the DOM URI) is set to the <P::index> parameter, except
          when <MATH::<VAR::N> - <P::index>> is negative, in that
          case the result is undefined.  If the <P::index> is
          greater than <VAR::N>, the method <kwd:MUST>
          extend the list by inserting zero-length segments so that 
          the result path component has <MATH::<P::index> + 1> segments.
          For example, if <P::index>
          is set to <Perl::-1>, then the method replaces the last
          path segment in the DOM URI.          
    @@Param:
      @@@Name: newValue
      @@@Type: String
      @@@enDesc:
        The new path segment.
      @@@nullCase:
        @@@@enDesc:
          Removes the <P::index>th path segment.
    @@Return:
      @@@PerlDef:
        __DEEP{
          my @p = split m!/!, $self-><AG::URIReference.uriPath>, -1;
          if (defined $newValue) {
            $p[$index] = $newValue;
          } else {
            splice @p, $index, 1;
          }
          no warnings 'uninitialized';
          $self-><AS::URIReference.uriPath> (join '/', @p);
        }__;

    @@Test:
      @@@QName: URIRef.setURIPathSegment.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        my $uri1 = $impl-><M::URIImplementation.createURIReference>
                            (q<http://foo.example/a/b/c>);

        $test->id (1);
        $uri1-><M::URIReference.setURIPathSegment> (3, 'd');
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example/a/b/d>);

        $test->id (2);
        $uri1-><M::URIReference.setURIPathSegment> (2, 'e');
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example/a/e/d>);

        $test->id (3);
        $uri1-><M::URIReference.setURIPathSegment> (3, '');
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example/a/e/>);

        $test->id (4);
        $uri1-><M::URIReference.setURIPathSegment> (3, null);
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example/a/e>);

        $test->id (5);
        $uri1-><M::URIReference.setURIPathSegment> (1, null);
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example/e>);

        $test->id (6);
        $uri1-><M::URIReference.setURIPathSegment> (-1, 'd');
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example/d>);

        $test->id (7);
        $uri1-><M::URIReference.setURIPathSegment> (-1, null);
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example>);

        $test->id (8);
        $uri1-><M::URIReference.setURIPathSegment> (0, null);
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example>);

        $test->id (9);
        $uri1-><M::URIReference.setURIPathSegment> (1, 'd');
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example/d>);

        $test->id (10);
        $uri1-><M::URIReference.setURIPathSegment> (3, 'd');
        $test->assert_equals
                 ($uri1-><AG::URIReference.uriReference>,
                  q<http://foo.example/d//d>);

  @Attr:
    @@Name: isURI
    @@enDesc:
      Whether the DOM URI is a URI or not according to the latest
      version of the URI specification.

        {NOTE:: At the time of writing, RFC 3986 is the latest
                version and the attribute must contain the value
                same as <A::URIReference.isURI3986> attribute of
                the same object.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If it is a legal URI.
      @@@FalseCase:
        @@@@enDesc:
          If it is not a legal URI.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isURI3986>;
        }__;

  @Attr:
    @@Name: isURI3986
    @@DISPerl:methodName: is_uri_3986
    @@enDesc:
      Whether the DOM URI is an RFC 3986 URI or not.

        {NOTE::
           Whether the URI is valid according to the scheme-specific
           syntax is not checked.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If the DOM URI matches to the production
          rule <ABNF::URI> <SRC::RFC 3986 3>.
      @@@FalseCase:
        @@@@enDesc: Otherwise.
      @@@PerlDef:
        my $v = $$self;
        V: {
          ## -- Scheme
          unless ($v =~ s/^[A-Za-z][A-Za-z0-9+.-]*://s) {
            last V;
          }

          ## -- Fragment
          if ($v =~ s/#(.*)\z//s) {
            my $w = $1;
            unless ($w =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/?-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}) {
              last V;
            }
          }

          ## -- Query
          if ($v =~ s/\?(.*)\z//s) {
            my $w = $1;
            unless ($w =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/?-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}) {
              last V;
            }
          }

          ## -- Authority
          if ($v =~ s!^//([^/]*)!!s) {
            my $w = $1;
            $w =~ s/^(?>[A-Za-z0-9._~!\$&'()*+,;=:-]|%[0-9A-Fa-f][0-9A-Fa-f])*\@//os;
            $w =~ s/:[0-9]*\z//;
            if ($w =~ /^\[(.*)\]\z/s) {
              my $x = $1;
              unless ($x =~ /\A[vV][0-9A-Fa-f]+\.[A-Za-z0-9._~!\$&'()*+,;=:-]+\z/) {
                ## IPv6address
                my $isv6;
                __CODE{isIPv6address:: $in => $x, $out => $isv6}__;
                last V unless $isv6;
              }
            } else {
              unless ($w =~ /\A(?>[A-Za-z0-9._~!\$&'()*+,;=-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z/) {
                last V;
              }
            }
          }
    
          ## -- Path
          unless ($v =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}s) {
            last V;
          }

          $r = true;
        } # V

  @Attr:
    @@Name: isRelativeReference
    @@enDesc:
      Whether the DOM URI is a relative reference or not according to the latest
      version of the URI specification.

        {NOTE:: At the time of writing, RFC 3986 is the latest
                version and the attribute must contain the value
                same as <A::URIReference.isRelativeReference3986> attribute of
                the same object.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If it is a legal relative reference.
      @@@FalseCase:
        @@@@enDesc:
          If it is not a legal relative reference.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isRelativeReference3986>;
        }__;

  @Attr:
    @@Name: isRelativeReference3986
    @@DISPerl:methodName: is_relative_reference_3986
    @@enDesc:
      Whether the DOM URI is an RFC 3986 relative reference or not.
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If the DOM URI matches to the production
          rule <ABNF::relative-ref> <SRC::RFC 3986 4.2>.
      @@@FalseCase:
        @@@@enDesc: Otherwise.
      @@@PerlDef:
        my $v = $$self;
        V: {
          ## -- No scheme
          if ($v =~ s!^[^/?#]*:!!s) {
            last V;
          }

          ## -- Fragment
          if ($v =~ s/#(.*)\z//s) {
            my $w = $1;
            unless ($w =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/?-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}) {
              last V;
            }
          }

          ## -- Query
          if ($v =~ s/\?(.*)\z//s) {
            my $w = $1;
            unless ($w =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/?-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}) {
              last V;
            }
          }

          ## -- Authority
          if ($v =~ s!^//([^/]*)!!s) {
            my $w = $1;
            $w =~ s/^(?>[A-Za-z0-9._~!\$&'()*+,;=:-]|%[0-9A-Fa-f][0-9A-Fa-f])*\@//os;
            $w =~ s/:[0-9]*\z//;
            if ($w =~ /^\[(.*)\]\z/s) {
              my $x = $1;
              unless ($x =~ /\A[vV][0-9A-Fa-f]+\.[A-Za-z0-9._~!\$&'()*+,;=:-]+\z/) {
                ## IPv6address
                my $isv6;
                __CODE{isIPv6address:: $in => $x, $out => $isv6}__;
                last V unless $isv6;
              }
            } else {
              unless ($w =~ /\A(?>[A-Za-z0-9._~!\$&'()*+,;=-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z/) {
                last V;
              }
            }
          }
    
          ## -- Path
          unless ($v =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}s) {
            last V;
          }

          $r = true;
        } # V

  @Attr:
    @@Name: isURIReference
    @@enDesc:
      Whether the DOM URI is a URI reference or not according to the latest
      version of the URI specification.

        {NOTE:: At the time of writing, RFC 3986 is the latest
                version and the attribute must contain the value
                same as <A::URIReference.isURIReference3986> attribute of
                the same object.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If it is a legal URI reference.
      @@@FalseCase:
        @@@@enDesc:
          If it is not a legal URI reference.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isURIReference3986>;
        }__;

  @Attr:
    @@Name: isURIReference3986
    @@DISPerl:methodName: is_uri_reference_3986
    @@enDesc:
      Whether the DOM URI is an RFC 3986 URI reference or not.
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If the DOM URI matches to the production
          rule <ABNF::URI-reference> <SRC::RFC 3986 4.1>.
      @@@FalseCase:
        @@@@enDesc: Otherwise.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isURI3986> ||
               $self-><AG::URIReference.isRelativeReference3986>;
        }__;

  @Attr:
    @@Name: isAbsoluteURI
    @@enDesc:
      Whether the DOM URI is an absolute URI or not according to the latest
      version of the URI specification.

        {NOTE:: At the time of writing, RFC 3986 is the latest
                version and the attribute must contain the value
                same as <A::URIReference.isAbsoluteURI3986> attribute of
                the same object.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If it is a legal absolute URI.
      @@@FalseCase:
        @@@@enDesc:
          If it is not a legal absolute URI.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isAbsoluteURI3986>;
        }__;

  @Attr:
    @@Name: isAbsoluteURI3986
    @@DISPerl:methodName: is_absolute_uri_3986
    @@enDesc:
      Whether the DOM URI is an RFC 3986 absolute URI or not.
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If the DOM URI matches to the production
          rule <ABNF::absolute-URI> <SRC::RFC 3986 4.3>.
      @@@FalseCase:
        @@@@enDesc: Otherwise.
      @@@PerlDef:
        __DEEP{
          $r = $$self !~ /#/ && $self-><AG::URIReference.isURI3986>;
        }__;

  @Attr:
    @@Name: isEmptyReference
    @@enDesc:
      Whether the DOM URI is an empty string or not.
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If the DOM URI is an empty string.
      @@@FalseCase:
        @@@@enDesc:
          Otherwise.
      @@@PerlDef:
        $r = ($$self eq '');

  @Attr:
    @@Name: isIRI
    @@enDesc:
      Whether the DOM URI is an IRI or not according to the latest
      version of the IRI specification.

        {NOTE:: At the time of writing, RFC 3987 is the latest
                version and the attribute must contain the value
                same as <A::URIReference.isIRI3987> attribute of
                the same object.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If it is a legal IRI.
      @@@FalseCase:
        @@@@enDesc:
          If it is not a legal IRI.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isIRI3987>;
        }__;

  @Attr:
    @@Name: isIRI3987
    @@DISPerl:methodName: is_iri_3987
    @@enDesc:
      Whether the DOM URI is an RFC 3987 IRI or not.

        {NOTE::
           Whether the IRI is valid according to the scheme-specific
           syntax is not checked.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If the DOM URI matches to the production
          rule <ABNF::IRI> <SRC::RFC 3987 2.2>.
      @@@FalseCase:
        @@@@enDesc: Otherwise.
      @@@PerlDef:
        my $v = $$self;
        V: {
          ## LRM, RLM, LRE, RLE, LRO, RLO, PDF
          ## U+200E, U+200F, U+202A - U+202E
          my $ucschar = q{\x{00A0}-\x{200D}\x{2010}-\x{2029}\x{202F}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}};

          ## -- Scheme
          unless ($v =~ s/^[A-Za-z][A-Za-z0-9+.-]*://s) {
            last V;
          }

          ## -- Fragment
          if ($v =~ s/#(.*)\z//s) {
            my $w = $1;
            unless ($w =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/?$ucschar-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}o) {
              last V;
            }
          }

          ## -- Query
          if ($v =~ s/\?(.*)\z//s) {
            my $w = $1;
            unless ($w =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/?$ucschar\x{E000}-\x{F8FF}\x{F0000}-\x{FFFFD}\x{100000}-\x{10FFFD}-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}o) {
              last V;
            }
          }

          ## -- Authority
          if ($v =~ s!^//([^/]*)!!s) {
            my $w = $1;
            $w =~ s/^(?>[A-Za-z0-9._~!\$&'()*+,;=:$ucschar-]|%[0-9A-Fa-f][0-9A-Fa-f])*\@//os;
            $w =~ s/:[0-9]*\z//; 
            if ($w =~ /^\[(.*)\]\z/s) {
              my $x = $1;
              unless ($x =~ /\A[vV][0-9A-Fa-f]+\.[A-Za-z0-9._~!\$&'()*+,;=:-]+\z/) {
                ## IPv6address
                my $isv6;
                __CODE{isIPv6address:: $in => $x, $out => $isv6}__;
                last V unless $isv6;
              }
            } else {
              unless ($w =~ /\A(?>[A-Za-z0-9._~!\$&'()*+,;=$ucschar-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z/o) {
                last V;
              }
            }
          }
    
          ## -- Path
          unless ($v =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/$ucschar-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}os) {
            last V;
          }

          $r = true;
        } # V

  @Attr:
    @@Name: isRelativeIRIReference
    @@enDesc:
      Whether the DOM IRI is a relative IRI reference or not according
      to the latest version of the IRI specification.

        {NOTE:: At the time of writing, RFC 3987 is the latest
                version and the attribute must contain the value
                same as <A::URIReference.isRelativeIRIReference3987> attribute of
                the same object.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If it is a legal relative IRI reference.
      @@@FalseCase:
        @@@@enDesc:
          If it is not a legal relative IRI reference.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isRelativeIRIReference3987>;
        }__;

  @Attr:
    @@Name: isRelativeIRIReference3987
    @@DISPerl:methodName: is_relative_iri_reference_3987
    @@enDesc:
      Whether the DOM URI is an RFC 3987 relative IRI reference or not.
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If the DOM URI matches to the production
          rule <ABNF::irelative-ref> <SRC::RFC 3987 2.2, 4.1>.
      @@@FalseCase:
        @@@@enDesc: Otherwise.
      @@@PerlDef:
        my $v = $$self;
        V: {
          ## LRM, RLM, LRE, RLE, LRO, RLO, PDF
          ## U+200E, U+200F, U+202A - U+202E
          my $ucschar = q{\x{00A0}-\x{200D}\x{2010}-\x{2029}\x{202F}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}};

          ## -- No scheme
          if ($v =~ s!^[^/?#]*:!!s) {
            last V;
          }

          ## -- Fragment
          if ($v =~ s/#(.*)\z//s) {
            my $w = $1;
            unless ($w =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/?$ucschar-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}o) {
              last V;
            }
          }

          ## -- Query
          if ($v =~ s/\?(.*)\z//s) {
            my $w = $1;
            unless ($w =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/?$ucschar\x{E000}-\x{F8FF}\x{F0000}-\x{FFFFD}\x{100000}-\x{10FFFD}-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}o) {
              last V;
            }
          }

          ## -- Authority
          if ($v =~ s!^//([^/]*)!!s) {
            my $w = $1;
            $w =~ s/^(?>[A-Za-z0-9._~!\$&'()*+,;=:$ucschar-]|%[0-9A-Fa-f][0-9A-Fa-f])*\@//os;
            $w =~ s/:[0-9]*\z//;
            if ($w =~ /^\[(.*)\]\z/s) {
              my $x = $1;
              unless ($x =~ /\A[vV][0-9A-Fa-f]+\.[A-Za-z0-9._~!\$&'()*+,;=:-]+\z/) {
                ## IPv6address
                my $isv6;
                __CODE{isIPv6address:: $in => $x, $out => $isv6}__;
                last V unless $isv6;
              }
            } else {
              unless ($w =~ /\A(?>[A-Za-z0-9._~!\$&'()*+,;=$ucschar-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z/o) {
                last V;
              }
            }
          }
    
          ## -- Path
          unless ($v =~ m{\A(?>[A-Za-z0-9._~!\$&'()*+,;=:\@/$ucschar-]|%[0-9A-Fa-f][0-9A-Fa-f])*\z}os) {
            last V;
          }

          $r = true;
        } # V

  @Attr:
    @@Name: isIRIReference
    @@enDesc:
      Whether the DOM URI is an IRI reference or not according to the latest
      version of the IRI specification.

        {NOTE:: At the time of writing, RFC 3987 is the latest
                version and the attribute must contain the value
                same as <A::URIReference.isIRIReference3987> attribute of
                the same object.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If it is a legal IRI reference.
      @@@FalseCase:
        @@@@enDesc:
          If it is not a legal IRI reference.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isIRIReference3987>;
        }__;

  @Attr:
    @@Name: isIRIReference3987
    @@DISPerl:methodName: is_iri_reference_3987
    @@enDesc:
      Whether the DOM URI is an RFC 3987 IRI reference or not.
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If the DOM URI matches to the production
          rule <ABNF::IRI-reference> <SRC::RFC 3987 2.2, 4.1>.
      @@@FalseCase:
        @@@@enDesc: Otherwise.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isIRI3987> ||
               $self-><AG::URIReference.isRelativeIRIReference3987>;
        }__;

  @Attr:
    @@Name: isAbsoluteIRI
    @@enDesc:
      Whether the DOM URI is an absolute IRI or not according to the latest
      version of the IRI specification.

        {NOTE:: At the time of writing, RFC 3987 is the latest
                version and the attribute must contain the value
                same as <A::URIReference.isAbsoluteIRI3987> attribute of
                the same object.
        }
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If it is a legal absolute IRI.
      @@@FalseCase:
        @@@@enDesc:
          If it is not a legal absolute IRI.
      @@@PerlDef:
        __DEEP{
          $r = $self-><AG::URIReference.isAbsoluteIRI3987>;
        }__;

  @Attr:
    @@Name: isAbsoluteIRI3987
    @@DISPerl:methodName: is_absolute_iri_3987
    @@enDesc:
      Whether the DOM URI is an RFC 3987 absolute IRI or not.
    @@Type: idl|boolean||ManakaiDOM|all
    @@Get:
      @@@TrueCase:
        @@@@enDesc:
          If the DOM URI matches to the production
          rule <ABNF::absolute-IRI> <SRC::RFC 3987 2.2, 4.1>.
      @@@FalseCase:
        @@@@enDesc: Otherwise.
      @@@PerlDef:
        __DEEP{
          $r = $$self !~ /#/ && $self-><AG::URIReference.isIRI3987>;
        }__;

  @CODE:
    @@QName: isIPv6address
    @@enDesc:
      <Perl::$in>, <Perl::$out>
    @@PerlDef:
      my $ipv4 = qr/(?>0|1[0-9]{0,2}|2(?>[0-4][0-9]?|5[0-5]?|[6-9])?|[3-9][0-9]?)(?>\.(?>0|1[0-9]{0,2}|2(?>[0-4][0-9]?|5[0-5]?|[6-9])?|[3-9][0-9]?)){3}/;
      my $h16 = qr/[0-9A-Fa-f]{1,4}/;
      if ($in =~ s/(?:$ipv4|$h16)\z//o) {
        if ($in =~ /\A(?>$h16:){6}\z/o or
            $in =~ /\A::(?>$h16:){0,5}\z/o or
            $in =~ /\A${h16}::(?>$h16:){4}\z/o or
            $in =~ /\A$h16(?::$h16)?::(?>$h16:){3}\z/o or
            $in =~ /\A$h16(?::$h16){0,2}::(?>$h16:){2}\z/o or
            $in =~ /\A$h16(?::$h16){0,3}::$h16:\z/o or
            $in =~ /\A$h16(?::$h16){0,4}::\z/o) {
          $out = true;
        }
      } elsif ($in =~ s/$h16\z//o) {
        if ($in eq '' or $in =~ /\A$h16(?>:$h16){0,5}\z/o) {
          $out = true;
        }
      } elsif ($in =~ s/::\z//o) {
        if ($in eq '' or $in =~ /\A$h16(?>:$h16){0,6}\z/o) {
          $out = true;
        }
      }

  @Method:
    @@Name: getURIReference
    @@enDesc:
      Creates a clone of the DOM URI object, in which 
      any character not allowed in URI references are percent-encoded
      as per the latest version of the URI specification.

        {NOTE:: At the time of writing, RFC 3986 is the latest
                version and the method must return the same
                result as <M::URIReference.getURIReference3986> method.
        }
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The newly created <IF::URIReference> object.
      @@@PerlDef:
        __DEEP{
          $r = $self-><M::URIReference.getURIReference3986>;
        }__;

  @Method:
    @@Name: getURIReference3986
    @@DISPerl:methodName: get_uri_reference_3986
    @@enDesc:
      Creates a clone of the DOM URI object, in which 
      any character not allowed in RFC 3986 URI references are percent-encoded.

      {P:: The method <kwd:MUST> perform the algorithm specified
      in the section 3.1 of the RFC 3987 on a copy of the DOM URI
      contained by the object, as amended as:

        {LI:: it <kwd:MUST-NOT> convert the authority component
          using the IDNA rule.

            {ISSUE::
              Define a separate method to convert IDN to Punycoded name.
            }
        }

        - it <kwd:MUST> also deal with the characters not allowed
          in URIs in step 2 of the RFC 3987 algorithm.
      }
 
        {NOTE::
          The result DOM URI might not be a conformant RFC 3986
          URI reference.
        }
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The newly created <IF::URIReference> object.
      @@@PerlDef:
        __DEEP{
          require Encode;
          my $v = Encode::encode ('utf8', $$self);
          $v =~ s/([<>"{}|\\\^`\x00-\x20\x7E-\xFF])/sprintf '%%%02X', ord $1/ge;
          $r = bless \$v, <ClassName::ManakaiURIReference>;
        }__;

  @Method:
    @@Name: getIRIReference
    @@enDesc:
      Creates a clone of the DOM URI object, in which percent-encodings
      are decoded as far as possible
      as per the latest version of the IRI specification.

        {NOTE:: At the time of writing, RFC 3987 is the latest
                version and the method must return the same
                result as <M::URIReference.getIRIReference3987> method.
        }
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The newly created <IF::URIReference> object.
      @@@PerlDef:
        __DEEP{
          $r = $self-><M::URIReference.getIRIReference3987>;
        }__;

  @Method:
    @@Name: getIRIReference3987
    @@DISPerl:methodName: get_iri_reference_3987
    @@enDesc:
      Creates a clone of the DOM URI object, in which 
      percent-encodings are decoded as far as possible
      as defined in RFC 3987 IRI references.

      {P:: The method <kwd:MUST> perform a variant of the algorithm specified
      in the section 3.2 of RFC 3987 on a copy of the DOM URI
      contained by the object, as amended by replacing step 4 as:

        {LI::
           Re-percent-encode all octets produced in step 3 that in
           UTF-8 represent characters that:

             - are US-ASCII characters not allowed in RFC 3986 URI
               references,

             - are not contained in <ABNF::ucschar>
               character range and are not US-ASCII printable characters, or

             - are contained in the list of forbidden characters
               in the section 4.1 of RFC 3987.
        }
      }
 
        {NOTE::
          The result DOM URI might not be a conformant RFC 3987
          IRI reference.
        }
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The newly created <IF::URIReference> object.
      @@@PerlDef:
        __DEEP{
          require Encode;
          my $v = Encode::encode ('utf8', $$self);
          $v =~ s{%([2-9A-Fa-f][0-9A-Fa-f])}
                 {
                   my $ch = hex $1;
                   if ([
                 # 0x0    0x1    0x2    0x3    0x4    0x5    0x6    0x7
                 # 0x8    0x9    0xA    0xB    0xC    0xD    0xE    0xF
                   true,  true,  true,  true,  true,  true,  true,  true, # 0x00
                   true,  true,  true,  true,  true,  true,  true,  true, # 0x08
                   true,  true,  true,  true,  true,  true,  true,  true, # 0x10
                   true,  true,  true,  true,  true,  true,  true,  true, # 0x18
                   true,  true,  true,  true,  true,  true,  true,  true, # 0x20
                   true,  true,  true,  true,  true, false, false,  true, # 0x28
                  false, false, false, false, false, false, false, false, # 0x30
                  false, false,  true,  true,  true,  true,  true,  true, # 0x38
                   true, false, false, false, false, false, false, false, # 0x40
                  false, false, false, false, false, false, false, false, # 0x48
                  false, false, false, false, false, false, false, false, # 0x50
                  false, false, false,  true,  true,  true,  true, false, # 0x58
                   true, false, false, false, false, false, false, false, # 0x60
                  false, false, false, false, false, false, false, false, # 0x68
                  false, false, false, false, false, false, false, false, # 0x70
                  false, false, false,  true,  true,  true, false,  true, # 0x78
                 # 0x0    0x1    0x2    0x3    0x4    0x5    0x6    0x7
                 # 0x8    0x9    0xA    0xB    0xC    0xD    0xE    0xF
                   ]->[$ch]) {
                     # PERCENT SIGN, reserved, not-allowed in ASCII
                     '%'.$1;
                   } else {
                     chr $ch;
                   }
                 }ge;
          $v =~ s{(
            [\xC2-\xDF][\x80-\xBF] |                          # UTF8-2
            [\xE0][\xA0-\xBF][\x80-\xBF] |
            [\xE1-\xEC][\x80-\xBF][\x80-\xBF] |
            [\xED][\x80-\x9F][\x80-\xBF] |
            [\xEE\xEF][\x80-\xBF][\x80-\xBF] |                # UTF8-3
            [\xF0][\x90-\xBF][\x80-\xBF][\x80-\xBF] |
            [\xF1-\xF3][\x80-\xBF][\x80-\xBF][\x80-\xBF] |
            [\xF4][\x80-\x8F][\x80-\xBF][\x80-\xBF] |           # UTF8-4
            [\x80-\xFF]
          )}{
            my $c = $1;
            if (length ($c) == 1) {
              $c =~ s/(.)/sprintf '%%%02X', ord $1/ge;
              $c;
            } else {
              my $ch = Encode::decode ('utf8', $c);
              if ($ch =~ /^[\x{00A0}-\x{200D}\x{2010}-\x{2029}\x{202F}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}]/) {
                $c;
              } else {
                $c =~ s/([\x80-\xFF])/sprintf '%%%02X', ord $1/ge;
                $c;
              }
            }
          }gex;
          $v =~ s/([<>"{}|\\\^`\x00-\x20\x7F])/sprintf '%%%02X', ord $1/ge;
          $v = Encode::decode ('utf8', $v);
          $r = bless \$v, <ClassName::ManakaiURIReference>;
        }__;

  @Test:
    @@QName: URIRef.validity.test
    @@PerlDef:
      my $impl;
      __CODE{createURIImplForTest:: $impl => $impl}__;

      for (
        {
          in                     => q<http://foo.example/>,
          get_uri_reference      => q<http://foo.example/>,
          get_uri_reference_3986 => q<http://foo.example/>,
          get_iri_reference      => q<http://foo.example/>,
          get_iri_reference_3987 => q<http://foo.example/>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<http://foo.example/#fragment>,
          get_uri_reference      => q<http://foo.example/#fragment>,
          get_uri_reference_3986 => q<http://foo.example/#fragment>,
          get_iri_reference      => q<http://foo.example/#fragment>,
          get_iri_reference_3987 => q<http://foo.example/#fragment>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => q<http://foo.example/">,
          get_uri_reference      => q<http://foo.example/%22>,
          get_uri_reference_3986 => q<http://foo.example/%22>,
          get_iri_reference      => q<http://foo.example/%22>,
          get_iri_reference_3987 => q<http://foo.example/%22>,
          is_uri_reference => false, is_iri_reference => false,
          is_uri_reference_3986 => false, is_iri_reference_3987 => false,
          is_uri => false, is_iri => false,
          is_uri_3986 => false, is_iri_3987 => false,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => q<http://foo.example/[a]>,
          get_uri_reference      => q<http://foo.example/[a]>,
          get_uri_reference_3986 => q<http://foo.example/[a]>,
          get_iri_reference      => q<http://foo.example/[a]>,
          get_iri_reference_3987 => q<http://foo.example/[a]>,
          is_uri_reference => false, is_iri_reference => false,
          is_uri_reference_3986 => false, is_iri_reference_3987 => false,
          is_uri => false, is_iri => false,
          is_uri_3986 => false, is_iri_3987 => false,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => q<http://[::]/>,
          get_uri_reference      => q<http://[::]/>,
          get_uri_reference_3986 => q<http://[::]/>,
          get_iri_reference      => q<http://[::]/>,
          get_iri_reference_3987 => q<http://[::]/>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<//foo.example/>,
          get_uri_reference      => q<//foo.example/>,
          get_uri_reference_3986 => q<//foo.example/>,
          get_iri_reference      => q<//foo.example/>,
          get_iri_reference_3987 => q<//foo.example/>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => false, is_iri => false,
          is_uri_3986 => false, is_iri_3987 => false,
          is_relative_reference => true, is_relative_iri_reference => true,
          is_relative_reference_3986 => true,
          is_relative_iri_reference_3987 => true,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => q<>,
          get_uri_reference      => q<>,
          get_uri_reference_3986 => q<>,
          get_iri_reference      => q<>,
          get_iri_reference_3987 => q<>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => false, is_iri => false,
          is_uri_3986 => false, is_iri_3987 => false,
          is_relative_reference => true, is_relative_iri_reference => true,
          is_relative_reference_3986 => true,
          is_relative_iri_reference_3987 => true,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => true,
        },
        {
          in                     => qq<http://foo.example/\x{4E00}>,
          get_uri_reference      => qq<http://foo.example/%E4%B8%80>,
          get_uri_reference_3986 => qq<http://foo.example/%E4%B8%80>,
          get_iri_reference      => qq<http://foo.example/\x{4E00}>,
          get_iri_reference_3987 => qq<http://foo.example/\x{4E00}>,
          is_uri_reference => false, is_iri_reference => true,
          is_uri_reference_3986 => false, is_iri_reference_3987 => true,
          is_uri => false, is_iri => true,
          is_uri_3986 => false, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => true,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<http://foo.example/%E4%B8%80>,
          get_uri_reference      => q<http://foo.example/%E4%B8%80>,
          get_uri_reference_3986 => q<http://foo.example/%E4%B8%80>,
          get_iri_reference      => qq<http://foo.example/\x{4E00}>,
          get_iri_reference_3987 => qq<http://foo.example/\x{4E00}>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<ftp://ftp.is.co.za/rfc/rfc1808.txt>,
          get_uri_reference      => q<ftp://ftp.is.co.za/rfc/rfc1808.txt>,
          get_uri_reference_3986 => q<ftp://ftp.is.co.za/rfc/rfc1808.txt>,
          get_iri_reference      => q<ftp://ftp.is.co.za/rfc/rfc1808.txt>,
          get_iri_reference_3987 => q<ftp://ftp.is.co.za/rfc/rfc1808.txt>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<http://www.ietf.org/rfc/rfc2396.txt>,
          get_uri_reference      => q<http://www.ietf.org/rfc/rfc2396.txt>,
          get_uri_reference_3986 => q<http://www.ietf.org/rfc/rfc2396.txt>,
          get_iri_reference      => q<http://www.ietf.org/rfc/rfc2396.txt>,
          get_iri_reference_3987 => q<http://www.ietf.org/rfc/rfc2396.txt>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<ldap://[2001:db8::7]/c=GB?objectClass?one>,
          get_uri_reference      => q<ldap://[2001:db8::7]/c=GB?objectClass?one>,
          get_uri_reference_3986 => q<ldap://[2001:db8::7]/c=GB?objectClass?one>,
          get_iri_reference      => q<ldap://[2001:db8::7]/c=GB?objectClass?one>,
          get_iri_reference_3987 => q<ldap://[2001:db8::7]/c=GB?objectClass?one>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<mailto:John.Doe@example.com>,
          get_uri_reference      => q<mailto:John.Doe@example.com>,
          get_uri_reference_3986 => q<mailto:John.Doe@example.com>,
          get_iri_reference      => q<mailto:John.Doe@example.com>,
          get_iri_reference_3987 => q<mailto:John.Doe@example.com>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<news:comp.infosystems.www.servers.unix>,
          get_uri_reference      => q<news:comp.infosystems.www.servers.unix>,
          get_uri_reference_3986 => q<news:comp.infosystems.www.servers.unix>,
          get_iri_reference      => q<news:comp.infosystems.www.servers.unix>,
          get_iri_reference_3987 => q<news:comp.infosystems.www.servers.unix>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<tel:+1-816-555-1212>,
          get_uri_reference      => q<tel:+1-816-555-1212>,
          get_uri_reference_3986 => q<tel:+1-816-555-1212>,
          get_iri_reference      => q<tel:+1-816-555-1212>,
          get_iri_reference_3987 => q<tel:+1-816-555-1212>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<urn:oasis:names:specification:docbook:dtd:xml:4.1.2>,
          get_uri_reference      => q<urn:oasis:names:specification:docbook:dtd:xml:4.1.2>,
          get_uri_reference_3986 => q<urn:oasis:names:specification:docbook:dtd:xml:4.1.2>,
          get_iri_reference      => q<urn:oasis:names:specification:docbook:dtd:xml:4.1.2>,
          get_iri_reference_3987 => q<urn:oasis:names:specification:docbook:dtd:xml:4.1.2>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<mid:a%b@foo.example>,
          get_uri_reference      => q<mid:a%b@foo.example>,
          get_uri_reference_3986 => q<mid:a%b@foo.example>,
          get_iri_reference      => q<mid:a%b@foo.example>,
          get_iri_reference_3987 => q<mid:a%b@foo.example>,
          is_uri_reference => false, is_iri_reference => false,
          is_uri_reference_3986 => false, is_iri_reference_3987 => false,
          is_uri => false, is_iri => false,
          is_uri_3986 => false, is_iri_3987 => false,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => q<foo://example.com:8042/over/there?name=ferret#nose>,
          get_uri_reference      => q<foo://example.com:8042/over/there?name=ferret#nose>,
          get_uri_reference_3986 => q<foo://example.com:8042/over/there?name=ferret#nose>,
          get_iri_reference      => q<foo://example.com:8042/over/there?name=ferret#nose>,
          get_iri_reference_3987 => q<foo://example.com:8042/over/there?name=ferret#nose>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => q<www.w3.org/Addressing/>,
          get_uri_reference      => q<www.w3.org/Addressing/>,
          get_uri_reference_3986 => q<www.w3.org/Addressing/>,
          get_iri_reference      => q<www.w3.org/Addressing/>,
          get_iri_reference_3987 => q<www.w3.org/Addressing/>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => false, is_iri => false,
          is_uri_3986 => false, is_iri_3987 => false,
          is_relative_reference => true, is_relative_iri_reference => true,
          is_relative_reference_3986 => true,
          is_relative_iri_reference_3987 => true,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => q<g;x=1/../y>,
          get_uri_reference      => q<g;x=1/../y>,
          get_uri_reference_3986 => q<g;x=1/../y>,
          get_iri_reference      => q<g;x=1/../y>,
          get_iri_reference_3987 => q<g;x=1/../y>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => false, is_iri => false,
          is_uri_3986 => false, is_iri_3987 => false,
          is_relative_reference => true, is_relative_iri_reference => true,
          is_relative_reference_3986 => true,
          is_relative_iri_reference_3987 => true,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => q<eXAMPLE://a/./b/../b/%63/%7bfoo%7d>,
          get_uri_reference      => q<eXAMPLE://a/./b/../b/%63/%7bfoo%7d>,
          get_uri_reference_3986 => q<eXAMPLE://a/./b/../b/%63/%7bfoo%7d>,
          get_iri_reference      => q<eXAMPLE://a/./b/../b/c/%7bfoo%7d>,
          get_iri_reference_3987 => q<eXAMPLE://a/./b/../b/c/%7bfoo%7d>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => q<ftp://cnn.example.com&story=breaking_news@10.0.0.1/top_story.htm>,
          get_uri_reference      => q<ftp://cnn.example.com&story=breaking_news@10.0.0.1/top_story.htm>,
          get_uri_reference_3986 => q<ftp://cnn.example.com&story=breaking_news@10.0.0.1/top_story.htm>,
          get_iri_reference      => q<ftp://cnn.example.com&story=breaking_news@10.0.0.1/top_story.htm>,
          get_iri_reference_3987 => q<ftp://cnn.example.com&story=breaking_news@10.0.0.1/top_story.htm>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://r\xE9sum\xE9.example.org>,
          get_uri_reference      => qq<http://r%C3%A9sum%C3%A9.example.org>,
          get_uri_reference_3986 => qq<http://r%C3%A9sum%C3%A9.example.org>,
          get_iri_reference      => qq<http://r\xE9sum\xE9.example.org>,
          get_iri_reference_3987 => qq<http://r\xE9sum\xE9.example.org>,
          is_uri_reference => false, is_iri_reference => true,
          is_uri_reference_3986 => false, is_iri_reference_3987 => true,
          is_uri => false, is_iri => true,
          is_uri_3986 => false, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => true,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://r%C3%A9sum%C3%A9.example.org>,
          get_uri_reference      => qq<http://r%C3%A9sum%C3%A9.example.org>,
          get_uri_reference_3986 => qq<http://r%C3%A9sum%C3%A9.example.org>,
          get_iri_reference      => qq<http://r\xE9sum\xE9.example.org>,
          get_iri_reference_3987 => qq<http://r\xE9sum\xE9.example.org>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://www.example.org/red%09ros\xE9#red>,
          get_uri_reference      => qq<http://www.example.org/red%09ros%C3%A9#red>,
          get_uri_reference_3986 => qq<http://www.example.org/red%09ros%C3%A9#red>,
          get_iri_reference      => qq<http://www.example.org/red%09ros\xE9#red>,
          get_iri_reference_3987 => qq<http://www.example.org/red%09ros\xE9#red>,
          is_uri_reference => false, is_iri_reference => true,
          is_uri_reference_3986 => false, is_iri_reference_3987 => true,
          is_uri => false, is_iri => true,
          is_uri_3986 => false, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://www.example.org/red%09ros%c3%a9#red>,
          get_uri_reference      => qq<http://www.example.org/red%09ros%c3%a9#red>,
          get_uri_reference_3986 => qq<http://www.example.org/red%09ros%c3%a9#red>,
          get_iri_reference      => qq<http://www.example.org/red%09ros\xE9#red>,
          get_iri_reference_3987 => qq<http://www.example.org/red%09ros\xE9#red>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => false,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => false,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://example.com/\x{10300}\x{10301}\x{10302}>,
          get_uri_reference      => qq<http://example.com/%F0%90%8C%80%F0%90%8C%81%F0%90%8C%82>,
          get_uri_reference_3986 => qq<http://example.com/%F0%90%8C%80%F0%90%8C%81%F0%90%8C%82>,
          get_iri_reference      => qq<http://example.com/\x{10300}\x{10301}\x{10302}>,
          get_iri_reference_3987 => qq<http://example.com/\x{10300}\x{10301}\x{10302}>,
          is_uri_reference => false, is_iri_reference => true,
          is_uri_reference_3986 => false, is_iri_reference_3987 => true,
          is_uri => false, is_iri => true,
          is_uri_3986 => false, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => false, is_absolute_iri => true,
          is_absolute_uri_3986 => false, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://example.com/%F0%90%8C%80%F0%90%8C%81%F0%90%8C%82>,
          get_uri_reference      => qq<http://example.com/%F0%90%8C%80%F0%90%8C%81%F0%90%8C%82>,
          get_uri_reference_3986 => qq<http://example.com/%F0%90%8C%80%F0%90%8C%81%F0%90%8C%82>,
          get_iri_reference      => qq<http://example.com/\x{10300}\x{10301}\x{10302}>,
          get_iri_reference_3987 => qq<http://example.com/\x{10300}\x{10301}\x{10302}>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://www.example.org/r%E9sum%E9.html>,
          get_uri_reference      => qq<http://www.example.org/r%E9sum%E9.html>,
          get_uri_reference_3986 => qq<http://www.example.org/r%E9sum%E9.html>,
          get_iri_reference      => qq<http://www.example.org/r%E9sum%E9.html>,
          get_iri_reference_3987 => qq<http://www.example.org/r%E9sum%E9.html>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://www.example.org/r%E9sum%e9.html>,
          get_uri_reference      => qq<http://www.example.org/r%E9sum%e9.html>,
          get_uri_reference_3986 => qq<http://www.example.org/r%E9sum%e9.html>,
          get_iri_reference      => qq<http://www.example.org/r%E9sum%E9.html>,
          get_iri_reference_3987 => qq<http://www.example.org/r%E9sum%E9.html>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://xn--99zt52a.example.org/%e2%80%ae>,
          get_uri_reference      => qq<http://xn--99zt52a.example.org/%e2%80%ae>,
          get_uri_reference_3986 => qq<http://xn--99zt52a.example.org/%e2%80%ae>,
          get_iri_reference      => qq<http://xn--99zt52a.example.org/%E2%80%AE>,
          get_iri_reference_3987 => qq<http://xn--99zt52a.example.org/%E2%80%AE>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
        {
          in                     => qq<http://example.org/%7Euser>,
          get_uri_reference      => qq<http://example.org/%7Euser>,
          get_uri_reference_3986 => qq<http://example.org/%7Euser>,
          get_iri_reference      => qq<http://example.org/~user>,
          get_iri_reference_3987 => qq<http://example.org/~user>,
          is_uri_reference => true, is_iri_reference => true,
          is_uri_reference_3986 => true, is_iri_reference_3987 => true,
          is_uri => true, is_iri => true,
          is_uri_3986 => true, is_iri_3987 => true,
          is_relative_reference => false, is_relative_iri_reference => false,
          is_relative_reference_3986 => false,
          is_relative_iri_reference_3987 => false,
          is_absolute_uri => true, is_absolute_iri => true,
          is_absolute_uri_3986 => true, is_absolute_iri_3987 => true,
          is_empty_reference => false,
        },
      ) {
        my $uri1 = $impl-><M::URIImplementation.createURIReference> ($_->{in});
 
        for my $method (qw/get_uri_reference get_uri_reference_3986
                           get_iri_reference get_iri_reference_3987/) {
          $test->id ($_->{in}.'.'.$method);
          $test->assert_equals ($uri1->$method-><AG::URIReference.uriReference>,
                                $_->{$method});
        }
 
        for my $method (qw/is_uri is_iri is_uri_3986 is_iri_3987
                           is_uri_reference is_iri_reference
                           is_uri_reference_3986 is_iri_reference_3987
                           is_relative_reference is_relative_iri_reference
                           is_relative_reference_3986
                           is_relative_iri_reference_3987
                           is_absolute_uri is_absolute_iri
                           is_absolute_uri_3986 is_absolute_iri_3987
                           is_empty_reference/) {
          $test->id ($_->{in}.'.'.$method);
          my $tm = $_->{$method} ? 'assert_true' : 'assert_false';
          $test->$tm ($uri1->$method);
        }
      }

  @Method:
    @@Name: getAbsoluteReference
    @@enDesc:
      Returns the target DOM URI for the DOM URI resolved as per
      the latest version of the URI specification.

        {NOTE::
          At the time of writing, RFC 3986 is the latest version
          of the URI specification.  RFC 3987 shares the same
          resolution algorithm as RFC 3986.  The method must
          return the same result as <M::URIReference.getAbsoluteReference3986>
          or <M::URIReference.getAbsoluteReference3987> would do.
        }
    @@Param:
      @@@Name: base
      @@@Type: URIReference
      @@@enDesc:
        The base DOM URI against which the DOM URI is resolved.
      @@@enDesc:
        @@@@ddid:perl
        @@@@@:
          For Perl binding, any value that can be specified
          as the parameter to the <M::URIImplementation.createURIReference>
          method can be set to the <P::base> parameter.
    @@NamedParam:
      @@@Name: nonStrict
      @@@Type: idl|boolean||ManakaiDOM|all
      @@@enDesc:
        Whether the resolution is done in the strict mode or not.
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The target DOM URI.
      @@@PerlDef:
        __DEEP{
          $r = $self-><M::URIReference.getAbsoluteReference3986>
                        ($base, non_strict => $nonStrict);
        }__;

  @Method:
    @@Name: getAbsoluteReference3986
    @@DISPerl:methodName: get_absolute_reference_3986
    @@enDesc:
      Returns the target DOM URI for the DOM URI resolved as per RFC 3986.

      The resolution is done according to the algorithm shown in
      RFC 3986 section 5.2 and a new <IF::URIReference>
      object containing the result target DOM URI is returned by the method.

      The method <kwd:MUST> parse DOM URIs into five components 
      as described in the RFC 3986 algorithm by the definition 
      of attributes <A::URIReference.uriScheme>, <A::URIReference.uriAuthority>,
      <A::URIReference.uriPath>, <A::URIReference.uriQuery>, and
      <A::URIReference.uriFragment>.  It is intended that for
      conforming RFC 3986 URI references they returns the identical
      set of components as described in RFC 3986.

      The method <kwd:MUST-NOT> perform any normalization to DOM URIs
      <SRC::RFC 3986 5.2.1>.  Applications can invoke appropriate
      methods before or after the relative reference resolution if desired.
    @@Param:
      @@@Name: base
      @@@Type: URIReference
      @@@enDesc:
        The base DOM URI against which the DOM URI is resolved.

        If the scheme component of the <P::base> is missing, then
        the result is undefined.
      @@@enDesc:
        @@@@ddid:perl
        @@@@@:
          For Perl binding, any value that can be specified
          as the parameter to the <M::URIImplementation.createURIReference>
          method can be set to the <P::base> parameter.
    @@NamedParam:
      @@@Name: nonStrict
      @@@Type: idl|boolean||ManakaiDOM|all
      @@@enDesc:
        Whether the resolution is done in the strict mode or not.
      @@@TrueCase:
        @@@@enDesc:
          The <CODE::strict> flag in the algorithm in RFC 3986 section
          5.2.2 is set to <EM::<DOM::false>>.
      @@@TrueCase:
        @@@@enDesc:
          The <CODE::strict> flag in the algorithm in RFC 3986 section
          5.2.2 is set to <EM::<DOM::true>>.
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The target DOM URI.

          {NOTE::
            The result DOM URI might not be a conforming RFC 3986
            URI if the original DOM URI is not a conforming RFC 3986
            URI reference and / or the <P::base> DOM URI is not a
            conforming URI.

            The result DOM URI might not be a conforming RFC 3987
            IRI if the original DOM URI is not a conforming RFC 3987
            IRI reference and / or the <P::base> DOM URI is not a
            conforming IRI.
          }
      @@@PerlDef:
        __DEEP{
          ## -- Decomposition
          my ($b_scheme, $b_auth, $b_path, $b_query, $b_frag);
          my ($r_scheme, $r_auth, $r_path, $r_query, $r_frag);

          if ($$self =~ m!\A(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?\z!s) {
            ($r_scheme, $r_auth, $r_path, $r_query, $r_frag)
              = ($1, $2, $3, $4, $5);
          } else { # unlikely happen
            ($r_scheme, $r_auth, $r_path, $r_query, $r_frag)
              = (null, null, '', null, null);
          }
          my $ba = ref $base eq 'SCALAR'
                     ? $base
                     : ref $base eq <ClassName::ManakaiURIReference>
                         ? $base
                         : ref $base
                             ? \"$base"
                             : \$base;
          if ($$ba =~ m!\A(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?\z!s) {
            ($b_scheme, $b_auth, $b_path, $b_query, $b_frag)
              = (defined $1 ? $1 : '', $2, $3, $4, $5);
          } else { # unlikely happen
            ($b_scheme, $b_auth, $b_path, $b_query, $b_frag)
              = ('', null, '', null, null);
          }

          ## -- Merge
          my $path_merge = sub ($$) {
            my ($bpath, $rpath) = @_;
            if ($bpath eq '') {
              return '/'.$rpath;
            }
            $bpath =~ s/[^\/]*\z//;
            return $bpath . $rpath;
          }; # merge

          ## -- Removing Dot Segments
          my $remove_dot_segments = sub ($) {
            local $_ = shift;
            my $buf = '';
            L: while (length $_) {
              next L if s/^\.\.?\///;
              next L if s/^\/\.(?:\/|\z)/\//;
              if (s/^\/\.\.(\/|\z)/\//) {
                $buf =~ s/\/?[^\/]*$//;
                next L;
              }
              last Z if s/^\.\.?\z//;
              s/^(\/?[^\/]*)//;
              $buf .= $1;
            }
            return $buf;
          }; # remove_dot_segments

          ## -- Transformation
          my ($t_scheme, $t_auth, $t_path, $t_query, $t_frag);

          if ($nonStrict and $r_scheme eq $b_scheme) {
            undef $r_scheme;
          }

          if (defined $r_scheme) {
            $t_scheme = $r_scheme;
            $t_auth   = $r_auth;
            $t_path   = $remove_dot_segments->($r_path);
            $t_query  = $r_query;
          } else {
            if (defined $r_auth) {
              $t_auth  = $r_auth;
              $t_path  = $remove_dot_segments->($r_path);
              $t_query = $r_query;
            } else {
              if ($r_path =~ /\A\z/) {
                $t_path = $b_path;
                if (defined $r_query) {
                  $t_query = $r_query;
                } else {
                  $t_query = $b_query;
                }
              } elsif ($r_path =~ /^\//) {
                $t_path  = $remove_dot_segments->($r_path);
                $t_query = $r_query;
              } else {
                $t_path  = $path_merge->($b_path, $r_path);
                $t_path  = $remove_dot_segments->($t_path);
                $t_query = $r_query;
              }
              $t_auth = $b_auth;
            }
            $t_scheme = $b_scheme;
          }
          $t_frag = $r_frag;

          ## -- Recomposition
          my $result  = ''                                      ;
          $result .=        $t_scheme . ':' if defined $t_scheme;
          $result .= '//' . $t_auth         if defined $t_auth  ;
          $result .=        $t_path                             ;
          $result .= '?'  . $t_query        if defined $t_query ;
          $result .= '#'  . $t_frag         if defined $t_frag  ;

          $r = bless \$result, <ClassName::ManakaiURIReference>;
        }__;

    @@Test:
      @@@QName: URIRef.getAbsRef.input.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        my $ref = $impl-><M::URIImplementation.createURIReference> ('../foo');

        $test->id ('string');
        my $t1 = $ref-><M::URIReference.getAbsoluteReference>
                         (q<http://foo.example/bar/baz>);
        $test->assert_equals ($t1-><AG::URIReference.uriReference>,
                              q<http://foo.example/foo>);

        $test->id ('stringref');
        my $t2 = $ref-><M::URIReference.getAbsoluteReference>
                         (\q<http://foo.example/bar/baz>);
        $test->assert_equals ($t2-><AG::URIReference.uriReference>,
                              q<http://foo.example/foo>);

        $test->id ('uriref');
        my $t3 = $ref-><M::URIReference.getAbsoluteReference>
                         ($impl-><M::URIImplementation.createURIReference>
                                   (q<http://foo.example/bar/baz>));
        $test->assert_equals ($t3-><AG::URIReference.uriReference>,
                              q<http://foo.example/foo>);

    @@Test:
      @@@QName: URIRef.getAbsRef.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          ## From RFC 3986
          ["g:h"           =>  "g:h"],
          ["g"             =>  "http://a/b/c/g"],
          ["./g"           =>  "http://a/b/c/g"],
          ["g/"            =>  "http://a/b/c/g/"],
          ["/g"            =>  "http://a/g"],
          ["//g"           =>  "http://g"],
          ["?y"            =>  "http://a/b/c/d;p?y"],
          ["g?y"           =>  "http://a/b/c/g?y"],
          ["#s"            =>  "http://a/b/c/d;p?q#s"],
          ["g#s"           =>  "http://a/b/c/g#s"],
          ["g?y#s"         =>  "http://a/b/c/g?y#s"],
          [";x"            =>  "http://a/b/c/;x"],
          ["g;x"           =>  "http://a/b/c/g;x"],
          ["g;x?y#s"       =>  "http://a/b/c/g;x?y#s"],
          [""              =>  "http://a/b/c/d;p?q"],
          ["."             =>  "http://a/b/c/"],
          ["./"            =>  "http://a/b/c/"],
          [".."            =>  "http://a/b/"],
          ["../"           =>  "http://a/b/"],
          ["../g"          =>  "http://a/b/g"],
          ["../.."         =>  "http://a/"],
          ["../../"        =>  "http://a/"],
          ["../../g"       =>  "http://a/g"],
          ["../../../g"    =>  "http://a/g"],
          ["../../../../g" =>  "http://a/g"],
          ["/./g"          =>  "http://a/g"],
          ["/../g"         =>  "http://a/g"],
          ["g."            =>  "http://a/b/c/g."],
          [".g"            =>  "http://a/b/c/.g"],
          ["g.."           =>  "http://a/b/c/g.."],
          ["..g"           =>  "http://a/b/c/..g"],
          ["./../g"        =>  "http://a/b/g"],
          ["./g/."         =>  "http://a/b/c/g/"],
          ["g/./h"         =>  "http://a/b/c/g/h"],
          ["g/../h"        =>  "http://a/b/c/h"],
          ["g;x=1/./y"     =>  "http://a/b/c/g;x=1/y"],
          ["g;x=1/../y"    =>  "http://a/b/c/y"],
          ["g?y/./x"       =>  "http://a/b/c/g?y/./x"],
          ["g?y/../x"      =>  "http://a/b/c/g?y/../x"],
          ["g#s/./x"       =>  "http://a/b/c/g#s/./x"],
          ["g#s/../x"      =>  "http://a/b/c/g#s/../x"],
          ["http:g"        =>  "http:g"],
          ## From "http://www.gbiv.com/protocols/uri/test/rel_examples1.html"
          ["http:"         =>  "http:"],
          ## From "http://www.w3.org/2004/04/uri-rel-test.html"
          ["./g:h"         =>  "http://a/b/c/g:h"],
        ) {
          my $ref = $impl-><M::URIImplementation.createURIReference> ($_->[0]);

          $test->id ($_->[0]);
          my $t = $ref-><M::URIReference.getAbsoluteReference>
                          (q<http://a/b/c/d;p?q>);
          $test->assert_equals ($t-><AG::URIReference.uriReference>,
                                $_->[1]);

          $test->id ($_->[0].'.3986');
          my $t1 = $ref-><M::URIReference.getAbsoluteReference3986>
                           (q<http://a/b/c/d;p?q>);
          $test->assert_equals ($t1-><AG::URIReference.uriReference>,
                                $_->[1]);

          $test->id ($_->[0].'.3987');
          my $t2 = $ref-><M::URIReference.getAbsoluteReference3987>
                           (q<http://a/b/c/d;p?q>);
          $test->assert_equals ($t2-><AG::URIReference.uriReference>,
                                $_->[1]);
        }

    @@Test:
      @@@QName: URIRef.getAbsRef.nonStrict.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        ## From "http://www.gbiv.com/protocols/uri/test/rel_examples1.html"

        $test->id (1);
        my $ref = $impl-><M::URIImplementation.createURIReference>
                           (q<http:g>);
        my $t1 = $ref-><M::URIReference.getAbsoluteReference>
                         (q<http://a/b/c/d;p?q>, non_strict => true);
        $test->assert_equals ($t1-><AG::URIReference.uriReference>,
                              q<http://a/b/c/g>);

        $test->id (2);
        my $ref2 = $impl-><M::URIImplementation.createURIReference>
                           (q<http:>);
        my $t2 = $ref2-><M::URIReference.getAbsoluteReference>
                         (q<http://a/b/c/d;p?q>, non_strict => true);
        $test->assert_equals ($t2-><AG::URIReference.uriReference>,
                              q<http://a/b/c/d;p?q>);

  @Method:
    @@Name: getAbsoluteReference3987
    @@DISPerl:methodName: get_absolute_reference_3987
    @@enDesc:
      Returns the target DOM URI for the DOM URI resolved as per RFC 3987.
      Since RFC 3987 references RFC 3986 for the resolution algorithm,
      the method <kwd:MUST> act as <M::URIReference.getAbsoluteReference3986>
      would do.
    @@Param:
      @@@Name: base
      @@@Type: URIReference
      @@@enDesc:
        The base DOM URI against which the DOM URI is resolved.
      @@@enDesc:
        @@@@ddid:perl
        @@@@@:
          For Perl binding, any value that can be specified
          as the parameter to the <M::URIImplementation.createURIReference>
          method can be set to the <P::base> parameter.
    @@NamedParam:
      @@@Name: nonStrict
      @@@Type: idl|boolean||ManakaiDOM|all
      @@@enDesc:
        Whether the resolution is done in the strict mode or not.
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The target DOM URI.

          {NOTE::
            The result DOM URI might not be a conforming RFC 3987
            IRI if the original DOM URI is not a conforming RFC 3987
            IRI reference and / or the <P::base> DOM URI is not a
            conforming IRI.
          }
      @@@PerlDef:
        __DEEP{
          $r = $self-><M::URIReference.getAbsoluteReference3986>
                        ($base, non_strict => $nonStrict);
        }__;

  @Method:
    @@Name: isSameDocumentReference
    @@enDesc:
      Whether the DOM URI is a same-document reference or not as per
      the latest version of the URI specification.

        {NOTE::
          At the time of writing, RFC 3986 is the latest version
          of the URI specification and the method must return
          the same result as the <M::URIReference.isSameDocumentReference>
          would return.
        }
    @@Param:
      @@@Name: base
      @@@Type: URIReference
      @@@enDesc:
        The base DOM URI against which the sameness is tested.
    @@Return:
      @@@Type: idl|boolean||ManakaiDOM|all
      @@@TrueCase:
        @@@@enDesc:
          The DOM URI is a same-document reference.
      @@@FalseCase:
        @@@@enDesc:
          It is <EM::not> sure that the DOM URI is a same-document
          reference.
      @@@PerlDef:
        __DEEP{
          $r = $self-><M::URIReference.isSameDocumentReference3986> ($base);
        }__;

  @Method:
    @@Name: isSameDocumentReference3986
    @@DISPerl:methodName: is_same_document_reference_3986
    @@enDesc:
      Whether the DOM URI is a same-document reference or not as per
      RFC 3986 section 4.4.
    @@Param:
      @@@Name: base
      @@@Type: URIReference
      @@@enDesc:
        The base DOM URI against which the sameness is tested.
        If it does not contain the scheme component, then the result
        is undefined.
      @@@enDesc:
        @@@@ddid:perl
        @@@@@:
          For Perl binding, any value that can be specified
          as the parameter to the <M::URIImplementation.createURIReference>
          method can be set to the <P::base> parameter.
    @@NamedParam:
      @@@Name: nonStrict
      @@@Type: idl|boolean||ManakaiDOM|all
      @@@enDesc:
        Whether the resolution is done in the strict mode or not.
    @@Return:
      @@@Type: idl|boolean||ManakaiDOM|all
      @@@TrueCase:
        @@@@enDesc:
          If the target DOM URI that the
          <M::URIReference.getAbsoluteReference3986>
          method with the same <P::base> parameter would return
          shares the same substring without fragment components and
          the <CHAR::NUMBER SIGN> preceding it if any with the <P::base>
          DOM URI.
      @@@FalseCase:
        @@@@enDesc: Otherwise.
      @@@PerlDef:
        __DEEP{
          if (substr ($$self, 0, 1) eq '#') {
            $r = true;
          } else {
            my $target = $self-><M::URIReference.getAbsoluteReference3986>
                                  ($base, non_strict => $nonStrict)
                              -><AG::URIReference.uriReference>;
            $target =~ s/#.*\z//;
            my $ba = ref $base eq 'SCALAR'
                       ? $$base
                       : ref $base eq <ClassName::ManakaiURIReference>
                           ? $$base
                           : ref $base
                               ? "$base"
                               : $base;
            $ba =~ s/#.*\z//;
            $r = ($target eq $ba);
          }
        }__;

    @@Test:
      @@@QName: URIRef.isSameDocRef.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        my $base = q<http://www/a/b/c#def>;

        for (
          [q<http://www.example/>, false],
          [q<#fragment>, true],
          [q<c#def>, true],
          [q<http://www/a/b/c#def>, true],
          [q</a/b/c/>, false],
          [q<>, true],
          [q<//www/a/b/c>, true],
        ) {
          my $ref = $impl-><M::URIImplementation.createURIReference> ($_->[0]);
          my $method = $_->[1] ? 'assert_true' : 'assert_false';
          $test->id ($_->[0]);
          $test->$method
                   ($ref-><M::URIReference.isSameDocumentReference> ($base));
          $test->id ($_->[0].'.3986');
          $test->$method
                   ($ref-><M::URIReference.isSameDocumentReference3986>
                            ($base));
        }

  @Method:
    @@Name: getRelativeReference
    @@enDesc:
      Returns a DOM URI that references the same target URI
      as the DOM URI according to the latest version of
      the URI specification.  The method <kwd:SHOULD> return as simple
      DOM URI as possible.

      {P:: How it computes the relative reference
      is implementation dependent.  However, it at least meets the conditions
      below:

        - If the DOM URI is a legal RFC 3986 URI reference, then
          the result DOM URI <kwd:MUST> be a legal RFC 3986 URI reference
          that references the target URI of the original URI.

        - If the DOM URI is a legal RFC 3987 IRI, then
          the result DOM URI <kwd:MUST> be a legal RFC 3987 IRI reference
          that references either the a IRI
          that is literally equivalent to the target IRI of the original IRI
          when zero or more URI-to-IRI or IRI-to-URI convertion
          <SRC::RFC 3987> is performed.
      }

      {ISSUE::
        Should <CODE::getRelativeReference3986> be introduced?
        Should <CODE::getRelativeIRIReference3987> 
        and <CODE::getRelativeIRIReference> also be?
      }
    @@Param:
      @@@Name: base
      @@@Type: URIReference
      @@@enDesc:
        The base DOM URI when against which the result 
        DOM URI is resolved then it must be the same DOM
        URI as the target DOM URI of the DOM URI.
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The result DOM URI.
      @@@PerlDef:
        __DEEP{
          my @base;
          my $ba = ref $base eq 'SCALAR'
                     ? $base
                     : ref $base eq <ClassName::ManakaiURIReference>
                         ? $base
                         : ref $base
                             ? \"$base"
                             : \$base;
          if ($$ba =~ m!\A(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?\z!) {
            (@base) = (defined $1 ? $1 : '', $2, $3, $4, $5);
          } else { # unlikeley happen
            (@base) = ('', null, '', null, null);
          }
          my @t;
          my $t = $self-><M::URIReference.getAbsoluteReference> ($base);
          if ("$t" =~ m!\A(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*)(?:\?([^#]*))?(?:#(.*))?\z!) {
            (@t) = (defined $1 ? $1 : '', $2, $3, $4, $5);
          } else { # unlikeley happen
            (@t) = ('', null, '', null, null);
          }

          my @ref;
          R: {
            ## Scheme
            if ($base[0] ne $t[0]) {
              (@ref) = @t;
              last R;
            }

            ## Authority
            if (not defined $base[1] and not defined $t[1]) {
              (@ref) = @t;
              last R;
            } elsif (not defined $t[1]) {
              (@ref) = @t;
              last R;
            } elsif (not defined $base[1]) {
              (@ref) = @t;
              last R;
            } elsif ($base[1] ne $t[1]) {
              (@ref) = @t;
              last R;
            }
            ## NOTE: Avoid uncommon references.

            if (defined $t[4] and                                # fragment
                $t[2] eq $base[2] and                            # path
                ((not defined $t[3] and not defined $base[3]) or # query
                 (defined $t[3] and defined $base[3] and $t[3] eq $base[3]))) {
              (@ref) = (null, null, '', null, $t[4]);
              last R;
            }

            ## Path
            my @tpath = split m!/!, $t[2], -1;
            my @bpath = split m!/!, $base[2], -1;
            if (@tpath < 1 or @bpath < 1) {  ## No |/|
              (@ref) = @t;
              last R;
            }
            my $bpl;

            ## Removes common segments
            while (@tpath and @bpath and $tpath[0] eq $bpath[0]) {
              shift @tpath;
              $bpl = shift @bpath;
            }

            if (@tpath == 0) {
              if (@bpath == 0) { ## Avoid empty path for backward compatibility
                unshift @tpath, $bpl;
              } else {
                unshift @tpath, '..', $bpl;
              }
            } elsif (@bpath == 0) {
              unshift @tpath, $bpl;
            }

            unshift @tpath, ('..') x (@bpath - 1) if @bpath > 1;

            unshift @tpath, '.' if $tpath[0] eq '' or
                                   $tpath[0] =~ /:/;

            (@ref) = (null, null, (join '/', @tpath), $t[3], $t[4]);
          } # R

          ## -- Recomposition
          my $result = ''                                   ;
          $result .=        $ref[0] . ':' if defined $ref[0];  # scheme;
          $result .= '//' . $ref[1]       if defined $ref[1];  # authority
          $result .=        $ref[2]                         ;  # path
          $result .= '?'  . $ref[3]       if defined $ref[3];  # query
          $result .= '#'  . $ref[4]       if defined $ref[4];  # fragment

          $r = bless \$result, <ClassName::ManakaiURIReference>;          
        }__;

    @@Test:
      @@@QName: URIRef.getRelRef.input.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        my $ref = $impl-><M::URIImplementation.createURIReference>
                           (q<http://www.example/a>);
        
        $test->id ('string');
        my $rel1 = $ref-><M::URIReference.getRelativeReference>
                           (q<http://www.example/>);
        $test->assert_equals ($rel1-><AG::URIReference.uriReference>,
                              'a');
        
        $test->id ('stringref');
        my $rel2 = $ref-><M::URIReference.getRelativeReference>
                           (\q<http://www.example/>);
        $test->assert_equals ($rel2-><AG::URIReference.uriReference>,
                              'a');
        
        $test->id ('string');
        my $rel3 = $ref-><M::URIReference.getRelativeReference>
                           ($impl-><M::URIImplementation.createURIReference>
                                     (q<http://www.example/>));
        $test->assert_equals ($rel3-><AG::URIReference.uriReference>,
                              'a');

    @@Test:
      @@@QName: URIRef.getRelRef.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        for (
          [q<http://www.example/>, q<http://www.example/>, q<./>],
          [q<http://www.example/>, q<http://www2.example/>, q<http://www.example/>],
          [q<http://a/b/c/e/f>, q<http://a/b/c/e>, q<e/f>],
          [q<http://a/b/c/e>, q<http://a/b/c/e>, q<e>],
          [q<http://a/b/c/e/>, q<http://a/b/c/e>, q<e/>],
          [q<http://a/b/c/d>, q<http://a/b/c/e>, q<d>],
          [q<http://a/b/c/d/>, q<http://a/b/c/e>, q<d/>],
          [q<http://a/b/c>, q<http://a/b/c/e>, q<../c>],
          [q<http://a/b/c/>, q<http://a/b/c/e>, q<./>],
          [q<http://a/b/>, q<http://a/b/c/e>, q<../>],
          [q<http://a/b>, q<http://a/b/c/e>, q<../../b>],
          [q<http://a/>, q<http://a/b/c/e>, q<../../>],
          [q<http://a>, q<http://a/b/c/e>, q<http://a>],
          [q<http://a/b/d/f>, q<http://a/b/c/e>, q<../d/f>],
          [q<about:blank>, q<http://a/>, q<about:blank>],
          [q<http://a/about:blank>, q<http://a/b>, q<./about:blank>],
          [q<http://a//>, q<http://a/>, q<.//>],
          [q<a>, q<http://a/b/>, q<a>],
          [q<http://a/b#a>, q<http://a/b#b>, q<#a>],
          [q<http://a/c#a>, q<http://a/b#a>, q<c#a>],
          [q<http://a/b/?c>, q<http://a/b/>, q<./?c>],
        ) {
          $test->id ($_->[0].'.'.$_->[1]);
          my $ref = $impl-><M::URIImplementation.createURIReference> ($_->[0]);
          my $rel = $ref-><M::URIReference.getRelativeReference> ($_->[1]);
          $test->assert_equals
                   ($rel-><AG::URIReference.uriReference>,
                    $_->[2]);
        }

  @enImplNote:
    @@ddid: norm
    @@@:
      Normalization

      [RFC 3986 6.2.2], [RFC 3987 5.3.2]
      - Use uppercase letters for any hexadecimal digit
        in percent-encodings [RFC 3986 2.1, 6.2.2.1, RFC 3987 5.3.2.1].
      - Use lowercase letters in |scheme| and |host|
        [RFC 3986 6.2.2.1, RFC 3987 5.3.2.1].
      - Decode any percent-encoded unreserved characters
        [RFC 3986 2.3, 6.2.2.2, RFC 3987 5.3.2.3].
      - dot-segment [RFC 3986 6.2.2.3, RFC 3987 5.3.2.4].

      In addition to |normalize|, scheme-specific normalization.
      [RFC 3986 6.2.3, RFC 3987 5.3.3]

      equivalence property URI

  @enImplNote:
    @@ddid: equiv
    @@@:
      Equivalence
  
      [RFC 3986 6, RFC 3987 5]

      equivalence property URI

  @IntMethod:
    @@Operator:
      @@@@: eq
      @@@ContentType: DISPerl|Perl
    @@enDesc:
      For Perl binding, the <Perl::eq> operator <kwd:MUST> be
      overloaded so that it returnjs equality as strings.
    @@Param:
      @@@Name: v
      @@@Type: idl|any||ManakaiDOM|all
      @@@enDesc:
        Another value to compare.
    @@Return:
      @@@Type: idl|boolean||ManakaiDOM|all
      @@@enDesc:
        The equality.
      @@@PerlDef:
        if (defined $v) {
          __DEEP{
            $r = $v eq $$self;
          }__;
        }

    @@Test:
      @@@QName: URIRef.eq.test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        $test->id ('u=u');
        $test->assert_equals
                 ($impl-><M::URIImplementation.createURIReference> (q<a>),
                  $impl-><M::URIImplementation.createURIReference> (q<a>));

        $test->id ('u!=u');
        $test->assert_not_equals
                 ($impl-><M::URIImplementation.createURIReference> (q<a>),
                  $impl-><M::URIImplementation.createURIReference> (q<b>));

        $test->id ('u=s');
        $test->assert_equals
                 ($impl-><M::URIImplementation.createURIReference> (q<a>),
                  q<a>);

        $test->id ('u!=s');
        $test->assert_not_equals
                 ($impl-><M::URIImplementation.createURIReference> (q<a>),
                  q<b>);

        $test->id ('s=u');
        $test->assert_equals
                 (q<a>,
                  $impl-><M::URIImplementation.createURIReference> (q<a>));

        $test->id ('s!=u');
        $test->assert_not_equals
                 (q<b>,
                  $impl-><M::URIImplementation.createURIReference> (q<a>));

        $test->id ('u!=undef');
        $test->assert_not_equals
                 ($impl-><M::URIImplementation.createURIReference> (q<a>),
                  null);

        $test->id ('undef!=u');
        $test->assert_not_equals
                 (null,
                  $impl-><M::URIImplementation.createURIReference> (q<a>));

  @Method:
    @@Name: cloneURIReference
    @@Operator: DISPerl|CloneMethod
    @@enDesc:
      Creates a new independent <IF::URIReference> object with the same
      <A::URIReference.uriReference> value.
    @@enDesc:
      @@@ddid: p
      @@@@:
        For Perl binding, the <Perl::clone> method <kwd:MUST>
        act as the <M::URIReference.cloneURIReference> would do.
    @@Return:
      @@@Type: URIReference
      @@@enDesc:
        The newly created DOM URI object.
      @@@PerlDef:
        my $v = $$self;
        $r = bless \$v, <ClassName::ManakaiURIReference>;

    @@Test:
      @@@QName: URIRef.clone.Test
      @@@PerlDef:
        my $impl;
        __CODE{createURIImplForTest:: $impl => $impl}__;

        my $ref = $impl-><M::URIImplementation.createURIReference> (q<a>);

        $test->id ('cloneURIRef');
        my $ref2 = $ref-><M::URIReference.cloneURIReference>;
        $test->assert_equals ($ref2-><AG::URIReference.uriReference>, q<a>);

        $test->id ('cloneURIRef.diff');
        $ref2-><AS::URIReference.uriReference> (q<b>);
        $test->assert_equals ($ref-><AG::URIReference.uriReference>, q<a>);

        $test->id ('clone');
        my $ref3 = $ref->clone;
        $test->assert_equals ($ref3-><AG::URIReference.uriReference>, q<a>);

        $test->id ('clone.diff');
        $ref3-><AS::URIReference.uriReference> (q<b>);
        $test->assert_equals ($ref-><AG::URIReference.uriReference>, q<a>);
##URIReference

ResourceDef:
  @QName: String
  @AliasFor: str|DOMString

ElementTypeBinding:
  @Name: enDesc
  @ElementType:
    dis:Description
  @ShadowContent:
    @@lang:en

ElementTypeBinding:
  @Name: enImplNote
  @ElementType:
    dis:Description
  @ShadowContent:
    @@lang:en

ElementTypeBinding:
  @Name: nullCase
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: ManakaiDOM|InCase
    @@Value:
      @@@is-null:1
      @@@ContentType: DISCore|String

ElementTypeBinding:
  @Name: TrueCase
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: ManakaiDOM|InCase
    @@Value:
      @@@@: 1
      @@@ContentType: DISCore|Boolean
    @@Type: idl|boolean||ManakaiDOM|all

ElementTypeBinding:
  @Name: FalseCase
  @ElementType:
    dis:ResourceDef
  @ShadowContent:
    @@DISCore:resourceType: ManakaiDOM|InCase
    @@Value:
      @@@@: 0
      @@@ContentType: DISCore|Boolean
    @@Type: idl|boolean||ManakaiDOM|all