-- Module Location-Expressions (T.422:08/1995)

Location-Expressions {2 8 1 12 0} DEFINITIONS IMPLICIT TAGS ::=
BEGIN

EXPORTS Location-Expression, Basic-Location-Expression, Constituent-Locator;

IMPORTS
  Object-or-Class-Identifier, Content-Portion-Identifier, Style-Identifier
    FROM Identifiers-and-Expressions {2 8 1 5 7}
  --  see ITU-T Rec. T.415 | ISO/IEC 8613-5
  Layout-Class-Descriptor, Layout-Object-Descriptor
    FROM Layout-Descriptors {2 8 1 5 8}
  --  see ITU-T Rec. T.415 | ISO/IEC 8613-5
  Logical-Class-Descriptor, Logical-Object-Descriptor
    FROM Logical-Descriptors {2 8 1 5 9}
  --  see ITU-T Rec. T.415 | ISO/IEC 8613-5
  Presentation-Style-Descriptor, Layout-Style-Descriptor
    FROM Style-Descriptors {2 8 1 5 10}
  --  see ITU-T Rec. T.415 | ISO/IEC 8613-5
  Text-Unit
    FROM Text-Units {2 8 1 5 12}
  --  see ITU-T Rec. T.415 | ISO/IEC 8613-5
  Subprofile-Descriptor, Subprofile-Identifier
    FROM Subprofiles {2 8 1 12 2}
  --  see 9.3
  Link-Class-Descriptor, Link-Descriptor, Link-or-Link-Class-Identifier
    FROM Link-Descriptors {2 8 1 14 3};

--  see ITU-T Rec. T.424 | ISO/IEC 8613-14
--  Location expression
Location-Expression ::= CHOICE {
  basic      [0]  Basic-Location-Expression,
  composite  [1]  Composite-Location-Expression
}

Composite-Location-Expression ::= CHOICE {
  complement    [0]  Location-Expression,
  intersection  [1]  SEQUENCE OF Location-Expression,
  union         [2]  SEQUENCE OF Location-Expression
}

Basic-Location-Expression ::= CHOICE {
  region       [0]  Region-Locator,
  subtree      [1]  Subtree-Locator,
  constituent  [2]  Constituent-Locator
}

Region-Locator ::= SEQUENCE {
  start  [0]  Start-End-Object-Locator,
  end    [1]  Start-End-Object-Locator
}

Start-End-Object-Locator ::= SEQUENCE {
  object        [0]  Object-Locator,
  not-included  [1]  BOOLEAN DEFAULT TRUE
}

Subtree-Locator ::= Object-Locator

Constituent-Locator ::= CHOICE {
  documentProfile      [0]  NULL,
  subprofile           [1]  Subprofile-Locator,
  component            [2]  Component-Locator,
  contentPortion       [3]  Content-Portion-Locator,
  style                [4]  Style-Locator,
  link-or-link-class   [5]  Link-or-Link-Class-Locator,
  constituent-of-type  [6]  Constituent-Type
}

Constituent-Type ::= ENUMERATED {
  layout-object-class(1), layout-object(2), content-portion(3),
  logical-object-class(5), logical-object(6), presentation-style(7),
  layout-style(8), sealed-doc-prof-descriptor(9),
  enciphered-doc-prof-descriptor(10), preenciphered-bodypart-descriptor(11),
  postenciphered-bodypart-descriptor(12), link-class(13), link(14),
  enciphered-link-descriptor(15), subprofile(16)}

--  Subprofile
Subprofile-Locator ::= CHOICE {
  subprofile       [0]  Subprofile-Identifier,
  subprofile-of    [1]  Subprofile-of-argument,
  subprofile-with  [2]  Subprofile-with-argument
}

Subprofile-of-argument ::= Constituent-Locator

Subprofile-with-argument ::=
  AttributeValue-Subprofile-Specification --  The "attribute" and "value" 

--  arguments are grouped together
--  Component locator
Component-Locator ::= CHOICE {
  objectClass  [0]  Object-Class-Locator,
  object       [1]  Object-Locator
}

Object-Class-Locator ::= CHOICE {
  objectClass        [0]  Object-or-Class-Identifier,
  object-class-of    [1]  Object-Class-of-argument,
  object-class-with  [2]  Object-Class-with-argument
}

Object-Class-of-argument ::= Object-Locator

Object-Class-with-argument ::= SEQUENCE {
  attributeValueObject  [0]  AttributeValue-Class-Specification, --  The "attribute" and "value"
  
  --  arguments are grouped together
  defaulting            [1]  BOOLEAN DEFAULT FALSE
}

--  Object locator
Object-Locator ::= CHOICE {
  object       [0]  Object-or-Class-Identifier,
  subord       [1]  Subord-argument,
  object-with  [2]  Object-with-argument
}

Subord-argument ::= SEQUENCE {
  object    [0]  Object-Locator,
  counters  [1]  CountersType OPTIONAL
}

Object-with-argument ::= SEQUENCE {
  attributeValueObject  [0]  AttributeValue-Object-Specification, --  The "attribute" and "value"
  
  --  arguments are grouped together
  object                [1]  Object-Locator OPTIONAL,
  counters              [2]  CountersType OPTIONAL,
  not-defaulting        [3]  BOOLEAN DEFAULT FALSE
}

--  Links
Link-or-Link-Class-Locator ::= CHOICE {
  linkClass  [0]  Link-Class-Locator,
  link       [1]  Link-Locator
}

Link-Class-Locator ::= CHOICE {
  link             [0]  Link-or-Link-Class-Identifier,
  link-class-of    [1]  Link-Class-of-argument,
  link-class-with  [2]  Link-Class-with-arguments
}

Link-Class-of-argument ::= Link-Locator

Link-Class-with-arguments ::=
  AttributeValue-Link-Class-Specification --  The "attribute" and "value" 

--  arguments are grouped together
Link-Locator ::= CHOICE {
  link       [0]  Link-or-Link-Class-Identifier,
  link-with  [1]  Link-with-arguments
}

Link-with-arguments ::= SEQUENCE {
  attributeValueLink  [0]  AttributeValue-Link-Specification, --  The "attribute" and "value" 
  
  --  arguments are grouped together
  not-defaulting      [1]  BOOLEAN DEFAULT FALSE
}

--  Content portion locator
Content-Portion-Locator ::= CHOICE {
  contentPortion  [0]  Content-Portion-Identifier,
  assoc           [1]  Assoc-argument,
  content-with    [2]  Content-with-argument
}

Assoc-argument ::= SEQUENCE {
  component  [0]  Component-Locator,
  counters   [1]  CountersType OPTIONAL
}

Content-with-argument ::= SEQUENCE {
  attributeValueContent  [0]  AttributeValue-Content-Specification, --  The "attribute" and "value"
  
  --  arguments are grouped together
  component              [1]  Component-Locator OPTIONAL,
  counters               [2]  CountersType OPTIONAL,
  not-defaulting         [3]  BOOLEAN DEFAULT FALSE
}

--  Styles
Style-Locator ::= CHOICE {
  style                    [0]  Style-Identifier,
  layout-style-of          [1]  Layout-Style-of-argument,
  presentation-style-of    [2]  Presentation-Style-of-argument,
  layout-style-with        [3]  Layout-Style-with-argument,
  presentation-style-with  [4]  Presentation-Style-with-argument
}

Layout-Style-of-argument ::= Component-Locator

Presentation-Style-of-argument ::= Component-Locator

Layout-Style-with-argument ::= SEQUENCE {
  attributeValueLayoutStyle  [0]  AttributeValue-LayoutStyle-Specification, --  The "attribute" and 
  
  --  "value" arguments are grouped together
  not-defaulting             [1]  BOOLEAN DEFAULT FALSE
}

Presentation-Style-with-argument ::= SEQUENCE {
  attributeValuePresentationStyle
    [0]  AttributeValue-PresentationStyle-Specification,
  --  The "attribute" and
  --   "value" arguments are grouped together
  not-defaulting                   [1]  BOOLEAN DEFAULT FALSE
}

--  Counters
CountersType ::= SEQUENCE {
  start  [0]  INTEGER OPTIONAL,
  end    [1]  INTEGER OPTIONAL
}

--  Attribute-Value specifications
--  Classes
AttributeValue-Class-Specification ::= CHOICE {
  value  [0]  Simple-AttributeValue-Class-Specification,
  range
    [1]  SEQUENCE {start
                     [0]  Simple-AttributeValue-Class-Specification OPTIONAL,
                   end
                     [1]  Simple-AttributeValue-Class-Specification OPTIONAL
  }
}

Simple-AttributeValue-Class-Specification ::= CHOICE {
  layout   [0]  Layout-Class-Descriptor,
  logical  [1]  Logical-Class-Descriptor
}

--  Objects
AttributeValue-Object-Specification ::= CHOICE {
  value  [0]  Simple-AttributeValue-Object-Specification,
  range
    [1]  SEQUENCE {start
                     [0]  Simple-AttributeValue-Object-Specification OPTIONAL,
                   end
                     [1]  Simple-AttributeValue-Object-Specification OPTIONAL
  }
}

Simple-AttributeValue-Object-Specification ::= CHOICE {
  layout   [0]  Layout-Object-Descriptor,
  logical  [1]  Logical-Object-Descriptor
}

--  Link classes
AttributeValue-Link-Class-Specification ::= CHOICE {
  value  [0]  Simple-AttributeValue-Link-Class-Specification,
  range
    [1]  SEQUENCE {start
                     [0]  Simple-AttributeValue-Link-Class-Specification
                       OPTIONAL,
                   end
                     [1]  Simple-AttributeValue-Link-Class-Specification
                       OPTIONAL}
}

Simple-AttributeValue-Link-Class-Specification ::= Link-Class-Descriptor

--  Links
AttributeValue-Link-Specification ::= CHOICE {
  value  [0]  Simple-AttributeValue-Link-Specification,
  range
    [1]  SEQUENCE {start
                     [0]  Simple-AttributeValue-Link-Specification OPTIONAL,
                   end
                     [1]  Simple-AttributeValue-Link-Specification OPTIONAL
  }
}

Simple-AttributeValue-Link-Specification ::= Link-Descriptor

--  Contents
AttributeValue-Content-Specification ::= CHOICE {
  value  [0]  Simple-AttributeValue-Content-Specification,
  range
    [1]  SEQUENCE {start
                     [0]  Simple-AttributeValue-Content-Specification OPTIONAL,
                   end
                     [1]  Simple-AttributeValue-Content-Specification OPTIONAL
  }
}

Simple-AttributeValue-Content-Specification ::= Text-Unit

--  Layout Styles
AttributeValue-LayoutStyle-Specification ::= CHOICE {
  value  [0]  Simple-AttributeValue-LayoutStyle-Specification,
  range
    [1]  SEQUENCE {start
                     [0]  Simple-AttributeValue-LayoutStyle-Specification
                       OPTIONAL,
                   end
                     [1]  Simple-AttributeValue-LayoutStyle-Specification
                       OPTIONAL}
}

Simple-AttributeValue-LayoutStyle-Specification ::= Layout-Style-Descriptor

--  Presentation Styles
AttributeValue-PresentationStyle-Specification ::= CHOICE {
  value  [0]  Simple-AttributeValue-PresentationStyle-Specification,
  range
    [1]  SEQUENCE {start
                     [0]  Simple-AttributeValue-PresentationStyle-Specification
                       OPTIONAL,
                   end
                     [1]  Simple-AttributeValue-PresentationStyle-Specification
                       OPTIONAL}
}

Simple-AttributeValue-PresentationStyle-Specification ::=
  Presentation-Style-Descriptor

--  Subprofiles
AttributeValue-Subprofile-Specification ::= CHOICE {
  value  [0]  Simple-AttributeValue-Subprofile-Specification,
  range
    [1]  SEQUENCE {start
                     [0]  Simple-AttributeValue-Subprofile-Specification
                       OPTIONAL,
                   end
                     [1]  Simple-AttributeValue-Subprofile-Specification
                       OPTIONAL}
}

Simple-AttributeValue-Subprofile-Specification ::= Subprofile-Descriptor

END

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