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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../compiler.html" > Inform7 Modules< / a > < / li > < li > < a href = "index.html" > if< / a > < / li > < li > < a href = "index.html#3" > Chapter 3: Space and Time< / a > < / li > < li > < b > Spatial Relations< / b > < / li > < / ul > < / div >
< p class = "purpose" > A continuation of the Spatial plugin which defines the binary predicates corresponding to basic spatial relationships.< / p >
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< ul class = "toc" > < li > < a href = "3-sr.html#SP1" > § 1. Definitions< / a > < / li > < li > < a href = "3-sr.html#SP3" > § 3. Initial stock< / a > < / li > < li > < a href = "3-sr.html#SP4" > § 4. Second stock< / a > < / li > < li > < a href = "3-sr.html#SP5" > § 5. Typechecking< / a > < / li > < li > < a href = "3-sr.html#SP6" > § 6. Assertion< / a > < / li > < li > < a href = "3-sr.html#SP7" > § 7. Compilation< / a > < / li > < li > < a href = "3-sr.html#SP8" > § 8. Problem message text< / a > < / li > < / ul > < hr class = "tocbar" >
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< p class = "commentary firstcommentary" > < a id = "SP1" > < / a > < b > § 1. Definitions. < / b > < / p >
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< p class = "commentary firstcommentary" > < a id = "SP2" > < / a > < b > § 2. < / b > So this section of code is all about the following:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "comment-syntax" > fundamental spatial relationships< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_containment< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_support< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_incorporation< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_carrying< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_holding< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_wearing< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > room_containment_predicate< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "comment-syntax" > indirect spatial relationships< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_visibility< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_touchability< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_concealment< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R_enclosure< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP3" > < / a > < b > § 3. Initial stock. < / b > These relations are all hard-wired in.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > PL::SpatialRelations::REL_create_initial_stock< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-sr.html#SP3_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Make built-in spatial relationships< / span > < span class = "named-paragraph-number" > 3.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-sr.html#SP3_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Make built-in indirect spatial relationships< / span > < span class = "named-paragraph-number" > 3.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < a href = "3-mcr.html#SP3" class = "function-link" > < span class = "function-syntax" > PL::MapDirections::create_relations< / span > < / a > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > < / span > < a href = "3-rgn.html#SP16" class = "function-link" > < span class = "function-syntax" > PL::Regions::create_relations< / span > < / a > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP3_1" > < / a > < b > § 3.1. < / b > Containment, support, incorporation, carrying, holding, wearing and
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possession. The "loop parent optimisation" is explained elsewhere, but
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the basic idea is that given a fixed \(y\) you can search for all \(x\) such
that \(B(x, y)\) by looking at the object-tree children of \(y\) at run-time.
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On a large work of IF, this cuts the number of cases to check by a factor
of 100 or more. (But it can't be used for component parts, since those are
not stored in the I6 object tree; nor for the holding relation, since that's
a union of the others, and therefore includes incorporation.)
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Make built-in spatial relationships< / span > < span class = "named-paragraph-number" > 3.1< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_containment< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::full_new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "ContainerOf(*1)"< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "contains"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-in"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "MoveObject(*2,*1)"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > CONTAINMENT_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_containment< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > loop_parent_optimisation_proviso< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "ContainerOf"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_containment< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > loop_parent_optimisation_ranger< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "TestContainmentRange"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::set_index_details< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > R_containment< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "container/room"< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "thing"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_support< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::full_new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_supporter< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "SupporterOf(*1)"< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "supports"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-on"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "MoveObject(*2,*1)"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > SUPPORT_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_support< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > loop_parent_optimisation_proviso< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "SupporterOf"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_incorporation< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::full_new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "(*1.component_parent)"< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "incorporates"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-part-of"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "MakePart(*2,*1)"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > INCORPORATION_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_carrying< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::full_new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_person< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "CarrierOf(*1)"< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "carries"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-carried-by"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "MoveObject(*2,*1)"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > CARRYING_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_carrying< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > loop_parent_optimisation_proviso< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "CarrierOf"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_holding< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::full_new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_person< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "HolderOf(*1)"< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "holds"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-held-by"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "MoveObject(*2,*1)"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > HOLDING_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "comment-syntax" > can't be optimised, because parts are also held< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_wearing< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::full_new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_person< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "WearerOf(*1)"< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "wears"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-worn-by"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "WearObject(*2,*1)"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > WEARING_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_wearing< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > loop_parent_optimisation_proviso< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "WearerOf"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > a_has_b_predicate< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::full_new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "OwnerOf(*1)"< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "has"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-had-by"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "MoveObject(*2,*1)"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > POSSESSION_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > a_has_b_predicate< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > loop_parent_optimisation_proviso< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "OwnerOf"< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::set_index_details< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > a_has_b_predicate< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "person"< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "thing"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > room_containment_predicate< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::full_new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_room< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "LocationOf(*1)"< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-room-of"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-in-room"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "MoveObject(*2,*1)"< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > ROOM_CONTAINMENT_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > room_containment_predicate< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > loop_parent_optimisation_proviso< / span > < span class = "plain-syntax" > = < / span > < span class = "string-syntax" > "LocationOf"< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "3-sr.html#SP3" > § 3< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP3_2" > < / a > < b > § 3.2. < / b > Visibility, touchability, concealment and enclosure: all relations which
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can be tested at run-time, but which can't be asserted or made true or false.
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Make built-in indirect spatial relationships< / span > < span class = "named-paragraph-number" > 3.2< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_visibility< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "can-see"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "can-be-seen-by"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "TestVisibility(*1,*2)"< / span > < span class = "plain-syntax" > ),< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > VISIBILITY_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_touchability< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "can-touch"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "can-be-touched-by"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "TestTouchability(*1,*2)"< / span > < span class = "plain-syntax" > ),< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TOUCHABILITY_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_concealment< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs_thing< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "conceals"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-concealed-by"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "TestConcealment(*1,*2)"< / span > < span class = "plain-syntax" > ),< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > CONCEALMENT_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > R_enclosure< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::make_pair< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > SPATIAL_KBP< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Kinds::Knowledge::as_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_object< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BinaryPredicates::new_term< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Kinds::Knowledge::as_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_object< / span > < span class = "plain-syntax" > )),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "encloses"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "is-enclosed-by"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Calculus::Schemas::new< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "IndirectlyContains(*1,*2)"< / span > < span class = "plain-syntax" > ),< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Preform::Nonparsing::wording< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < relation-names> < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > ENCLOSURE_RELATION_NAME< / span > < span class = "plain-syntax" > ));< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "3-sr.html#SP3" > § 3< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP4" > < / a > < b > § 4. Second stock. < / b > There is none — this is a family of relations which is all built in.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > PL::SpatialRelations::REL_create_second_stock< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP5" > < / a > < b > § 5. Typechecking. < / b > No special rules apply.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > PL::SpatialRelations::REL_typecheck< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > kinds_of_terms< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > **< / span > < span class = "identifier-syntax" > kinds_required< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > tc_problem_kit< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > tck< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > DECLINE_TO_MATCH< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP6" > < / a > < b > § 6. Assertion. < / b > "In" requires delicate handling, because of the way that English uses it
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sometimes transitively and sometimes not. "The passport is in the desk",
"The passport is in the Dining Room" and "The passport is in Venezuela"
place the same object in a container, a room or a region respectively.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > PL::SpatialRelations::REL_assert< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec0< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > instance< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > I0< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > InferenceSubjects::as_object_instance< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs0< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > I1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > InferenceSubjects::as_object_instance< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > infs1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > I0< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > I1< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I1< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > I0< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::Issue::sentence_problem< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Task::syntax_tree< / span > < span class = "plain-syntax" > (), < / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_MiseEnAbyme< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this asks to put something inside itself"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "like saying 'the bottle is in the bottle'."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-sr.html#SP6_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Offer our dependent plugins a chance to assert the relation instead< / span > < span class = "named-paragraph-number" > 6.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BinaryPredicates::can_be_made_true_at_runtime< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > ) == < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-sr.html#SP6_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue a problem message for an unassertable indirect spatial relation< / span > < span class = "named-paragraph-number" > 6.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > R_incorporation< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > Instances::of_kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K_room< / span > < span class = "plain-syntax" > )))< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-sr.html#SP6_3" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue a problem message for trying to subdivide a room< / span > < span class = "named-paragraph-number" > 6.3< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-sr.html#SP6_4" class = "named-paragraph-link" > < span class = "named-paragraph" > Draw inferences using only the standard Spatial conventions< / span > < span class = "named-paragraph-number" > 6.4< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > R_wearing< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "3-sr.html#SP6_5" class = "named-paragraph-link" > < span class = "named-paragraph" > Assert the worn and wearable properties< / span > < span class = "named-paragraph-number" > 6.5< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP6_1" > < / a > < b > § 6.1. < / b > Note that Backdrops needs to take priority over Regions here; the case of
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putting a backdrop inside a region clearly has to be implemented in some
way which isn't symmetrical between the two, and this way round is cleanest.
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Offer our dependent plugins a chance to assert the relation instead< / span > < span class = "named-paragraph-number" > 6.1< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "3-bck.html#SP12" class = "function-link" > < span class = "function-syntax" > PL::Backdrops::assert_relations< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I1< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "3-mcr.html#SP4" class = "function-link" > < span class = "function-syntax" > PL::MapDirections::assert_relations< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I1< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "3-rgn.html#SP17" class = "function-link" > < span class = "function-syntax" > PL::Regions::assert_relations< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I0< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I1< / span > < span class = "plain-syntax" > )) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "3-sr.html#SP6" > § 6< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP6_2" > < / a > < b > § 6.2. < / b > This is the point at which non-assertable relations are thrown out.
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< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue a problem message for an unassertable indirect spatial relation< / span > < span class = "named-paragraph-number" > 6.2< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::Issue::sentence_problem< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Task::syntax_tree< / span > < span class = "plain-syntax" > (), < / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_Unassertable< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "the relationship you describe is not exact enough"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "so that I do not know how to make this assertion come true. "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "For instance, saying 'The Study is adjacent to the Hallway.' "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "is not good enough because I need to know in what direction: "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "is it east of the Hallway, perhaps, or west?"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "3-sr.html#SP6" > § 6< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP6_3" > < / a > < b > § 6.3. < / b > People sometimes try, a little hopefully, to subdivide rooms. Alas for them.
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< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue a problem message for trying to subdivide a room< / span > < span class = "named-paragraph-number" > 6.3< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::Issue::sentence_problem< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Task::syntax_tree< / span > < span class = "plain-syntax" > (), < / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_PartOfRoom< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this asks to make something a part of a room"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "when only things are allowed to have parts."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "3-sr.html#SP6" > § 6< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP6_4" > < / a > < b > § 6.4. < / b > So we can forget about the complications of backdrops and regions now.
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< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Draw inferences using only the standard Spatial conventions< / span > < span class = "named-paragraph-number" > 6.4< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > item< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Instances::as_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > loc< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Instances::as_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I0< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > World::Inferences::draw< / span > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > PART_OF_INF< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > item< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > R_incorporation< / span > < span class = "plain-syntax" > )?< / span > < span class = "identifier-syntax" > CERTAIN_CE:IMPOSSIBLE_CE< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > loc< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > R_containment< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > World::Inferences::draw< / span > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > CONTAINS_THINGS_INF< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > loc< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > CERTAIN_CE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > item< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > World::Inferences::draw< / span > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > PARENTAGE_INF< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > item< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > CERTAIN_CE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > loc< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > World::Inferences::draw< / span > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > IS_ROOM_INF< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > item< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > IMPOSSIBLE_CE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "3-sr.html#SP6" > § 6< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP6_5" > < / a > < b > § 6.5. < / b > If something is being worn, it needs to have the I7 either/or property
"wearable" and also the I6-only attribute < span class = "extract" > < span class = "extract-syntax" > worn< / span > < / span > . (Arguably Clothing ought
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to be a plugin of its own, but the compiler needs to do hardly anything
special to make it work, so this doesn't seem worth the trouble.)
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Assert the worn and wearable properties< / span > < span class = "named-paragraph-number" > 6.5< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > item< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Instances::as_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P_wearable< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > World::Inferences::draw_property< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > item< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > P_wearable< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P_worn< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P_worn< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Properties::EitherOr::new_nameless< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > L< / span > < span class = "string-syntax" > "worn"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Properties::EitherOr::implement_as_attribute< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P_worn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > World::Inferences::draw_property< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > item< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > P_worn< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > );< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "3-sr.html#SP6" > § 6< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP7" > < / a > < b > § 7. Compilation. < / b > We need do nothing special: these relations can be compiled from their schemas.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > PL::SpatialRelations::REL_compile< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > task< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > annotated_i6_schema< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP8" > < / a > < b > § 8. Problem message text. < / b > < / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > PL::SpatialRelations::REL_describe_for_problems< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > OUTPUT_STREAM< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< nav role = "progress" > < div class = "progresscontainer" >
< ul class = "progressbar" > < li class = "progressprev" > < a href = "3-sm.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "1-im.html" > 1< / a > < / li > < li class = "progresschapter" > < a href = "2-ifi.html" > 2< / a > < / li > < li class = "progresscurrentchapter" > 3< / li > < li class = "progresssection" > < a href = "3-tnt.html" > tnt< / a > < / li > < li class = "progresssection" > < a href = "3-sm.html" > sm< / a > < / li > < li class = "progresscurrent" > sr< / li > < li class = "progresssection" > < a href = "3-prs.html" > prs< / a > < / li > < li class = "progresssection" > < a href = "3-tp.html" > tp< / a > < / li > < li class = "progresssection" > < a href = "3-dvc.html" > dvc< / a > < / li > < li class = "progresssection" > < a href = "3-bck.html" > bck< / a > < / li > < li class = "progresssection" > < a href = "3-rgn.html" > rgn< / a > < / li > < li class = "progresssection" > < a href = "3-tm.html" > tm< / a > < / li > < li class = "progresssection" > < a href = "3-mcr.html" > mcr< / a > < / li > < li class = "progresssection" > < a href = "3-sg.html" > sg< / a > < / li > < li class = "progresssection" > < a href = "3-sm2.html" > sm2< / a > < / li > < li class = "progresssection" > < a href = "3-hm.html" > hm< / a > < / li > < li class = "progresssection" > < a href = "3-em.html" > em< / a > < / li > < li class = "progresssection" > < a href = "3-sc.html" > sc< / a > < / li > < li class = "progresssection" > < a href = "3-scn.html" > scn< / a > < / li > < li class = "progresssection" > < a href = "3-tm2.html" > tm2< / a > < / li > < li class = "progresssection" > < a href = "3-ts.html" > ts< / a > < / li > < li class = "progresschapter" > < a href = "4-act.html" > 4< / a > < / li > < li class = "progresschapter" > < a href = "5-itg.html" > 5< / a > < / li > < li class = "progressnext" > < a href = "3-prs.html" > ❯ < / a > < / li > < / ul > < / div >
< / nav > <!-- End of weave -->
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< / main >
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< / body >
< / html >
