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<!-- Weave of 'Compile Atoms' generated by Inweb -->
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< ul class = "crumbs" > < li > < a href = "../overview.html" > Home< / a > < / li > < li > < a href = "../inform7n.html" > Inform7< / a > < / li > < li > < a href = "index.html" > imperative< / a > < / li > < li > < a href = "index.html#4" > Chapter 4: Propositions< / a > < / li > < li > < b > Compile Atoms< / b > < / li > < / ul > < / div >
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< p class = "purpose" > Given an atom of a proposition we compile Inter code to test it, to make it henceforth true, or to make it henceforth false.< / p >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > First we make a schema for what we want, and then we ask < a href = "4-cs.html" class = "internal" > Compile Schemas< / a >
to compile it:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > CompileAtoms::code_to_perform< / span > < button class = "popup" onclick = "togglePopup('usagePopup1')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup1" > Usage of < span class = "code-font" > < span class = "function-syntax" > CompileAtoms::code_to_perform< / span > < / span > :< br / > Compile Propositions - < a href = "4-cp.html#SP2" > § 2< / a > , < a href = "4-cp.html#SP4" > § 4< / a > < br / > Compile Deferred Propositions - < a href = "4-cdp.html#SP3_6_1_4_3_2" > § 3.6.1.4.3.2< / a > , < a href = "4-cdp.html#SP3_6_1_4_3_4" > § 3.6.1.4.3.4< / a > < / span > < / button > < 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" > pcalc_prop< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > switch< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > task< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TEST_ATOM_TASK:< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOGIF< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PREDICATE_CALCULUS_WORKINGS< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "Compiling condition: $o\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NOW_ATOM_TRUE_TASK:< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOGIF< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PREDICATE_CALCULUS_WORKINGS< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "Compiling 'now': $o\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NOW_ATOM_FALSE_TASK:< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOGIF< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PREDICATE_CALCULUS_WORKINGS< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "Compiling 'now' false: $o\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > default:< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "unknown compile task"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "4-ca.html#SP1_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Reject all discussion of the action variables in the past tense< / span > < span class = "named-paragraph-number" > 1.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / 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 = "identifier-syntax" > Calculus::Schemas::blank_asch< / span > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-ca.html#SP2" class = "function-link" > < span class = "function-syntax" > CompileAtoms::annotate_schema< / span > < / a > < span class = "plain-syntax" > (& < / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > task< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < a href = "4-cs.html#SP1" class = "function-link" > < span class = "function-syntax" > CompileSchemas::from_annotated_schema< / span > < / a > < span class = "plain-syntax" > (& < / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > problem_count< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ) < / span > < span class = "named-paragraph-container code-font" > < a href = "4-ca.html#SP1_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue a fallback problem message< / span > < span class = "named-paragraph-number" > 1.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP1_1" class = "paragraph-anchor" > < / a > < b > § 1.1. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Reject all discussion of the action variables in the past tense< / span > < span class = "named-paragraph-number" > 1.1< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > uses_av< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > for< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > =0; < / span > < span class = "identifier-syntax" > i< / span > < span class = "function-syntax" > < atom-> < / span > < span class = "identifier-syntax" > arity< / span > < span class = "plain-syntax" > ; < / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ++) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > operand< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Terms::constant_underlying< / span > < span class = "plain-syntax" > (& (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > i< / span > < span class = "plain-syntax" > ]));< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < a href = "4-ca.html#SP3" class = "function-link" > < span class = "function-syntax" > CompileAtoms::is_an_action_variable< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > operand< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > uses_av< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > uses_av< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "3-sf.html#SP11" class = "function-link" > < span class = "function-syntax" > Frames::used_for_past_tense< / span > < / a > < span class = "plain-syntax" > ()) & & (< / span > < span class = "identifier-syntax" > problem_count< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > StandardProblems::sentence_problem< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Task::syntax_tree< / span > < span class = "plain-syntax" > (),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_ActionVarsPastTense< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "it is misleading to talk about the noun, the second noun or the person "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "asked to do something in past tenses"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "because in the past, those were different things and people, or may have "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "been nothing at all. Writing 'if the noun has been unlocked' tends not to "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "do what we might hope because the value of 'noun' changes every turn. "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "So such conditions are not allowed, although to get around this we can "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "instead write 'if we have unlocked the noun', which uses a special "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "mechanism to remember everything which has happened to every object."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "4-ca.html#SP1" > § 1< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP1_2" class = "paragraph-anchor" > < / a > < b > § 1.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue a fallback problem message< / span > < span class = "named-paragraph-number" > 1.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Failed on task: $o\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > atom< / 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" > task< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > TEST_ATOM_TASK< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > StandardProblems::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" > BelievedImpossible< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this is not a condition I am able to test"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "or at any rate not during play."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > StandardProblems::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_CantForceRelation< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this is not something I can make true with 'now'"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "because it is too vague about the underlying cause which would "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "need to be arranged."< / 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 = "4-ca.html#SP1" > § 1< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > Which makes use of:
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > CompileAtoms::annotate_schema< / span > < button class = "popup" onclick = "togglePopup('usagePopup2')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup2" > Usage of < span class = "code-font" > < span class = "function-syntax" > CompileAtoms::annotate_schema< / span > < / span > :< br / > < a href = "4-ca.html#SP1" > § 1< / a > < / span > < / button > < 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 = "identifier-syntax" > pcalc_prop< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > atom< / 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 = "plain-syntax" > < / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pt0< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0]; < / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pt1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [1];< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > element< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > PREDICATE_ATOM< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > switch< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > arity< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > : < / span > < span class = "named-paragraph-container code-font" > < a href = "4-ca.html#SP2_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Make an annotated schema for a unary predicate< / span > < span class = "named-paragraph-number" > 2.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 2< / span > < span class = "plain-syntax" > : < / span > < span class = "named-paragraph-container code-font" > < a href = "4-ca.html#SP2_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Make an annotated schema for a binary predicate< / span > < span class = "named-paragraph-number" > 2.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > }< / span >
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< 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 = "comment-syntax" > signal that the atom cannot be compiled simply< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP2_1" class = "paragraph-anchor" > < / a > < b > § 2.1. < / b > We hand over to the general UP apparatus for this.
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< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Make an annotated schema for a unary predicate< / span > < span class = "named-paragraph-number" > 2.1< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > constant< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / 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" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Specifications::to_kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > constant< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOGIF< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PREDICATE_CALCULUS_WORKINGS< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "Unary predicate: $o, on: %u\n"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > unary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > tr< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > RETRIEVE_POINTER_unary_predicate< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > predicate< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > UnaryPredicateFamilies::get_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > task< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > tr< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / 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" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / 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" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / 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 = "4-ca.html#SP2" > § 2< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP2_2" class = "paragraph-anchor" > < / a > < b > § 2.2. < / b > Delegation is similarly the art of compiling a BP:
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< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Make an annotated schema for a binary predicate< / span > < span class = "named-paragraph-number" > 2.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > constant< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / 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" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Specifications::to_kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > constant< / 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" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [1].< / span > < span class = "identifier-syntax" > constant< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [1].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / 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" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [1].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Specifications::to_kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [1].< / span > < span class = "identifier-syntax" > constant< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOGIF< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PREDICATE_CALCULUS_WORKINGS< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "Binary predicate: $o, on: %u, %u\n"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [1].< / span > < span class = "identifier-syntax" > term_checked_as_kind< / span > < span class = "plain-syntax" > );< / span >
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< 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" > RETRIEVE_POINTER_binary_predicate< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > predicate< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > binary_predicate< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > bp_to_assert< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "4-ca.html#SP2_2_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Undo any functional simplification of the relation< / span > < span class = "named-paragraph-number" > 2.2.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > BinaryPredicateFamilies::get_schema< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > task< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > bp_to_assert< / 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" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > schema< / 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" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / 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 = "4-ca.html#SP2" > § 2< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP2_2_1" class = "paragraph-anchor" > < / a > < b > § 2.2.1. < / b > When a relation \(R(x, y)\) has been simplified to \(is(x, f_R(y))\) or \(is(g_R(x), y)\),
it can be tested but not asserted true or false; we have to re-establish \(R(x, y)\)
before we can proceed.
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< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Undo any functional simplification of the relation< / span > < span class = "named-paragraph-number" > 2.2.1< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > task< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > TEST_ATOM_TASK< / span > < span class = "plain-syntax" > ) & & (< / span > < span class = "identifier-syntax" > bp< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > R_equality< / 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" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > function< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > bp_to_assert< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > function< / 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" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pt0< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [0].< / span > < span class = "identifier-syntax" > function< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > fn_of< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [1].< / span > < span class = "identifier-syntax" > function< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > bp_to_assert< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [1].< / span > < span class = "identifier-syntax" > function< / 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" > asch< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > pt1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > atom< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > terms< / span > < span class = "plain-syntax" > [1].< / span > < span class = "identifier-syntax" > function< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > fn_of< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp_to_assert< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > R_equality< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "contraction of predicate applied to equality"< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > bp_to_assert< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > bp_to_assert< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > bp< / 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 = "4-ca.html#SP2_2" > § 2.2< / a > .< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. < / b > The action variables will exist only if the actions plugin is active, and
are just < span class = "extract" > < span class = "extract-syntax" > actor< / span > < / span > , < span class = "extract" > < span class = "extract-syntax" > noun< / span > < / span > and < span class = "extract" > < span class = "extract-syntax" > second< / span > < / span > at runtime:
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > CompileAtoms::is_an_action_variable< / span > < button class = "popup" onclick = "togglePopup('usagePopup3')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup3" > Usage of < span class = "code-font" > < span class = "function-syntax" > CompileAtoms::is_an_action_variable< / span > < / span > :< br / > < a href = "4-ca.html#SP1_1" > § 1.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > nonlocal_variable< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > nlv< / 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" > spec< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / 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 > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Lvalues::get_storage_form< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > spec< / span > < span class = "plain-syntax" > ) != < / span > < span class = "identifier-syntax" > NONLOCAL_VARIABLE_NT< / 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 > < span class = "identifier-syntax" > nlv< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Node::get_constant_nonlocal_variable< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > spec< / 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" > nlv< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > Inter_noun_VAR< / 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 > < span class = "identifier-syntax" > nlv< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > Inter_second_noun_VAR< / 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 > < span class = "identifier-syntax" > nlv< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > Inter_actor_VAR< / 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" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< nav role = "progress" > < div class = "progresscontainer" >
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< / nav > <!-- End of weave -->
< / main >
< / body >
< / html >