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<!-- Weave of 'Rule Family' generated by Inweb -->
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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../compiler.html" > Inform7< / a > < / li > < li > < a href = "index.html" > assertions< / a > < / li > < li > < a href = "index.html#5" > Chapter 5: Imperative Code< / a > < / li > < li > < b > Rule Family< / b > < / li > < / ul > < / div >
< p class = "purpose" > Imperative definitions of rules.< / p >
< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > < / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > imperative_defn_family< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > RULE_EFF_family< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > "Before taking a container, ..."< / span >
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< span class = "reserved-syntax" > typedef< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > rule_family_data< / span > < span class = "plain-syntax" > {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > constant_name< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > pattern< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > not_in_rulebook< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > event_time< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > event_name< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CLASS_DEFINITION< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > rule_family_data< / span > < span class = "plain-syntax" > ;< / span >
< / pre >
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< ul class = "endnotetexts" > < li > The structure rule_family_data is accessed in 5/tpf and here.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > < / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RuleFamily::create_family< / 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" > RuleFamily::create_family< / span > < / span > :< br / > Imperative Definitions - < a href = "5-id.html#SP5" > § 5< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > RULE_EFF_family< / span > < span class = "plain-syntax" > = < / span > < a href = "5-id.html#SP1" class = "function-link" > < span class = "function-syntax" > ImperativeDefinitions::new_family< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "RULE_EFF"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > METHOD_ADD< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RULE_EFF_family< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > CLAIM_IMP_DEFN_MTID< / span > < span class = "plain-syntax" > , < / span > < a href = "5-rf.html#SP5" class = "function-link" > < span class = "function-syntax" > RuleFamily::claim< / span > < / a > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > METHOD_ADD< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RULE_EFF_family< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > NEW_PHRASE_IMP_DEFN_MTID< / span > < span class = "plain-syntax" > , < / span > < a href = "5-rf.html#SP8" class = "function-link" > < span class = "function-syntax" > RuleFamily::new_phrase< / span > < / a > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
< p class = "commentary firstcommentary" > < a id = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. < / b > < / p >
< pre class = "Preform-displayed-code all-displayed-code code-font" >
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< span class = "Preform-function-syntax" > < rule-preamble> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > this< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > is< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > the< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule}< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { 1, - }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > this< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > is< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > the< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP3_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_NamelessRule problem< / span > < span class = "named-paragraph-number" > 3.1< / span > < / a > < / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > this< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > is< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP3_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_UnarticledRule problem< / span > < span class = "named-paragraph-number" > 3.2< / span > < / a > < / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > this< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > is< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rules< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP3_3" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_PluralisedRule problem< / span > < span class = "named-paragraph-number" > 3.3< / span > < / a > < / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > (< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > this< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > is< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > the< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule}< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > )< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { 2, - }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > (< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > this< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > is< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > the< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > )< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP3_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_NamelessRule problem< / span > < span class = "named-paragraph-number" > 3.1< / span > < / a > < / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > (< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > this< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > is< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > )< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP3_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_UnarticledRule problem< / span > < span class = "named-paragraph-number" > 3.2< / span > < / a > < / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > (< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > this< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > is< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rules< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > )< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP3_3" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_PluralisedRule problem< / span > < span class = "named-paragraph-number" > 3.3< / span > < / a > < / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { 3, - }< / span >
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< / pre >
< ul class = "endnotetexts" > < li > This is < a href = "../words-module/4-ap.html" class = "internal" > Preform grammar< / a > , not regular C code.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP3_1" class = "paragraph-anchor" > < / a > < b > § 3.1. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue PM_NamelessRule problem< / span > < span class = "named-paragraph-number" > 3.1< / span > < / span > < span class = "Preform-comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< 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_NamelessRule< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "there are many rules in Inform"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "so you need to give a name: 'this is the abolish dancing rule', say, "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "not just 'this is the rule'."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > ==> { < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , - }< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-rf.html#SP3" > § 3< / a > (twice).< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP3_2" class = "paragraph-anchor" > < / a > < b > § 3.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue PM_UnarticledRule problem< / span > < span class = "named-paragraph-number" > 3.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< 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_UnarticledRule< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "a rule must be given a definite name"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "which begins with 'the', just to emphasise that it is the only one "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "with this name: 'this is the promote dancing rule', say, not just "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "'this is promote dancing rule'."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > ==> { < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , - }< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-rf.html#SP3" > § 3< / a > (twice).< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP3_3" class = "paragraph-anchor" > < / a > < b > § 3.3. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue PM_PluralisedRule problem< / span > < span class = "named-paragraph-number" > 3.3< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< 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_PluralisedRule< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "a rule must be given a definite name ending in 'rule' not 'rules'"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "since the plural is only used for rulebooks, which can of course "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "contain many rules at once."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > ==> { < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , - }< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-rf.html#SP3" > § 3< / a > (twice).< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP4" class = "paragraph-anchor" > < / a > < b > § 4. < / b > < / p >
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< pre class = "Preform-displayed-code all-displayed-code code-font" >
< span class = "Preform-function-syntax" > < event-rule-preamble> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > at< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < clock-time> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { pass 1 }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > at< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > the< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > time< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > when< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { NO_FIXED_TIME, - }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > at< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > the< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > time< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > that< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP4_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_AtTimeThat problem< / span > < span class = "named-paragraph-number" > 4.1< / span > < / a > < / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > at< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP4_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_AtWithoutTime problem< / span > < span class = "named-paragraph-number" > 4.2< / span > < / a > < / span >
< / pre >
< ul class = "endnotetexts" > < li > This is < a href = "../words-module/4-ap.html" class = "internal" > Preform grammar< / a > , not regular C code.< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP4_1" class = "paragraph-anchor" > < / a > < b > § 4.1. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue PM_AtTimeThat problem< / span > < span class = "named-paragraph-number" > 4.1< / span > < / span > < span class = "Preform-comment-syntax" > =< / span >
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< 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_AtTimeThat< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this seems to use 'that' where it should use 'when'"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "assuming it's trying to apply a rule to an event. (The convention is "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "that any rule beginning 'At' is a timed one. The time can either be a "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "fixed time, as in 'At 11:10 AM: ...', or the time when some named "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "event takes place, as in 'At the time when the clock chimes: ...'.)"< / span > < span class = "plain-syntax" > );< / span >
< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "5-rf.html#SP4" > § 4< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP4_2" class = "paragraph-anchor" > < / a > < b > § 4.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue PM_AtWithoutTime problem< / span > < span class = "named-paragraph-number" > 4.2< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< 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_AtWithoutTime< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "'at' what time? No description of a time is given"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "which means that this rule can never have effect. (The convention is "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "that any rule beginning 'At' is a timed one. The time can either be a "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "fixed time, as in 'At 11:10 AM: ...', or the time when some named "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "event takes place, as in 'At the time when the clock chimes: ...'.)"< / span > < span class = "plain-syntax" > );< / span >
< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "5-rf.html#SP4" > § 4< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP5" class = "paragraph-anchor" > < / a > < b > § 5. < / b > < / 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" > RuleFamily::claim< / 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" > RuleFamily::claim< / span > < / span > :< br / > < a href = "5-rf.html#SP2" > § 2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > imperative_defn_family< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > self< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > imperative_defn< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Node::get_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > at< / 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 = "function-syntax" > < rule-preamble> < / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > form< / span > < span class = "plain-syntax" > = < / span > < span class = "function-syntax" > < < r> > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > family< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > RULE_EFF_family< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > rule_family_data< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > rule_family_data< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > not_in_rulebook< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > constant_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > pattern< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > event_time< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NOT_A_TIMED_EVENT< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > event_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / 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" > form< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > not_in_rulebook< / 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 > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > family_specific_data< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > STORE_POINTER_rule_family_data< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > rfd< / 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" > form< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > RW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rule-preamble> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / 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" > Rules::vet_name< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RW< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > constant_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > RW< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Rules::obtain< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RW< / 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 = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > form< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > 2< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > RW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rule-preamble> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 2< / 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" > Rules::vet_name< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RW< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > constant_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > RW< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Rules::obtain< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RW< / 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 = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > form< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > 2< / span > < span class = "plain-syntax" > ) || (< / span > < span class = "identifier-syntax" > form< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > 3< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > pattern< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rule-preamble> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / 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" > form< / span > < span class = "plain-syntax" > == < / span > < span class = "constant-syntax" > 3< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < event-rule-preamble> < / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > pattern< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > not_in_rulebook< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > event_time< / span > < span class = "plain-syntax" > = < / span > < span class = "function-syntax" > < < r> > < / 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" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > event_time< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NO_FIXED_TIME< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > event_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < event-rule-preamble> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
< p class = "commentary firstcommentary" > < a id = "SP6" class = "paragraph-anchor" > < / a > < b > § 6. < / 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" > RuleFamily::is< / 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" > RuleFamily::is< / span > < / span > :< br / > Imperative Definitions - < a href = "5-id.html#SP4" > § 4< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > imperative_defn< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > id< / 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" > id< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > family< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > RULE_EFF_family< / 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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< 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" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RuleFamily::not_in_rulebook< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > imperative_defn< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > id< / 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 = "5-rf.html#SP6" class = "function-link" > < span class = "function-syntax" > RuleFamily::is< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > rule_family_data< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > RETRIEVE_POINTER_rule_family_data< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > family_specific_data< / 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" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > not_in_rulebook< / 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 >
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< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > RuleFamily::phud< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > imperative_defn< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > ph_usage_data< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > rule_family_data< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > RETRIEVE_POINTER_rule_family_data< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > family_specific_data< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > timing_of_event< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > event_time< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > event_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > event_name< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > explicit_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > constant_name< / 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" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > not_in_rulebook< / 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 = "5-rf.html#SP6_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Parse the rulebook stem in fine mode< / span > < span class = "named-paragraph-number" > 6.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP6_1" class = "paragraph-anchor" > < / a > < b > § 6.1. < / b > Much later on, Inform returns to the definition to look at it in fine detail:
< / p >
< pre class = "Preform-displayed-code all-displayed-code code-font" >
< span class = "Preform-function-syntax" > < rule-preamble-fine> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < rule-preamble-finer> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > during< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < s-scene-description> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { R[1], RP[2] }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < rule-preamble-finer> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { R[1], NULL }< / span >
< span class = "Preform-function-syntax" > < rule-preamble-finer> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {< rulebook-stem-embellished> }< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {when/while< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > ...}< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { TRUE, - }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {< rulebook-stem-embellished> }< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { FALSE, - }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { NOT_APPLICABLE, - }< / span >
< span class = "Preform-function-syntax" > < rulebook-stem-embellished> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < rulebook-stem> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > ***< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < article> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > for< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < rulebook-stem> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > ***< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < article> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < rulebook-stem> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > ***< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > for< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < rulebook-stem> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > ***< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < rulebook-stem> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > ***< / span >
< span class = "Preform-function-syntax" > < rulebook-bud> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > of/for< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { TRUE, - }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > about/for/on< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { TRUE, - }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > rule< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { FALSE, - }< / span >
< / pre >
< ul class = "endnotetexts" > < li > This is < a href = "../words-module/4-ap.html" class = "internal" > Preform grammar< / a > , not regular C code.< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP6_2" class = "paragraph-anchor" > < / a > < b > § 6.2. < / b > That's it for coarse mode. The rest is what happens in fine mode, which
affects rules giving a rulebook and some circumstances:
< / p >
< blockquote >
< p > Instead of taking a container: ...< / p >
< / blockquote >
< p class = "commentary" > Here "Instead of" is the stem and "taking a container" the bud.
< / p >
< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Parse the rulebook stem in fine mode< / span > < span class = "named-paragraph-number" > 6.2< / span > < / span > < span class = "Preform-comment-syntax" > =< / span >
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > pattern< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "function-syntax" > < rule-preamble-fine> < / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / 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" > during_spec< / span > < span class = "plain-syntax" > = < / span > < span class = "function-syntax" > < < rp> > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > form< / span > < span class = "plain-syntax" > = < / span > < span class = "function-syntax" > < < r> > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rulebook_match< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Rulebooks::match< / span > < span class = "plain-syntax" > ();< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rule-preamble-finer> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / 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" > form< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NOT_APPLICABLE< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "function-syntax" > < unrecognised-rule-stem-diagnosis> < / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / 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" > form< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > whenwhile< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rule-preamble-finer> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 2< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > ifdef< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > IF_MODULE< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > during_scene_spec< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > during_spec< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > #< / span > < span class = "identifier-syntax" > endif< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > owning_rulebook< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > matched_rulebook< / 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" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > owning_rulebook< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "rulebook stem misparsed"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > owning_rulebook_placement< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > placement_requested< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP6_2_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Disallow the definite article for anonymous rules< / span > < span class = "named-paragraph-number" > 6.2.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP6_2_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Cut off the bud from the stem< / span > < span class = "named-paragraph-number" > 6.2.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > rule_preamble< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > W< / 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 = "5-rf.html#SP6" > § 6< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP6_2_1" class = "paragraph-anchor" > < / a > < b > § 6.2.1. < / b > The bud is not always present at all, and need not always be at the end
of the stem, so we have to be very careful:
< / p >
< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Cut off the bud from the stem< / span > < span class = "named-paragraph-number" > 6.2.1< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BUD< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rulebook-stem-embellished> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > b1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Wordings::first_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BUD< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > b2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Wordings::last_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BUD< / 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" > b1< / span > < span class = "plain-syntax" > == -1) || (< / span > < span class = "identifier-syntax" > b1< / span > < span class = "plain-syntax" > > < / span > < span class = "identifier-syntax" > b2< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > b1< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > match_from< / span > < span class = "plain-syntax" > + < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > advance_words< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > b2< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > match_from< / span > < span class = "plain-syntax" > + < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > advance_words< / span > < span class = "plain-syntax" > - < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > b2< / span > < span class = "plain-syntax" > -= < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > tail_words< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Wordings::new< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > b1< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > b2< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / 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" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > advance_words< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > match_length< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (!((< / span > < span class = "function-syntax" > < rulebook-bud> < / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > )) & & (< / span > < span class = "function-syntax" > < < r> > < / 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" > BW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Wordings::from< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > match_from< / span > < span class = "plain-syntax" > + < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > match_length< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rulebook-bud> < / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < < r> > < / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rulebook-bud> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rulebook-bud> < / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < < r> > < / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rulebook-bud> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rulebook-bud> < / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < < r> > < / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rulebook-bud> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / 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" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > advance_words< / span > < span class = "plain-syntax" > != < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > match_length< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Wordings::from< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > match_from< / span > < span class = "plain-syntax" > + < / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > match_length< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rulebook-bud> < / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < < r> > < / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > GET_RW< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < rulebook-bud> < / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > BW< / span > < span class = "plain-syntax" > ;< / 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" > Wordings::nonempty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > CW< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > rule_parameter< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CW< / 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" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > owning_rulebook< / span > < span class = "plain-syntax" > ) & & < / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Rulebooks::runs_during_activities< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > owning_rulebook< / 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" > Rulebooks::action_focus< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > owning_rulebook< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::nonempty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > rule_parameter< / span > < span class = "plain-syntax" > )) & & < / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::nonempty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > whenwhile< / span > < span class = "plain-syntax" > ))) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > rule_parameter< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Wordings::new< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::first_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > rule_parameter< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Wordings::last_wn< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > whenwhile< / span > < span class = "plain-syntax" > ));< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > phud< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > whenwhile< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > EMPTY_WORDING< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "5-rf.html#SP6_2" > § 6.2< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP7" class = "paragraph-anchor" > < / a > < b > § 7. < / b > If we can't find a stem, the following chooses which problem to issue:
< / p >
< pre class = "Preform-displayed-code all-displayed-code code-font" >
< span class = "Preform-function-syntax" > < unrecognised-rule-stem-diagnosis> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > when< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > ***< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP7_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_BadRulePreambleWhen problem< / span > < span class = "named-paragraph-number" > 7.1< / span > < / a > < / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ...< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-rf.html#SP7_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Issue PM_BadRulePreamble problem< / span > < span class = "named-paragraph-number" > 7.2< / span > < / a > < / span >
< / pre >
< ul class = "endnotetexts" > < li > This is < a href = "../words-module/4-ap.html" class = "internal" > Preform grammar< / a > , not regular C code.< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP7_1" class = "paragraph-anchor" > < / a > < b > § 7.1. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue PM_BadRulePreambleWhen problem< / span > < span class = "named-paragraph-number" > 7.1< / span > < / span > < span class = "Preform-comment-syntax" > =< / span >
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::quote_source< / span > < span class = "plain-syntax" > (1, < / span > < span class = "identifier-syntax" > current_sentence< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > StandardProblems::handmade_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_BadRulePreambleWhen< / span > < span class = "plain-syntax" > ));< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::issue_problem_segment< / span > < span class = "plain-syntax" > (< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "The punctuation makes me think %1 should be a definition "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "of a phrase or a rule, but it doesn't begin as it should, "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "with either 'To' (e.g. 'To flood the riverplain:'), 'Definition:', "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "a name for a rule (e.g. 'This is the devilishly cunning rule:'), "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "'At' plus a time (e.g. 'At 11:12 PM:' or 'At the time when "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "the clock chimes:') or the name of a rulebook. %P"< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "As your rule begins with 'When', it may be worth noting that in "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "December 2006 the syntax used by Inform for timed events changed: "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "the old syntax 'When the sky falls in:' to create a named "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "event, the sky falls in, became 'At the time when the sky "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "falls in:'. This was changed to avoid confusion with rules "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "relating to when scenes begin or end. %P"< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "Or perhaps you meant to say that something would only happen "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "when some condition held. Inform often allows this, but the "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "'when...' part tends to be at the end, not up front - for "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "instance, 'Understand \"blue\" as the deep crevasse when the "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "location is the South Pole.'"< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Problems::issue_problem_end< / span > < span class = "plain-syntax" > ();< / span >
< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "5-rf.html#SP7" > § 7< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP7_2" class = "paragraph-anchor" > < / a > < b > § 7.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Issue PM_BadRulePreamble problem< / span > < span class = "named-paragraph-number" > 7.2< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< 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_BadRulePreamble< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "the punctuation here ':' makes me think this should be a definition "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "of a phrase and it doesn't begin as it should"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "with either 'To' (e.g. 'To flood the riverplain:'), 'Definition:', "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "a name for a rule (e.g. 'This is the devilishly cunning rule:'), "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "'At' plus a time (e.g. 'At 11:12 PM:' or 'At the time when "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "the clock chimes') or the name of a rulebook, possibly followed "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "by some description of the action or value to apply to (e.g. "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "'Instead of taking something:' or 'Every turn:')."< / span > < span class = "plain-syntax" > );< / span >
< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "5-rf.html#SP7" > § 7< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP6_2_2" class = "paragraph-anchor" > < / a > < b > § 6.2.2. < / b > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Disallow the definite article for anonymous rules< / span > < span class = "named-paragraph-number" > 6.2.2< / span > < / span > < span class = "comment-syntax" > =< / span >
< / p >
< 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 > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > article_used< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > definite_article< / span > < span class = "plain-syntax" > ) & & < / span >
< span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > parsed_rm< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > placement_requested< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > MIDDLE_PLACEMENT< / 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" > PM_RuleWithDefiniteArticle< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "a rulebook can contain any number of rules"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "so (e.g.) 'the before rule: ...' is disallowed; you should "< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "write 'a before rule: ...' instead."< / span > < span class = "plain-syntax" > );< / span >
< / pre >
< ul class = "endnotetexts" > < li > This code is used in < a href = "5-rf.html#SP6_2" > § 6.2< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP8" class = "paragraph-anchor" > < / a > < b > § 8. < / b > < / 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" > RuleFamily::new_phrase< / span > < button class = "popup" onclick = "togglePopup('usagePopup4')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup4" > Usage of < span class = "code-font" > < span class = "function-syntax" > RuleFamily::new_phrase< / span > < / span > :< br / > < a href = "5-rf.html#SP2" > § 2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > imperative_defn_family< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > self< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > imperative_defn< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > phrase< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > new_ph< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > rule_family_data< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > rfd< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > RETRIEVE_POINTER_rule_family_data< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > family_specific_data< / 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" > rfd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > not_in_rulebook< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Phrases::Usage::to_rule< / span > < span class = "plain-syntax" > (& (< / span > < span class = "identifier-syntax" > new_ph< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > usage_data< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > id< / 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" > Rules::request_automatic_placement< / span > < span class = "plain-syntax" > (< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Phrases::Usage::to_rule< / span > < span class = "plain-syntax" > (& (< / span > < span class = "identifier-syntax" > new_ph< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > usage_data< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > id< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_ph< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > compile_with_run_time_debugging< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
< nav role = "progress" > < div class = "progresscontainer" >
< ul class = "progressbar" > < li class = "progressprev" > < a href = "5-tpf.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "P-wtmd.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-am.html" > 1< / a > < / li > < li class = "progresschapter" > < a href = "2-bv.html" > 2< / a > < / li > < li class = "progresschapter" > < a href = "3-dlr.html" > 3< / a > < / li > < li class = "progresschapter" > < a href = "4-nr.html" > 4< / a > < / li > < li class = "progresscurrentchapter" > 5< / li > < li class = "progresssection" > < a href = "5-id.html" > id< / a > < / li > < li class = "progresssection" > < a href = "5-adf.html" > adf< / a > < / li > < li class = "progresssection" > < a href = "5-tpf.html" > tpf< / a > < / li > < li class = "progresscurrent" > rf< / li > < li class = "progresschapter" > < a href = "6-tc.html" > 6< / a > < / li > < li class = "progresschapter" > < a href = "7-kpr.html" > 7< / a > < / li > < li class = "progressnext" > < a href = "6-tc.html" > ❯ < / a > < / li > < / ul > < / div >
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