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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" > if< / a > < / li > < li > < a href = "index.html#4" > Chapter 4: Actions< / a > < / li > < li > < b > Actions< / b > < / li > < / ul > < / div >
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< p class = "purpose" > Each different sort of impulse to do something is an "action name".< / p >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > An action is an impulse to do something within the model world, and there
will be many different sorts of impulse which a person may have: "going"
[i.e. somewhere], for example, or "wearing" [i.e. something].
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< / p >
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< p class = "commentary" > Each of these different sorts of action is represented by an instance of
< a href = "4-act.html#SP1" class = "internal" > action_name< / a > , and each in turn corresponds to an instance of the enumerated
kind < span class = "extract" > < span class = "extract-syntax" > K_action_name< / span > < / span > at run-time.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
< 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" > action_name< / 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 = "reserved-syntax" > action_naming_data< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > naming_data< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > action_semantics< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > semantics< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > see < / span > < a href = "4-as.html" class = "internal" > Action Semantics< / a >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rulebook< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > check_rules< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > rulebooks private to this action< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rulebook< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > carry_out_rules< / 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" > rulebook< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > report_rules< / 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" > stacked_variable_owner< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > action_variables< / 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 = "reserved-syntax" > grammar_line< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > command_parser_grammar_producing_this< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > if any< / 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" > action_compilation_data< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > compilation_data< / 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" > action_indexing_data< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > indexing_data< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CLASS_DEFINITION< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< ul class = "endnotetexts" > < li > The structure action_name is accessed in 4/ap, 4/as, 4/av, 4/ann, 4/anl, 4/nap and here.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > Note that we notify the < span class = "extract" > < span class = "extract-syntax" > K_action_name< / span > < / span > kind that a new enumerated value
for it exists; we don't need to record the reply (i.e. the number used as
this value at run-time) because it will be the same as the allocation ID
for the < a href = "4-act.html#SP1" class = "internal" > action_name< / a > structure in all cases.
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< / p >
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< p class = "commentary" > As a historical note, until 2021 this code was still capable of generating
actions managed entirely by Inter code and without I7 rulebooks: something
which had not actually been done since around 2008.
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > PL::Actions::act_new< / 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" > PL::Actions::act_new< / span > < / span > :< br / > Actions Plugin - < a href = "4-ap.html#SP8" > § 8< / a > < / span > < / button > < 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 >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Kinds::Behaviour::new_enumerated_value< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K_action_name< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < a href = "4-ann.html#SP3" class = "function-link" > < span class = "function-syntax" > ActionNameNames::baptise< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > ); < / span > < span class = "comment-syntax" > which sets its < / span > < span class = "extract" > < span class = "extract-syntax" > naming_data< / span > < / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > semantics< / span > < span class = "plain-syntax" > = < / span > < a href = "4-as.html#SP3" class = "function-link" > < span class = "function-syntax" > ActionSemantics::default< / span > < / a > < span class = "plain-syntax" > ();< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > command_parser_grammar_producing_this< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > compilation_data< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > RTActions::new_data< / 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" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > indexing_data< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > IXActions::new_data< / span > < span class = "plain-syntax" > ();< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > check_rules< / span > < span class = "plain-syntax" > = < / span > < a href = "4-act.html#SP3" class = "function-link" > < span class = "function-syntax" > PL::Actions::new_rulebook< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > CHECK_RB_HL< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > carry_out_rules< / span > < span class = "plain-syntax" > = < / span > < a href = "4-act.html#SP3" class = "function-link" > < span class = "function-syntax" > PL::Actions::new_rulebook< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > CARRY_OUT_RB_HL< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > report_rules< / span > < span class = "plain-syntax" > = < / span > < a href = "4-act.html#SP3" class = "function-link" > < span class = "function-syntax" > PL::Actions::new_rulebook< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > REPORT_RB_HL< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > action_variables< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > StackedVariables::new_owner< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RTActions::action_variable_set_ID< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOGIF< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > ACTION_CREATIONS< / span > < span class = "plain-syntax" > , < / span > < span class = "string-syntax" > "Created action: %W\n"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > W< / 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" > an< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. < / b > Rulebooks such as "check" would become far too large if they accumulated
every rule for checking anything; and so they are "fragmented" into individual
rulebooks per action, such as "check waiting" or "check dropping".
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "identifier-syntax" > rulebook< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > PL::Actions::new_rulebook< / 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" > PL::Actions::new_rulebook< / span > < / span > :< br / > < a href = "4-act.html#SP2" > § 2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > RB< / 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" > W< / span > < span class = "plain-syntax" > = < / span > < a href = "4-ann.html#SP10" class = "function-link" > < span class = "function-syntax" > ActionNameNames::rulebook_name< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > RB< / 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" > prefix_length< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Wordings::length< / 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" > Wordings::length< / span > < span class = "plain-syntax" > (< / span > < a href = "4-ann.html#SP5" class = "function-link" > < span class = "function-syntax" > ActionNameNames::tensed< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > IS_TENSE< / span > < span class = "plain-syntax" > ));< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rulebook< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > R< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Rulebooks::new_automatic< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K_action_name< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NO_OUTCOME< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > RTActions::rulebook_package< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > RB< / span > < span class = "plain-syntax" > ));< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Rulebooks::fragment_by_actions< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > R< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > prefix_length< / 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" > R< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP4" class = "paragraph-anchor" > < / a > < b > § 4. < / b > These functions goes from the global rulebook to the fragmented one for
a given action:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "identifier-syntax" > rulebook< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > PL::Actions::fragment_rulebook< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > rulebook< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > rb< / 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" > rb< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > built_in_rulebooks< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > CHECK_RB< / span > < span class = "plain-syntax" > ]) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > check_rules< / 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" > rb< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > built_in_rulebooks< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > CARRY_OUT_RB< / span > < span class = "plain-syntax" > ]) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > carry_out_rules< / 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" > rb< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > built_in_rulebooks< / span > < span class = "plain-syntax" > [< / span > < span class = "identifier-syntax" > REPORT_RB< / span > < span class = "plain-syntax" > ]) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > report_rules< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > internal_error< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "asked for peculiar fragmented rulebook"< / span > < span class = "plain-syntax" > ); < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > rulebook< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > PL::Actions::divert_to_another_actions_rulebook< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > new_an< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > rulebook< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > old_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" > new_an< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > old_an< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > old_an< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > action_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" > old_rulebook< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > old_an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > check_rules< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > check_rules< / 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" > old_rulebook< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > old_an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > carry_out_rules< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > carry_out_rules< / 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" > old_rulebook< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > old_an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > report_rules< / span > < span class = "plain-syntax" > ) < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > new_an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > report_rules< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / 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" > old_rulebook< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP5" class = "paragraph-anchor" > < / a > < b > § 5. < / b > The < a href = "5-pp.html" class = "internal" > Parsing Plugin< / a > attaches command grammar to an action, but that's not
our concern here:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > PL::Actions::add_gl< / 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" > PL::Actions::add_gl< / span > < / span > :< br / > Grammar Lines - < a href = "5-gl.html#SP3" > § 3< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > grammar_line< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > gl< / 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" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > command_parser_grammar_producing_this< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > command_parser_grammar_producing_this< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > gl< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < a href = "5-gl.html#SP23" class = "function-link" > < span class = "function-syntax" > PL::Parsing::Lines::list_with_action_add< / span > < / a > < span class = "plain-syntax" > (< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > command_parser_grammar_producing_this< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > gl< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > PL::Actions::remove_gl< / 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" > PL::Actions::remove_gl< / span > < / span > :< br / > Traverse for Grammar - < a href = "5-tfg.html#SP19" > § 19< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > action_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > an< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > command_parser_grammar_producing_this< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP6" class = "paragraph-anchor" > < / a > < b > § 6. < / b > Most actions are given automatically generated Inter identifiers, but a few
have to correspond to names referenced in < a href = "../WorldModelKit/index.html" class = "internal" > WorldModelKit< / a > , so:
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< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > PL::Actions::translates< / span > < 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" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > p< / 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" > < action-name> < / 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" > RTActions::translate< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < < rp> > < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Node::get_text< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > p< / 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" > LOG< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > "Tried action name %W\n"< / 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" > StandardProblems::sentence_problem< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Task::syntax_tree< / span > < span class = "plain-syntax" > (),< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > _p_< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PM_TranslatesNonAction< / span > < span class = "plain-syntax" > ),< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "this does not appear to be the name of an action"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "string-syntax" > "so cannot be translated into I6 at all."< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< nav role = "progress" > < div class = "progresscontainer" >
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< ul class = "progressbar" > < li class = "progressprev" > < a href = "4-ac.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "P-wtmd.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-im.html" > 1< / a > < / li > < li class = "progresschapter" > < a href = "2-bd.html" > 2< / a > < / li > < li class = "progresschapter" > < a href = "3-sm.html" > 3< / a > < / li > < li class = "progresscurrentchapter" > 4< / li > < li class = "progresssection" > < a href = "4-ap.html" > ap< / a > < / li > < li class = "progresssection" > < a href = "4-anaa.html" > anaa< / a > < / li > < li class = "progresssection" > < a href = "4-ak.html" > ak< / a > < / li > < li class = "progresssection" > < a href = "4-ac.html" > ac< / a > < / li > < li class = "progresscurrent" > act< / li > < li class = "progresssection" > < a href = "4-as.html" > as< / a > < / li > < li class = "progresssection" > < a href = "4-av.html" > av< / a > < / li > < li class = "progresssection" > < a href = "4-ann.html" > ann< / a > < / li > < li class = "progresssection" > < a href = "4-ap2.html" > ap2< / a > < / li > < li class = "progresssection" > < a href = "4-anl.html" > anl< / a > < / li > < li class = "progresssection" > < a href = "4-apc.html" > apc< / a > < / li > < li class = "progresssection" > < a href = "4-gng.html" > gng< / a > < / li > < li class = "progresssection" > < a href = "4-pap.html" > pap< / a > < / li > < li class = "progresssection" > < a href = "4-pc.html" > pc< / a > < / li > < li class = "progresssection" > < a href = "4-ea.html" > ea< / a > < / li > < li class = "progresssection" > < a href = "4-nap.html" > nap< / a > < / li > < li class = "progresschapter" > < a href = "5-pp.html" > 5< / a > < / li > < li class = "progressnext" > < a href = "4-as.html" > ❯ < / a > < / li > < / ul > < / div >
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< / nav > <!-- End of weave -->
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< / main >
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< / body >
< / html >