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< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../inform7n.html" > Inform7< / a > < / li > < li > < a href = "index.html" > if< / a > < / li > < li > < a href = "index.html#5" > Chapter 5: Command Parser< / a > < / li > < li > < b > Parsing Plugin< / b > < / li > < / ul > < / div >
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< p class = "purpose" > A feature for command-parser support.< / p >
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< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > Inform provides extensive support for a command parser at runtime, and all of
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that support is contained in the "parsing" feature, which occupies this entire
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chapter.
< / p >
< 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" > ParsingPlugin::start< / 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" > ParsingPlugin::start< / span > < / span > :< br / > IF Module - < a href = "1-im.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 > < a href = "5-pp.html#SP11" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::nodes_and_annotations< / span > < / a > < span class = "plain-syntax" > ();< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PluginCalls::plug< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PRODUCTION_LINE_PLUG< / span > < span class = "plain-syntax" > , < / span > < a href = "5-pp.html#SP2" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::production_line< / span > < / a > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PluginCalls::plug< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > MAKE_SPECIAL_MEANINGS_PLUG< / span > < span class = "plain-syntax" > , < / span > < a href = "5-us.html#SP1" class = "function-link" > < span class = "function-syntax" > Understand::make_special_meanings< / span > < / a > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PluginCalls::plug< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > COMPARE_CONSTANT_PLUG< / span > < span class = "plain-syntax" > , < / span > < a href = "5-pp.html#SP4" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::compare_CONSTANT< / span > < / a > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PluginCalls::plug< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NEW_VARIABLE_NOTIFY_PLUG< / span > < span class = "plain-syntax" > , < / span > < a href = "5-pp.html#SP7" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::new_variable_notify< / span > < / a > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PluginCalls::plug< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NEW_SUBJECT_NOTIFY_PLUG< / span > < span class = "plain-syntax" > , < / span > < a href = "5-pp.html#SP3" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::new_subject_notify< / span > < / a > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PluginCalls::plug< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > NEW_PERMISSION_NOTIFY_PLUG< / span > < span class = "plain-syntax" > , < / span > < a href = "5-pv.html#SP1" class = "function-link" > < span class = "function-syntax" > Visibility::new_permission_notify< / span > < / a > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > PluginCalls::plug< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > COMPLETE_MODEL_PLUG< / span > < span class = "plain-syntax" > , < / span > < a href = "5-pp.html#SP9" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::complete_model< / span > < / a > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > RTLiteralPatterns::enable_parsing< / span > < span class = "plain-syntax" > ();< / span >
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< span class = "plain-syntax" > }< / span >
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< / pre >
< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > This will also need extensive amounts of run-time code, and the sequence
for generating that is a little delicate.
< / 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" > ParsingPlugin::production_line< / 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" > ParsingPlugin::production_line< / span > < / span > :< br / > < a href = "5-pp.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > stage< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > debugging< / span > < span class = "plain-syntax" > ,< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > stopwatch_timer< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > sequence_timer< / 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" > stage< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > TABLES_CSEQ< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BENCH< / span > < span class = "plain-syntax" > (< / span > < a href = "5-us.html#SP2" class = "function-link" > < span class = "function-syntax" > Understand::traverse< / span > < / a > < span class = "plain-syntax" > );< / 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" > stage< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > INTER2_CSEQ< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BENCH< / span > < span class = "plain-syntax" > (< / span > < a href = "5-cg.html#SP19" class = "function-link" > < span class = "function-syntax" > CommandGrammars::prepare< / span > < / a > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BENCH< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > KindGPRs::number< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BENCH< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > KindGPRs::truth_state< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BENCH< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > KindGPRs::time< / 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" > debugging< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BENCH< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RTTestCommand::compile< / 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 > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > stage< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > INTER4_CSEQ< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BENCH< / span > < span class = "plain-syntax" > (< / span > < a href = "5-cg.html#SP19" class = "function-link" > < span class = "function-syntax" > CommandGrammars::prepare< / span > < / a > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BENCH< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RTCommandGrammarLines::MistakeActionSub< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > BENCH< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RTCommandGrammars::compile_all< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP3" class = "paragraph-anchor" > < / a > < b > § 3. < / b > This feature attaches a < a href = "5-pp.html#SP3" class = "internal" > parsing_data< / a > object to every inference subject,
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and in particular, to every object instance and every kind of object.
< / p >
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< pre class = "definitions code-font" > < span class = "definition-keyword" > define< / span > < span class = "identifier-syntax" > PARSING_DATA< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > FEATURE_DATA_ON_INSTANCE< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > parsing< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > )< / span >
< span class = "definition-keyword" > define< / span > < span class = "identifier-syntax" > PARSING_DATA_FOR_SUBJ< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > ) < / span > < span class = "identifier-syntax" > FEATURE_DATA_ON_SUBJECT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > parsing< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > )< / span >
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< / pre >
< 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" > parsing_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 = "reserved-syntax" > command_grammar< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > understand_as_this_subject< / span > < span class = "plain-syntax" > ; < / span > < span class = "comment-syntax" > grammar for parsing the name at run-time< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > struct< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > parsing_compilation_data< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > compilation_data< / 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" > parsing_data< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "reserved-syntax" > parsing_data< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > ParsingPlugin::new_data< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > subj< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > parsing_data< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > pd< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > CREATE< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > parsing_data< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > pd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > understand_as_this_subject< / 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" > pd< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > compilation_data< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Name::new_compilation_data< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > subj< / 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" > pd< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > ParsingPlugin::new_subject_notify< / 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" > ParsingPlugin::new_subject_notify< / span > < / span > :< br / > < a href = "5-pp.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > subj< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > ATTACH_FEATURE_DATA_TO_SUBJECT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > parsing< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > subj< / span > < span class = "plain-syntax" > , < / span > < a href = "5-pp.html#SP3" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::new_data< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > subj< / 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 >
< / pre >
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< ul class = "endnotetexts" > < li > The structure parsing_data is accessed in 4/ap, 4/act, 4/as, 4/nap, 4/gng, 5/cg, 5/cgl, 5/ts, 6/db, 6/dl, 6/dc and here.< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP4" class = "paragraph-anchor" > < / a > < b > § 4. < / b > We make use of a new kind of rvalue in this feature: < span class = "extract" > < span class = "extract-syntax" > K_understanding< / span > < / span > . This
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is created in < a href = "../kinds-module/2-fk.html" class = "internal" > Familiar Kinds (in kinds)< / a > , not here, but we do have to provide
the following functions to handle its constant rvalues. These correspond to
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< a href = "5-cg.html#SP3" class = "internal" > command_grammar< / a > objects, so comparing them, and producing rvalues, is easy:
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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" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > ParsingPlugin::compare_CONSTANT< / 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" > ParsingPlugin::compare_CONSTANT< / span > < / span > :< br / > < a href = "5-pp.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec2< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > rv< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Node::get_kind_of_value< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > spec1< / 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" > Kinds::eq< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K_understanding< / 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-pp.html#SP4" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::rvalue_to_command_grammar< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > spec1< / span > < span class = "plain-syntax" > ) == < / span > < a href = "5-pp.html#SP4" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::rvalue_to_command_grammar< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > spec2< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > rv< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > rv< / 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" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > ParsingPlugin::rvalue_from_command_grammar< / span > < button class = "popup" onclick = "togglePopup('usagePopup5')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup5" > Usage of < span class = "code-font" > < span class = "function-syntax" > ParsingPlugin::rvalue_from_command_grammar< / span > < / span > :< br / > Parse Clauses - < a href = "4-pc.html#SP1_1_1" > § 1.1.1< / a > < br / > Command Grammar Tokens - < a href = "5-cgt.html#SP12_1" > § 12.1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > command_grammar< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > val< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CONV_FROM< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > command_grammar< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K_understanding< / span > < span class = "plain-syntax" > ) }< / span >
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< span class = "reserved-syntax" > command_grammar< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > ParsingPlugin::rvalue_to_command_grammar< / span > < button class = "popup" onclick = "togglePopup('usagePopup6')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup6" > Usage of < span class = "code-font" > < span class = "function-syntax" > ParsingPlugin::rvalue_to_command_grammar< / span > < / span > :< br / > Command Grammar Tokens - < a href = "5-cgt.html#SP14" > § 14< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > parse_node< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > spec< / span > < span class = "plain-syntax" > ) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > CONV_TO< / span > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > command_grammar< / span > < 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 > A number of global variables are given special treatment by this feature,
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including a whole family with names like "the K understood", for different
kinds K.< sup id = "fnref:1" > < a href = "#fn:1" rel = "footnote" > 1< / a > < / sup >
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< / p >
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< ul class = "footnotetexts" > < li class = "footnote" id = "fn:1" > < p class = "inwebfootnote" > < sup id = "fnref:1" > < a href = "#fn:1" rel = "footnote" > 1< / a > < / sup > This is an awkward contrivance to bridge Inform 7, which is typed, with
the Inter command parser at runtime, whose data is typeless.
< a href = "#fnref:1" title = "return to text" > ↩ < / a > < / p > < / li > < / ul >
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< pre class = "Preform-displayed-code all-displayed-code code-font" >
< span class = "Preform-function-syntax" > < notable-parsing-variables> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < k-kind> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > understood< / 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" > { 0, RP[1] }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > noun< / 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" > location< / 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-constant-syntax" > actor-location< / 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 >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > second< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > noun< / 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" > { 4, - }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > person< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > asked< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { 5, - }< / 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 >
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< 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 = "identifier-syntax" > nonlocal_variable< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > real_location_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > nonlocal_variable< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > actor_location_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "identifier-syntax" > nonlocal_variable< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > Inter_noun_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > nonlocal_variable< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > Inter_second_noun_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
< span class = "identifier-syntax" > nonlocal_variable< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > Inter_actor_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP7" class = "paragraph-anchor" > < / a > < b > § 7. < / b > < / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > ParsingPlugin::new_variable_notify< / span > < button class = "popup" onclick = "togglePopup('usagePopup7')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup7" > Usage of < span class = "code-font" > < span class = "function-syntax" > ParsingPlugin::new_variable_notify< / span > < / span > :< br / > < a href = "5-pp.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > nonlocal_variable< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > var< / 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" > < notable-parsing-variables> (var-> < / span > < span class = "element-syntax" > name< / span > < span class = "plain-syntax" > )) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > switch< / 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" > case< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 0< / 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" > Kinds::eq< / span > < span class = "plain-syntax" > (< / span > < span class = "function-syntax" > < < rp> > < / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NonlocalVariables::kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > var< / span > < span class = "plain-syntax" > ))) {< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > RTVariables::understood_variable< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > var< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NonlocalVariables::allow_to_be_zero< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > var< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 1< / span > < span class = "plain-syntax" > : < / span > < span class = "identifier-syntax" > Inter_noun_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > var< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 2< / span > < span class = "plain-syntax" > : < / span > < span class = "identifier-syntax" > real_location_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > var< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 3< / span > < span class = "plain-syntax" > : < / span > < span class = "identifier-syntax" > actor_location_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > var< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 4< / span > < span class = "plain-syntax" > : < / span > < span class = "identifier-syntax" > Inter_second_noun_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > var< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > case< / span > < span class = "plain-syntax" > < / span > < span class = "constant-syntax" > 5< / span > < span class = "plain-syntax" > : < / span > < span class = "identifier-syntax" > Inter_actor_VAR< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > var< / span > < span class = "plain-syntax" > ; < / span > < span class = "reserved-syntax" > break< / 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 > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP8" class = "paragraph-anchor" > < / a > < b > § 8. < / b > The Inter-level property < span class = "extract" > < span class = "extract-syntax" > name< / span > < / span > provides words by which to recognise an
object in the command parser. It doesn't correspond to any I7-level property,
and is in that sense (okay, ironically) "nameless".
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "function-syntax" > ParsingPlugin::name_property< / span > < button class = "popup" onclick = "togglePopup('usagePopup8')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup8" > Usage of < span class = "code-font" > < span class = "function-syntax" > ParsingPlugin::name_property< / span > < / span > :< br / > < a href = "5-pp.html#SP9_1" > § 9.1< / 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 = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P_name< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > ValueProperties::new_nameless< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "name"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K_text< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Hierarchy::make_available< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > RTProperties::iname< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P_name< / span > < span class = "plain-syntax" > ));< / span >
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< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > P_name< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
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< / pre >
< p class = "commentary firstcommentary" > < a id = "SP9" class = "paragraph-anchor" > < / a > < b > § 9. < / b > At model completion time, we need to give every object instance the < span class = "extract" > < span class = "extract-syntax" > name< / span > < / span >
property and also any < span class = "extract" > < span class = "extract-syntax" > parse_name< / span > < / span > routine it may need; and we similarly
define < span class = "extract" > < span class = "extract-syntax" > parse_name< / span > < / span > routines for kinds of objects. Note that kinds never
get the < span class = "extract" > < span class = "extract-syntax" > name< / span > < / span > property.
< / p >
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< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > ParsingPlugin::complete_model< / span > < button class = "popup" onclick = "togglePopup('usagePopup9')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup9" > Usage of < span class = "code-font" > < span class = "function-syntax" > ParsingPlugin::complete_model< / span > < / span > :< br / > < a href = "5-pp.html#SP1" > § 1< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > stage< / 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" > stage< / span > < span class = "plain-syntax" > == < / span > < span class = "identifier-syntax" > WORLD_STAGE_V< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > instance< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > P_parse_name< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > ValueProperties::new_nameless< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "string-syntax" > "parse_name"< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K_value< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER_INSTANCES< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > K_object< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > subj< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Instances::as_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-pp.html#SP9_1" class = "named-paragraph-link" > < span class = "named-paragraph" > Assert the Inter name property< / span > < span class = "named-paragraph-number" > 9.1< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-pp.html#SP9_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Assert the Inter parse-name property< / span > < span class = "named-paragraph-number" > 9.2< / span > < / a > < / span > < span class = "plain-syntax" > ;< / span >
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< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > LOOP_OVER_BASE_KINDS< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / 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" > Kinds::Behaviour::is_subkind_of_object< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inference_subject< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > subj< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > KindSubjects::from_kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > < / span > < span class = "named-paragraph-container code-font" > < a href = "5-pp.html#SP9_2" class = "named-paragraph-link" > < span class = "named-paragraph" > Assert the Inter parse-name property< / span > < span class = "named-paragraph-number" > 9.2< / span > < / a > < / 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 > < span class = "reserved-syntax" > return< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< p class = "commentary firstcommentary" > < a id = "SP9_1" class = "paragraph-anchor" > < / a > < b > § 9.1. < / b > Values for the < span class = "extract" > < span class = "extract-syntax" > name< / span > < / span > property are actually small arrays of dictionary words.
< / p >
< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Assert the Inter name property< / span > < span class = "named-paragraph-number" > 9.1< / 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 = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Naming::object_is_privately_named< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / 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 = "identifier-syntax" > from_kind< / 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" > kind< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Instances::to_kind< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Instances::get_name_in_play< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::empty< / 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" > W< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Kinds::Behaviour::get_name_in_play< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / 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" > Projects::get_language_of_play< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Task::project< / 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" > PW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Instances::get_name_in_play< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Wordings::empty< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > PW< / span > < span class = "plain-syntax" > )) {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > from_kind< / 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" > PW< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Kinds::Behaviour::get_name_in_play< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / 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" > Projects::get_language_of_play< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Task::project< / span > < span class = "plain-syntax" > ()));< / span >
< span class = "plain-syntax" > }< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > ValueProperties::assert< / span > < span class = "plain-syntax" > (< / span > < a href = "5-pp.html#SP8" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::name_property< / span > < / a > < span class = "plain-syntax" > (), < / span > < span class = "identifier-syntax" > Instances::as_subject< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > ),< / span >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Name::name_property_array< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > PW< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > from_kind< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > CERTAIN_CE< / span > < span class = "plain-syntax" > );< / span >
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< span class = "plain-syntax" > }< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-pp.html#SP9" > § 9< / a > .< / li > < / ul >
< p class = "commentary firstcommentary" > < a id = "SP9_2" class = "paragraph-anchor" > < / a > < b > § 9.2. < / b > We attach numbered parse name routines as properties for any object
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where grammar has specified a need. (By default, this will not happen.)
< / p >
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< p class = "commentary" > < span class = "named-paragraph-container code-font" > < span class = "named-paragraph-defn" > Assert the Inter parse-name property< / span > < span class = "named-paragraph-number" > 9.2< / span > < / span > < span class = "comment-syntax" > =< / span >
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< / p >
< pre class = "displayed-code all-displayed-code code-font" >
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< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > inter_name< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > ParseName::compile_if_needed< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > subj< / 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" > S< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > ValueProperties::assert< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > P_parse_name< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > subj< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Rvalues::from_iname< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > S< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > CERTAIN_CE< / span > < span class = "plain-syntax" > );< / span >
< / pre >
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< ul class = "endnotetexts" > < li > This code is used in < a href = "5-pp.html#SP9" > § 9< / a > (twice).< / li > < / ul >
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< p class = "commentary firstcommentary" > < a id = "SP10" class = "paragraph-anchor" > < / a > < b > § 10. < / b > Finally, this feature needs just one new annotation for the parse tree:
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< / p >
< pre class = "definitions code-font" > < span class = "definition-keyword" > enum< / span > < span class = "constant-syntax" > constant_command_grammar_ANNOT< / span > < span class = "plain-syntax" > < / span > < span class = "comment-syntax" > < / span > < span class = "extract" > < span class = "extract-syntax" > command_grammar< / span > < / span > < span class = "comment-syntax" > : for constant values< / span >
< / pre >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "identifier-syntax" > DECLARE_ANNOTATION_FUNCTIONS< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > constant_command_grammar< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > command_grammar< / span > < span class = "plain-syntax" > )< / span >
< / pre >
< p class = "commentary firstcommentary" > < a id = "SP11" class = "paragraph-anchor" > < / a > < b > § 11. < / b > < / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "identifier-syntax" > MAKE_ANNOTATION_FUNCTIONS< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > constant_command_grammar< / span > < span class = "plain-syntax" > , < / span > < span class = "reserved-syntax" > command_grammar< / span > < span class = "plain-syntax" > )< / span >
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< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > ParsingPlugin::nodes_and_annotations< / span > < button class = "popup" onclick = "togglePopup('usagePopup10')" > < span class = "comment-syntax" > ?< / span > < span class = "popuptext" id = "usagePopup10" > Usage of < span class = "code-font" > < span class = "function-syntax" > ParsingPlugin::nodes_and_annotations< / span > < / span > :< br / > < a href = "5-pp.html#SP1" > § 1< / 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" > Annotations::declare_type< / span > < span class = "plain-syntax" > (< / span > < span class = "constant-syntax" > constant_command_grammar_ANNOT< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < a href = "5-pp.html#SP11" class = "function-link" > < span class = "function-syntax" > ParsingPlugin::write_constant_grammar_verb_ANNOT< / span > < / a > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Annotations::allow< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > CONSTANT_NT< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > constant_command_grammar_ANNOT< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > ParsingPlugin::write_constant_grammar_verb_ANNOT< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > text_stream< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > OUT< / 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 = "identifier-syntax" > Node::get_constant_command_grammar< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > p< / span > < span class = "plain-syntax" > ))< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > WRITE< / span > < span class = "plain-syntax" > (< / span > < span class = "string-syntax" > " {command grammar: CG%d}"< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Node::get_constant_command_grammar< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > p< / span > < span class = "plain-syntax" > )-> < / span > < span class = "identifier-syntax" > allocation_id< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
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< nav role = "progress" > < div class = "progresscontainer" >
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< ul class = "progressbar" > < li class = "progressprev" > < a href = "4-rpoa.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 = "progresschapter" > < a href = "4-ap.html" > 4< / a > < / li > < li class = "progresscurrentchapter" > 5< / li > < li class = "progresscurrent" > pp< / li > < li class = "progresssection" > < a href = "5-us.html" > us< / a > < / li > < li class = "progresssection" > < a href = "5-cg.html" > cg< / a > < / li > < li class = "progresssection" > < a href = "5-cgl.html" > cgl< / a > < / li > < li class = "progresssection" > < a href = "5-cgt.html" > cgt< / a > < / li > < li class = "progresssection" > < a href = "5-dt.html" > dt< / a > < / li > < li class = "progresssection" > < a href = "5-pv.html" > pv< / a > < / li > < li class = "progresssection" > < a href = "5-ts.html" > ts< / a > < / li > < li class = "progresschapter" > < a href = "6-dlg.html" > 6< / a > < / li > < li class = "progressnext" > < a href = "5-us.html" > ❯ < / a > < / li > < / ul > < / div >
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< / nav > <!-- End of weave -->
< / main >
< / body >
< / html >