2021-02-13 01:46:18 +02:00
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
< html >
< head >
< title > Preform for Instances< / title >
< link href = "../docs-assets/Breadcrumbs.css" rel = "stylesheet" rev = "stylesheet" type = "text/css" >
< meta name = "viewport" content = "width=device-width initial-scale=1" >
< meta http-equiv = "Content-Type" content = "text/html; charset=utf-8" >
< meta http-equiv = "Content-Language" content = "en-gb" >
< link href = "../docs-assets/Contents.css" rel = "stylesheet" rev = "stylesheet" type = "text/css" >
< link href = "../docs-assets/Progress.css" rel = "stylesheet" rev = "stylesheet" type = "text/css" >
< link href = "../docs-assets/Navigation.css" rel = "stylesheet" rev = "stylesheet" type = "text/css" >
< link href = "../docs-assets/Fonts.css" rel = "stylesheet" rev = "stylesheet" type = "text/css" >
< link href = "../docs-assets/Base.css" rel = "stylesheet" rev = "stylesheet" type = "text/css" >
2021-02-13 15:48:24 +02:00
< script >
function togglePopup(material_id) {
var popup = document.getElementById(material_id);
popup.classList.toggle("show");
}
< / script >
< link href = "../docs-assets/Popups.css" rel = "stylesheet" rev = "stylesheet" type = "text/css" >
2021-02-13 01:46:18 +02:00
< link href = "../docs-assets/Colours.css" rel = "stylesheet" rev = "stylesheet" type = "text/css" >
2021-02-13 15:18:26 +02:00
< link href = "../docs-assets/Preform-Colours.css" rel = "stylesheet" rev = "stylesheet" type = "text/css" >
2021-02-13 01:46:18 +02:00
< / head >
< body class = "commentary-font" >
< nav role = "navigation" >
< h1 > < a href = "../index.html" >
< img src = "../docs-assets/Inform.png" height = 72" >
< / a > < / h1 >
2022-04-04 20:31:44 +03:00
< ul > < li > < a href = "../index.html" > home< / a > < / li >
< / ul > < h2 > Compiler< / h2 > < ul >
< li > < a href = "../structure.html" > structure< / a > < / li >
< li > < a href = "../inbuildn.html" > inbuild< / a > < / li >
< li > < a href = "../inform7n.html" > inform7< / a > < / li >
< li > < a href = "../intern.html" > inter< / a > < / li >
< li > < a href = "../services.html" > services< / a > < / li >
< / ul > < h2 > Other Tools< / h2 > < ul >
< li > < a href = "../inblorbn.html" > inblorb< / a > < / li >
< li > < a href = "../indocn.html" > indoc< / a > < / li >
< li > < a href = "../inform6.html" > inform6< / a > < / li >
< li > < a href = "../inpolicyn.html" > inpolicy< / a > < / li >
< li > < a href = "../inrtpsn.html" > inrtps< / a > < / li >
2022-04-08 12:23:23 +03:00
< / ul > < h2 > Resources< / h2 > < ul >
< li > < a href = "../extensions.html" > extensions< / a > < / li >
< li > < a href = "../kits.html" > kits< / a > < / li >
2022-04-04 20:31:44 +03:00
< / ul > < h2 > Repository< / h2 > < ul >
< li > < a href = "https://github.com/ganelson/inform" > < img src = "../docs-assets/github.png" height = 18 > github< / a > < / li >
< / ul > < h2 > Related Projects< / h2 > < ul >
< li > < a href = "../../../inweb/docs/index.html" > inweb< / a > < / li >
< li > < a href = "../../../intest/docs/index.html" > intest< / a > < / li >
2021-02-13 01:46:18 +02:00
< / ul >
< / nav >
< main role = "main" >
<!-- Weave of 'Preform for Instances' generated by Inweb -->
< div class = "breadcrumbs" >
2022-04-04 20:31:44 +03:00
< ul class = "crumbs" > < li > < a href = "../index.html" > Home< / a > < / li > < li > < a href = "../inform7n.html" > Inform7< / a > < / li > < li > < a href = "index.html" > knowledge< / a > < / li > < li > < a href = "index.html#2" > Chapter 2: Instances and Variables< / a > < / li > < li > < b > Preform for Instances< / b > < / li > < / ul > < / div >
2021-02-13 15:48:24 +02:00
< p class = "purpose" > Preform grammar to parse names of instances.< / p >
< p class = "commentary firstcommentary" > < a id = "SP1" class = "paragraph-anchor" > < / a > < b > § 1. < / b > When we create instances of a kind whose name coincides with a property
used as a condition, as here:
< / p >
< blockquote >
< p > A door can be ajar, sealed or wedged open.< / p >
< / blockquote >
< p class = "commentary" > we will need "ajar" and so on to be (in most contexts) adjectives rather
than nouns; so, even though they are instances, we do not add those to
the lexicon.
< / p >
2021-02-13 01:46:18 +02:00
2021-02-13 15:48:24 +02:00
< p class = "commentary" > Otherwise, we have a choice of whether to allow ambiguous references or not.
Inform traditionally allows these for instances of object, but not for other
instances: thus "submarine green" (a colour, say) must be spelled out in
full, whereas a "tuna fish" (an object) can be called just "tuna".
< / p >
< pre class = "displayed-code all-displayed-code code-font" >
< span class = "reserved-syntax" > void< / span > < span class = "plain-syntax" > < / span > < span class = "function-syntax" > InstancesPreform::create_as_noun< / 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" > InstancesPreform::create_as_noun< / span > < / span > :< br / > Instances - < a href = "2-ins.html#SP4_2" > § 4.2< / a > < / span > < / button > < span class = "plain-syntax" > (< / span > < span class = "reserved-syntax" > instance< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > I< / 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" > wording< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > ) {< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > int< / span > < span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > exact_parsing< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > any_parsing< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > TRUE< / span > < span class = "plain-syntax" > ;< / span >
2021-02-19 02:21:55 +02:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > property< / span > < span class = "plain-syntax" > *< / span > < span class = "identifier-syntax" > cp< / span > < span class = "plain-syntax" > = < / span > < a href = "3-prp.html#SP18" class = "function-link" > < span class = "function-syntax" > Properties::property_with_same_name_as< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > );< / span >
2021-02-18 01:32:04 +02:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > ((< / span > < span class = "identifier-syntax" > cp< / span > < span class = "plain-syntax" > ) & & (< / span > < a href = "4-cos.html#SP4" class = "function-link" > < span class = "function-syntax" > ConditionsOfSubjects::of_what< / span > < / a > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > cp< / span > < span class = "plain-syntax" > ))) < / span > < span class = "identifier-syntax" > any_parsing< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > FALSE< / span > < span class = "plain-syntax" > ;< / span >
2021-02-13 15:48:24 +02:00
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > if< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > Kinds::Behaviour::is_object< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > K< / span > < span class = "plain-syntax" > )) < / span > < span class = "identifier-syntax" > exact_parsing< / 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" > any_parsing< / 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" > exact_parsing< / span > < span class = "plain-syntax" > )< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > as_noun< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Nouns::new_proper_noun< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NEUTER_GENDER< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > ADD_TO_LEXICON_NTOPT< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NAMED_CONSTANT_MC< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Rvalues::from_instance< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > Task::language_of_syntax< / span > < span class = "plain-syntax" > ());< / span >
< span class = "plain-syntax" > < / span > < span class = "reserved-syntax" > else< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > as_noun< / span > < span class = "plain-syntax" > =< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > Nouns::new_proper_noun< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NEUTER_GENDER< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > ADD_TO_LEXICON_NTOPT< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NOUN_MC< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Rvalues::from_instance< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > ), < / span > < span class = "identifier-syntax" > Task::language_of_syntax< / span > < span class = "plain-syntax" > ());< / span >
< span class = "plain-syntax" > } < / span > < span class = "reserved-syntax" > else< / span > < span class = "plain-syntax" > {< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > -> < / span > < span class = "identifier-syntax" > as_noun< / span > < span class = "plain-syntax" > = < / span > < span class = "identifier-syntax" > Nouns::new_proper_noun< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > W< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NEUTER_GENDER< / span > < span class = "plain-syntax" > , < / span > < span class = "constant-syntax" > 0< / span > < span class = "plain-syntax" > ,< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NAMED_CONSTANT_MC< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > NULL< / span > < span class = "plain-syntax" > , < / span > < span class = "identifier-syntax" > Task::language_of_syntax< / span > < span class = "plain-syntax" > ());< / span >
< span class = "plain-syntax" > }< / span >
< span class = "plain-syntax" > < / span > < span class = "identifier-syntax" > NameResolution::initialise< / span > < span class = "plain-syntax" > (< / span > < span class = "identifier-syntax" > I< / span > < span class = "plain-syntax" > -> < / span > < span class = "element-syntax" > as_noun< / span > < span class = "plain-syntax" > );< / span >
< span class = "plain-syntax" > }< / span >
< / pre >
< p class = "commentary firstcommentary" > < a id = "SP2" class = "paragraph-anchor" > < / a > < b > § 2. < / b > Since we store instance names in two different ways, we have to parse them
in two different ways, and here goes.
< / p >
< p class = "commentary" > Two versions are provided. As usual, the nonterminals beginning with "s-"
return specification < span class = "extract" > < span class = "extract-syntax" > parse_node< / span > < / span > pointers; the ones without return < span class = "extract" > < span class = "extract-syntax" > instance< / span > < / span >
pointers.
2021-02-13 01:46:18 +02:00
< / p >
2021-02-13 15:18:26 +02:00
< pre class = "Preform-displayed-code all-displayed-code code-font" >
2021-02-13 15:48:24 +02:00
< span class = "Preform-function-syntax" > < s-object-instance> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > internal< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > parse_node< / span > < span class = "Preform-plain-syntax" > *< / span > < span class = "Preform-identifier-syntax" > p< / span > < span class = "Preform-plain-syntax" > = < / span > < span class = "Preform-identifier-syntax" > Lexicon::retrieve< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > NOUN_MC< / span > < span class = "Preform-plain-syntax" > , < / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > );< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > if< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > p< / span > < span class = "Preform-plain-syntax" > ) {< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > noun_usage< / span > < span class = "Preform-plain-syntax" > *< / span > < span class = "Preform-identifier-syntax" > nu< / span > < span class = "Preform-plain-syntax" > = < / span > < span class = "Preform-identifier-syntax" > Nouns::disambiguate< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > p< / span > < span class = "Preform-plain-syntax" > , < / span > < span class = "Preform-identifier-syntax" > FALSE< / span > < span class = "Preform-plain-syntax" > );< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > noun< / span > < span class = "Preform-plain-syntax" > *< / span > < span class = "Preform-identifier-syntax" > nt< / span > < span class = "Preform-plain-syntax" > = < / span > < span class = "Preform-identifier-syntax" > nu< / span > < span class = "Preform-plain-syntax" > -> < / span > < span class = "Preform-identifier-syntax" > noun_used< / span > < span class = "Preform-plain-syntax" > ;< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > if< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > Nouns::is_proper< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > nt< / span > < span class = "Preform-plain-syntax" > )) {< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > instance< / span > < span class = "Preform-plain-syntax" > *< / span > < span class = "Preform-identifier-syntax" > I< / span > < span class = "Preform-plain-syntax" > = < / span > < span class = "Preform-identifier-syntax" > Rvalues::to_object_instance< / span > < span class = "Preform-plain-syntax" > (< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > RETRIEVE_POINTER_parse_node< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > Nouns::meaning< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > nt< / span > < span class = "Preform-plain-syntax" > )));< / span >
< span class = "Preform-plain-syntax" > ==> { -, < / span > < span class = "Preform-identifier-syntax" > Rvalues::from_instance< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > I< / span > < span class = "Preform-plain-syntax" > ) };< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > return< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > TRUE< / span > < span class = "Preform-plain-syntax" > ;< / span >
< span class = "Preform-plain-syntax" > }< / span >
< span class = "Preform-plain-syntax" > }< / span >
< span class = "Preform-plain-syntax" > ==> { < / span > < span class = "Preform-identifier-syntax" > fail< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > nonterminal< / span > < span class = "Preform-plain-syntax" > };< / span >
< span class = "Preform-plain-syntax" > }< / span >
< span class = "Preform-function-syntax" > < s-non-object-instance> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > internal< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > = < / span > < span class = "Preform-identifier-syntax" > Articles::remove_the< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > );< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > parse_node< / span > < span class = "Preform-plain-syntax" > *< / span > < span class = "Preform-identifier-syntax" > p< / span > < span class = "Preform-plain-syntax" > = < / span > < span class = "Preform-identifier-syntax" > Lexicon::retrieve< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > NAMED_CONSTANT_MC< / span > < span class = "Preform-plain-syntax" > , < / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > );< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > if< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > p< / span > < span class = "Preform-plain-syntax" > ) {< / span >
< span class = "Preform-plain-syntax" > ==> { -, < / span > < span class = "Preform-identifier-syntax" > p< / span > < span class = "Preform-plain-syntax" > }; < / span > < span class = "Preform-reserved-syntax" > return< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > TRUE< / span > < span class = "Preform-plain-syntax" > ;< / span >
< span class = "Preform-plain-syntax" > }< / span >
< span class = "Preform-plain-syntax" > ==> { < / span > < span class = "Preform-identifier-syntax" > fail< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > nonterminal< / span > < span class = "Preform-plain-syntax" > };< / span >
< span class = "Preform-plain-syntax" > }< / span >
< span class = "Preform-function-syntax" > < s-instance> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < s-instance-of-object> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { pass 1 }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < s-instance-of-non-object> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { pass 1 }< / span >
2021-02-13 15:18:26 +02:00
< span class = "Preform-function-syntax" > < instance-of-object> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > internal< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > = < / span > < span class = "Preform-identifier-syntax" > Articles::remove_the< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > );< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > if< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-function-syntax" > < s-object-instance> < / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > )) {< / span >
< span class = "Preform-plain-syntax" > ==> { -, < / span > < span class = "Preform-identifier-syntax" > Rvalues::to_instance< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-function-syntax" > < < rp> > < / span > < span class = "Preform-plain-syntax" > ) };< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > return< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > TRUE< / span > < span class = "Preform-plain-syntax" > ;< / span >
< span class = "Preform-plain-syntax" > }< / span >
< span class = "Preform-plain-syntax" > ==> { < / span > < span class = "Preform-identifier-syntax" > fail< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > nonterminal< / span > < span class = "Preform-plain-syntax" > };< / span >
< span class = "Preform-plain-syntax" > }< / span >
2021-02-13 01:46:18 +02:00
2021-02-13 15:18:26 +02:00
< span class = "Preform-function-syntax" > < instance-of-non-object> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > internal< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-constant-syntax" > {< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > = < / span > < span class = "Preform-identifier-syntax" > Articles::remove_the< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > );< / span >
2021-02-13 15:48:24 +02:00
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > if< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-function-syntax" > < s-non-object-instance> < / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-identifier-syntax" > W< / span > < span class = "Preform-plain-syntax" > )) {< / span >
< span class = "Preform-plain-syntax" > ==> { -, < / span > < span class = "Preform-identifier-syntax" > Rvalues::to_instance< / span > < span class = "Preform-plain-syntax" > (< / span > < span class = "Preform-function-syntax" > < < rp> > < / span > < span class = "Preform-plain-syntax" > ) };< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > return< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > TRUE< / span > < span class = "Preform-plain-syntax" > ;< / span >
2021-02-13 15:18:26 +02:00
< span class = "Preform-plain-syntax" > }< / span >
< span class = "Preform-plain-syntax" > ==> { < / span > < span class = "Preform-identifier-syntax" > fail< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-identifier-syntax" > nonterminal< / span > < span class = "Preform-plain-syntax" > };< / span >
< span class = "Preform-plain-syntax" > }< / span >
2021-02-13 01:46:18 +02:00
2021-02-13 15:18:26 +02:00
< span class = "Preform-function-syntax" > < instance> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ::=< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < instance-of-object> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > |< / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { pass 1 }< / span >
< span class = "Preform-plain-syntax" > < / span > < span class = "Preform-function-syntax" > < instance-of-non-object> < / span > < span class = "Preform-plain-syntax" > < / span > < span class = "Preform-reserved-syntax" > ==> < / span > < span class = "Preform-plain-syntax" > { pass 1 }< / span >
2021-02-13 01:46:18 +02:00
< / pre >
2021-02-13 15:18:26 +02:00
< ul class = "endnotetexts" > < li > This is < a href = "../words-module/4-ap.html" class = "internal" > Preform grammar< / a > , not regular C code.< / li > < / ul >
2021-02-13 01:46:18 +02:00
< nav role = "progress" > < div class = "progresscontainer" >
2021-02-15 18:13:38 +02:00
< ul class = "progressbar" > < li class = "progressprev" > < a href = "2-iaa.html" > ❮ < / a > < / li > < li class = "progresschapter" > < a href = "P-wtmd.html" > P< / a > < / li > < li class = "progresschapter" > < a href = "1-km.html" > 1< / a > < / li > < li class = "progresscurrentchapter" > 2< / li > < li class = "progresssection" > < a href = "2-ins.html" > ins< / a > < / li > < li class = "progresssection" > < a href = "2-iaa.html" > iaa< / a > < / li > < li class = "progresscurrent" > pfi< / li > < li class = "progresssection" > < a href = "2-oi.html" > oi< / a > < / li > < li class = "progresssection" > < a href = "2-nv.html" > nv< / a > < / li > < li class = "progresschapter" > < a href = "3-prp.html" > 3< / a > < / li > < li class = "progresschapter" > < a href = "4-is.html" > 4< / a > < / li > < li class = "progresschapter" > < a href = "5-inf.html" > 5< / a > < / li > < li class = "progressnext" > < a href = "2-oi.html" > ❯ < / a > < / li > < / ul > < / div >
2021-02-13 01:46:18 +02:00
< / nav > <!-- End of weave -->
< / main >
< / body >
< / html >