R6RS syntax-case macros
E571519
R6RS syntax-case macros are a powerful, hygienic macro system for Scheme that allows pattern-based source code transformation with full access to the language for expressing complex compile-time logic.
All labels observed (1)
| Label | Occurrences |
|---|---|
| R6RS syntax-case macros canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6145058 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: R6RS syntax-case macros Context triple: [Chez Scheme, supportsFeature, R6RS syntax-case macros]
-
A.
R7RS (small) (partial)
R7RS (small) (partial) is a subset of the Revised⁷ Report on the Algorithmic Language Scheme standard that defines a core, lightweight version of the Scheme programming language.
-
B.
R4RS
R4RS is the fourth revised report on the Scheme programming language standard, defining its core syntax, semantics, and standard procedures.
-
C.
Scheme R5RS
Scheme R5RS is the fifth revised report of the Scheme programming language standard, defining its core syntax, semantics, and standard libraries.
-
D.
Chez Scheme
Chez Scheme is a high-performance, optimizing implementation of the Scheme programming language widely used for both research and production systems.
-
E.
Rabbit: A Compiler for Scheme (thesis)
"Rabbit: A Compiler for Scheme" is Guy L. Steele Jr.'s influential doctoral thesis that introduced one of the earliest optimizing compilers for the Scheme programming language, helping to establish Scheme as a practical vehicle for language and compiler research.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: R6RS syntax-case macros Target entity description: R6RS syntax-case macros are a powerful, hygienic macro system for Scheme that allows pattern-based source code transformation with full access to the language for expressing complex compile-time logic.
-
A.
R7RS (small) (partial)
R7RS (small) (partial) is a subset of the Revised⁷ Report on the Algorithmic Language Scheme standard that defines a core, lightweight version of the Scheme programming language.
-
B.
R4RS
R4RS is the fourth revised report on the Scheme programming language standard, defining its core syntax, semantics, and standard procedures.
-
C.
Scheme R5RS
Scheme R5RS is the fifth revised report of the Scheme programming language standard, defining its core syntax, semantics, and standard libraries.
-
D.
Chez Scheme
Chez Scheme is a high-performance, optimizing implementation of the Scheme programming language widely used for both research and production systems.
-
E.
Rabbit: A Compiler for Scheme (thesis)
"Rabbit: A Compiler for Scheme" is Guy L. Steele Jr.'s influential doctoral thesis that introduced one of the earliest optimizing compilers for the Scheme programming language, helping to establish Scheme as a practical vehicle for language and compiler research.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Scheme macro system
ⓘ
hygienic macro system ⓘ macro system ⓘ |
| allows | controlled breaking of hygiene when needed ⓘ |
| basedOn | syntax-case system by R. Kent Dybvig ⓘ |
| category | metaprogramming facility ⓘ |
| contrastsWith | R5RS syntax-rules macros ⓘ |
| definedIn | Revised^6 Report on the Algorithmic Language Scheme ⓘ |
| definedInStandard | R6RS ⓘ |
| designedFor |
maintaining referential transparency of macros
ⓘ
writing complex macros ⓘ |
| enables |
abstraction over binding constructs
ⓘ
compile-time optimization transformations ⓘ definition of high-level language constructs ⓘ definition of new control structures ⓘ definition of new module-like abstractions ⓘ embedding of domain-specific languages in Scheme ⓘ |
| ensures | macro hygiene by default ⓘ |
| hasCoreForm |
identifier-syntax
ⓘ
syntax ⓘ syntax-case ⓘ syntax-object constructors and accessors ⓘ syntax-rules (R6RS variant) ⓘ syntax-violation ⓘ with-syntax ⓘ |
| moreExpressiveThan |
R5RS syntax-rules macros
ⓘ
linked to:
Scheme R5RS
|
| programmingLanguage | Scheme ⓘ |
| provides |
access to lexical context of syntax objects
ⓘ
explicit control over macro hygiene ⓘ pattern language for destructuring syntax ⓘ support for phased libraries and macro expansion phases ⓘ template language for constructing syntax ⓘ |
| scope | compile-time ⓘ |
| standardizedInYear | 2007 ⓘ |
| supports |
arbitrary Scheme code at macro expansion time
ⓘ
compile-time computation ⓘ context-sensitive macros ⓘ error reporting with source locations ⓘ hygienic macro expansion ⓘ identifier renaming to avoid capture ⓘ lexical scoping preservation ⓘ macro-generating macros ⓘ macro-introduced bindings ⓘ pattern-based source transformation ⓘ syntax pattern matching ⓘ template-based code generation ⓘ |
| uses |
guards (fenders) for additional matching conditions
ⓘ
pattern variables in syntax-case clauses ⓘ syntax objects to represent code with lexical context ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: R6RS syntax-case macros Description of subject: R6RS syntax-case macros are a powerful, hygienic macro system for Scheme that allows pattern-based source code transformation with full access to the language for expressing complex compile-time logic.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.