Parameterized Macro¶

A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion.

Version: v1 · 2026-09-28 · History
Domain-specific #: 11199
Domain group: Applied Sciences & Engineering
Origin domain: Computer Science & Software Engineering
Subdomains: Programming Languages, Preprocessors → Computer Science & Software Engineering

Core Idea¶

Parameterized Macro is treated here as the recurring computer science and information systems identity summarized by this source-grounded definition: A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion.

In computer programming, a macro (short for "macro instruction"; ) is a rule or pattern that specifies how a certain input should be mapped to a replacement output. Applying a macro to an input is known as macro expansion. The input and output may be a sequence of lexical tokens or characters, or a syntax tree.

Character macros are supported in software applications to make it easy to invoke common command sequences. Token and tree macros are supported in some programming languages to enable code reuse or to extend the language, sometimes for domain-specific languages. Macros are used to make a sequence of computing instructions available to the programmer as a single program statement, making the programming task less tedious and less error-prone.

For Parameterized Macro, the abstraction is narrower than the article's general subject matter: a positive case must preserve A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion. Retaining only the name, a familiar example, or a downstream effect is insufficient. The specialist roles and tests remain anchored in computer science and information systems, which is why this identity is domain-specific rather than prime.

Structural Signature¶

Sig role-phrases:

Defining carrier — C preprocessor macros work by simple textual substitution at the token, rather than the character level.
Constitutive relation — Before Lisp had macros, it had so-called FEXPRs, function-like operators whose inputs were not the values computed by the arguments but rather the syntactic forms of the arguments, and whose output were values to be used in the computation.
Operating condition — A macro instruction embedded in the otherwise assembly source code would be processed by a macro compiler, a preprocessor to the assembler, to replace the macro with one or more assembly instructions.
Recognition evidence — McIlroy's 1960 paper was seminal in the area of extending any (including high-level) programming languages through macro processors.
Admissible variation — In modern operating systems such as Unix and its derivatives, operating system access is provided through subroutines, usually provided by dynamic libraries.
Characteristic consequence — They have to some extent fallen into obsolescence following the advent of mouse-driven user interfaces and the availability of keyboard and mouse macros in applications, such as word processors and spreadsheets, making it possible to create application-sensitive keyboard macros.
Failure boundary — They are created by carrying out the sequence once and letting the application record the actions.

What It Is Not¶

Not the whole field of computer science and information systems. The node requires the specific identity stated by A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion.
Not an over-broad reading. This was, however, one of the first instances (if not the first) of compiler bootstrapping.
Not an over-broad reading. Unlike typical macros, sysgen stage 1 macros do not generate data or code to be loaded into storage, but rather use the PUNCH statement to output JCL and associated data.
Not an over-broad reading. However, its function has evolved from and replaced the macro languages that were originally included in some of these applications.
Not automatically String (computing). Retrieval proximity does not establish equivalence; the two identities must be compared by carrier, operation, and failure boundary.

Scope of Application¶

Parameterized Macro applies literally inside computer science and information systems wherever the source-defined carrier and relation can be established. Its documented habitats include:

Application macros and scripting. However, its function has evolved from and replaced the macro languages that were originally included in some of these applications.
Early Lisp macros. Before Lisp had macros, it had so-called FEXPRs, function-like operators whose inputs were not the values computed by the arguments but rather the syntactic forms of the arguments, and whose output were values to be used in the computation.
Evaluation order. Being able to choose the order of evaluation (see lazy evaluation and non-strict functions) enables the creation of new syntactic constructs (e.g. control structures) indistinguishable from those built into the language.
Binding constructs. The most well-known example is the transformation of let into the application of a function to a set of arguments.
History. Macros could be used to interface routines written in assembly language to the front end of applications written in almost any language.
Assembly language. In older operating systems such as those used on IBM mainframes, full operating system functionality was only available to assembler language programs, not to high level language programs (unless assembly language subroutines were used, of course), as the standard macro instructions did not always have counterparts in routines available to high-level languages.

Outside computer science and information systems, the name should be retained only when these same operational conditions survive; otherwise the comparison belongs to the broader parent Pattern or should be marked as analogy.

Clarity¶

A clear use of Parameterized Macro names the carrier, the operative relation, and the conditions under which the source treats the identity as present. The minimal definition is A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion. The strongest recognition evidence in the frozen account is: McIlroy's 1960 paper was seminal in the area of extending any (including high-level) programming languages through macro processors. A report should distinguish that evidence from a proxy, consequence, or common implementation. It should also state the qualification This was, however, one of the first instances (if not the first) of compiler bootstrapping. so that a reader can reproduce the classification rather than infer it from topical resemblance.

Manages Complexity¶

Parameterized Macro compresses multiple computer science and information systems details into a stable diagnostic relation. The source shows both the central mechanism—before Lisp had macros, it had so-called FEXPRs, function-like operators whose inputs were not the values computed by the arguments but rather the syntactic forms of the arguments, and whose output were values to be used in the computation.—and the practical consequence—they have to some extent fallen into obsolescence following the advent of mouse-driven user interfaces and the availability of keyboard and mouse macros in applications, such as word processors and spreadsheets, making it possible to create application-sensitive keyboard macros. This compression makes cases comparable while leaving parameters, conventions, exceptions, and evidential quality explicit. It is lossy by design: local history and implementation details may be omitted only when they do not alter the defining relation.

Abstract Reasoning¶

Type the carrier. Identify the computer science and information systems entities to which the claim applies.
State the relation. Use the source-grounded identity: A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion.
Check operation and conditions. A macro instruction embedded in the otherwise assembly source code would be processed by a macro compiler, a preprocessor to the assembler, to replace the macro with one or more assembly instructions.
Demand recognition evidence. McIlroy's 1960 paper was seminal in the area of extending any (including high-level) programming languages through macro processors.
Test variation. Change an implementation or setting while preserving in modern operating systems such as Unix and its derivatives, operating system access is provided through subroutines, usually provided by dynamic libraries.
Run the collapse test. Remove the defining operation; if the label still seems equally apt, only a topic or correlate was retained.
Reduce cautiously. When the specialist conditions cannot be carried, route the residual comparison to Pattern.

Knowledge Transfer¶

Within the home domain. Knowledge about Parameterized Macro transfers literally when a new case preserves the same carrier type, relation, and recognition test. However, its function has evolved from and replaced the macro languages that were originally included in some of these applications. Before Lisp had macros, it had so-called FEXPRs, function-like operators whose inputs were not the values computed by the arguments but rather the syntactic forms of the arguments, and whose output were values to be used in the computation.

Beyond the home domain. No canonical parent is asserted for Parameterized Macro. An outside case receives the specialist name only when the same typed roles and rejection conditions can be filled literally; otherwise the comparison remains an analogy pending later graph densification.

Examples¶

Canonical¶

A number of competing implementations of hygienic macros exist such as syntax-rules , syntax-case , explicit renaming, and syntactic closures. This case is canonical because it supplies a concrete carrier and lets the defining relation be checked rather than merely named.

Mapped back: carrier → the entities in the documented case; operation → A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion; recognition evidence → McIlroy's 1960 paper was seminal in the area of extending any (including high-level) programming languages through macro processors

Applied / In Practice¶

For example, Scheme has both continuations and hygienic macros, which enables a programmer to design their own control abstractions, such as looping and early exit constructs, without the need to build them into the language. The applied case shows how the identity is used under a second setting or qualification while keeping the same operative relation.

Mapped back: changed setting → Evaluation order; invariant → A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion; boundary → the case exits the class when this was, however, one of the first instances (if not the first) of compiler bootstrapping

Structural Tensions¶

T1 — Stable identity versus admissible variation. This was, however, one of the first instances (if not the first) of compiler bootstrapping. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Which changes preserve the defining relation, and which replace it?

T2 — Recognition versus proxy. Unlike typical macros, sysgen stage 1 macros do not generate data or code to be loaded into storage, but rather use the PUNCH statement to output JCL and associated data. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Does the cited evidence establish the identity or only a correlated sign?

T3 — Definition versus implementation. However, its function has evolved from and replaced the macro languages that were originally included in some of these applications. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Is the observed implementation constitutive, optional, or merely common?

T4 — Scope versus overextension. However, during the late 1990s and to date, Microsoft has been patching and updating its programs. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Can every claimed application fill the same typed roles without metaphor?

T5 — Transfer versus domain accent. C preprocessor macros work by simple textual substitution at the token, rather than the character level. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: Does the receiving case instantiate Parameterized Macro literally, co-instantiate Pattern, or only resemble it?

T6 — Autonomy versus reduction. Before Lisp had macros, it had so-called FEXPRs, function-like operators whose inputs were not the values computed by the arguments but rather the syntactic forms of the arguments, and whose output were values to be used in the computation. The tension matters because emphasizing only one side either dissolves the identity or overstates what the evidence and domain conventions warrant.

Diagnostic: What does Parameterized Macro distinguish that the broader parent Pattern leaves together?

Structural–Framed Character¶

Parameterized Macro is structural-leaning. Its structural side is the repeatable organization summarized by A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion. Its framed side is the computer science and information systems vocabulary that fixes the carrier, evidence, exceptions, and admissible transformations.

Evaluative weight: the identity can be stated descriptively even when applications carry practical stakes. Human-practice dependence: the source-grounded carrier determines whether the relation exists independently or is constituted by a practice. Institutional origin: disciplinary conventions stabilize the name and test. Vocabulary portability: A macro instruction embedded in the otherwise assembly source code would be processed by a macro compiler, a preprocessor to the assembler, to replace the macro with one or more assembly instructions. Import versus recognition: literal transfer requires the same mechanism; shape alone is analogy.

Its portable skeleton is Pattern. Its character: a recurring specialist identity whose thin organization can be abstracted, while its operational meaning remains domain-bound.

Structural Core vs. Domain Accent¶

What is skeletal. A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion. The stable skeleton is the typed relation expressed in that definition and the entry's recognition and collapse tests. The source identifies these operative conditions: C preprocessor macros work by simple textual substitution at the token, rather than the character level. Before Lisp had macros, it had so-called FEXPRs, function-like operators whose inputs were not the values computed by the arguments but rather the syntactic forms of the arguments, and whose output were values to be used in the computation. It further constrains recognition and variation through: A macro instruction embedded in the otherwise assembly source code would be processed by a macro compiler, a preprocessor to the assembler, to replace the macro with one or more assembly instructions. McIlroy's 1960 paper was seminal in the area of extending any (including high-level) programming languages through macro processors.

What is domain-bound. computer science and information systems supplies the operative entities, technical vocabulary, warrants, and exceptions that make Parameterized Macro literal. Its documented scope includes the condition that However, its function has evolved from and replaced the macro languages that were originally included in some of these applications. Another bounded application condition is that Before Lisp had macros, it had so-called FEXPRs, function-like operators whose inputs were not the values computed by the arguments but rather the syntactic forms of the arguments, and whose output were values to be used in the computation. These are not decorative examples; they determine which carrier and evidence can fill the abstraction's roles.

Why no parent is asserted. Removing those specialist details does not currently yield one live catalog node that is a necessary genus for every instance. The entry is therefore approved as unparented rather than attached by topical resemblance. Its collapse evidence remains specific—In modern operating systems such as Unix and its derivatives, operating system access is provided through subroutines, usually provided by dynamic libraries.—and future graph densification may discover a defensible relation only if it preserves that boundary.

Approved unparented node. No current live node supplies a defensible necessary genus or structural prerequisite for Parameterized Macro. The reviewed identity is: A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion. The accelerated suggestion was declined because topical or lexical similarity does not establish hierarchy; the node is admitted without a parent pending later graph densification.
Related reasoning operations. Evidence, representation, comparison, classification, transformation, or evaluation may participate in particular cases, but participation does not make any one of them a necessary parent of every instance.

Neighborhood in Abstraction Space¶

Parameterized Macro sits in a sparse region of the domain-specific corpus (69^th percentile for distinctiveness): few abstractions share its structure, so a faithful description tends to retrieve it precisely.

Family — Computation Models & Complexity Classes (37 abstractions)

Nearest neighbors

Computed from structural-signature embeddings · 2026-10-08

Not to Be Confused With¶

Pattern. The parent omits the specialist differentia. Tell: Can the case establish A parameterized macro (or function-like macro) is a macro that is able to insert given objects into its expansion?
String (computing). , and are often used to store human-readable data, such as words or sentences.. Tell: Which entry's carrier, operation, and failure condition are satisfied?
Programming language. A formal engineered language whose syntax and semantics express computations for execution, translation or analysis by an implementation. Tell: Which entry's carrier, operation, and failure condition are satisfied?
C Syntax. C Syntax is a recurring identity in social sciences, humanities, and arts defined by: Set of rules governing writing of software in the language. Tell: Which entry's carrier, operation, and failure condition are satisfied?
A measurement, proxy, or consequence. Those may provide evidence without being the identity. Tell: Would Parameterized Macro remain present if the detector or downstream effect changed?
A metaphorical analogue. A similar shape outside computer science and information systems lacks the specialist mechanism. Tell: Do the native roles transfer literally, or only the parent Pattern?

References¶

Frozen Wikipedia discovery revision: https://en.wikipedia.org/wiki/Macro_(computer_science) (revision 1370176745).
Preserved source candidate: https://www.oed.com/view/Entry/111926
Preserved source candidate: https://www.oed.com/view/Entry/233194
Preserved source candidate: https://www.oed.com/view/Entry/111927
Preserved source candidate: https://redragonshop.com/blogs/community/keyboard-and-mouse-macros-what-they-are-and-how-to-use-them
Preserved source candidate: http://www.runescape.com/
Preserved source candidate: https://support.microsoft.com/en-US/Excel/automate-tasks-with-the-macro-recorder
Preserved source candidate: https://ubiquity.acm.org/article.cfm?id=985611
Preserved source candidate: https://www.vim.org/scripts/index.php

The frozen Wikipedia revision is discovery provenance. The retained source set was reviewed for identity, formal or operational relation, and scope. The encyclopedia's structural synthesis is bounded to those claims; a thin authority surface is recorded as a nonblocking source-strengthening repair rather than concealed.