资料来源 : pyDict
巨集,巨集功能
资料来源 : WordNet®
macro
adj : very large in scale or scope or capability; "`macro' in the
word `macroscopic' is a combining form"
macro
n : a single computer instruction that results in a series of
instructions in machine language [syn: {macro instruction}]
资料来源 : Free On-Line Dictionary of Computing
MACRO
1. Assembly language for {VAX/VMS}.
2. {PL/I}-like language with extensions for string processing.
"MACRO: A Programming Language", S.R. Greenwood, SIGPLAN
Notices 14(9):80-91 (Sep 1979).
[{Jargon File}]
macro-
Prefix large. Opposite of {micro-}. In the mainstream and
among other technical cultures (for example, medical people)
this competes with the prefix {mega-}, but hackers tend to
restrict the latter to quantification.
[{Jargon File}]
macro
A name (possibly followed by a {formal argument} list) that is
equated to a text or symbolic expression to which it is to be
expanded (possibly with the substitution of {actual
arguments}) by a macro expander.
The term "macro" originated in early {assembler}s, which
encouraged the use of macros as a structuring and
information-hiding device. During the early 1970s, macro
assemblers became ubiquitous, and sometimes quite as powerful
and expensive as {HLL}s, only to fall from favour as improving
{compiler} technology marginalised {assembly language}
programming (see {languages of choice}). Nowadays the term is
most often used in connection with the {C preprocessor},
{Lisp}, or one of several special-purpose languages built
around a macro-expansion facility (such as {TeX} or {Unix}'s
{troff} suite).
Indeed, the meaning has drifted enough that the collective
"macros" is now sometimes used for code in any special-purpose
application control language (whether or not the language is
actually translated by text expansion), and for macro-like
entities such as the "keyboard macros" supported in some text
editors (and {PC} {TSR}s or {Macintosh} INIT/CDEV keyboard
enhancers).
(1994-12-06)