Everything about Abc Programming Language totally explained
ABC is an imperative general-purpose
programming language and
programming environment developed at
CWI,
Netherlands by
Leo Geurts,
Lambert Meertens, and
Steven Pemberton. It is interactive, structured, high-level, and easy to learn and use, intended to be used instead of
BASIC,
Pascal, or even
AWK. It isn't a systems-programming language but is good for teaching or prototyping.
ABC has only five basic
datatypes. It doesn't require variable declarations. It has explicit support for top-down programming. Statement nesting is indicated by
indentation. It provides
infinite precision arithmetic, unlimited sized lists and strings, and other features supporting orthogonality and ease of use by novices. Its designers claim that ABC programs are typically around a quarter the size of the equivalent Pascal or
C programs, and more readable.
ABC was originally a monolithic implementation, leading to an inability to adapt to new requirements, such as creating a
Graphical User Interface. ABC couldn't directly access the underlying file system and operating system.
ABC includes a programming environment with
syntax-directed editing, suggestions,
persistent variables, and multiple workspaces.
ABC is available as an
interpreter/
compiler, currently at version 1.05.02. ABC has been ported to
Unix,
DOS,
Atari, and
Apple Macintosh.
ABC also had a major influence on the design of the
Python programming language;
Guido van Rossum, who developed Python, previously worked for several years on the ABC system in the early 1980s
(External Link
) (External Link).
Example
An example function
words to collect the set of all words in a document:
HOW TO RETURN words document:
PUT IN collection
FOR line IN document:
FOR word IN split line:
IF word not.in collection:
INSERT word IN collection
RETURN collection
Further Information
Get more info on 'Abc Programming Language'.
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