ABC (programming language)
| Paradigm | multi-paradigm: imperative, procedural, structured |
|---|---|
| Designed by | Leo Geurts, Lambert Meertens, Steven Pemberton |
| Developer | CWI |
| Stable release |
1.05.02
|
| Typing discipline | strong, polymorphic |
| Influenced by | |
| SETL & ALGOL 68 | |
| Influenced | |
| Python | |
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 intended to be used instead of BASIC, Pascal, or AWK. It is not meant to be a systems-programming language but is intended for teaching or prototyping.
The language had a major influence on the design of the Python programming language (as a counterexample); Guido van Rossum, who developed Python, previously worked for several years on the ABC system in the early 1980s.
Its designers claim that ABC programs are typically around a quarter the size of the equivalent Pascal or C programs, and more readable. Key features include:
ABC was originally a monolithic implementation, leading to an inability to adapt to new requirements, such as creating a graphical user interface. ABC could not directly access the underlying file system and operating system.
The full ABC system includes a programming environment with syntax-directed editing, suggestions, persistent variables, and multiple workspaces - and is available as an interpreter/compiler, currently at version 1.05.02, and ported to Unix, DOS, Atari, and Apple Macintosh.
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