Icon is a high-level, general-purpose language that contains a wide variety of features for processing and presenting symbolic data — strings of characters and structures — both as text and as graphic images.
Icon has a large repertoire of operations for manipulating structures — records, lists, sets, and tables — and extensive capabilities for processing strings of characters. At the heart of Icon is a goal — directed expression-evaluation mechanism that simplifies many programming tasks. Storage is allocated automatically — you never have to worry about allocating space — and garbage collection reclaims unused space as necessary.
Applications of Icon include analysing natural languages, reformatting data, generating computer programs, manipulating formulas, formatting documents, artificial intelligence, rapid prototyping, and graphic display of complex objects, and more.
Here’s our recommended free tutorials/articles that’ll help you master Icon.
1. The Icon Analyst
The Icon Analyst provided in-depth coverage of Icon with an emphasis on programming. It focused on technical aspects of the Icon programming language. It ceased publication in 2001 but remains a valuable resource.
2. The Icon Newsletter edited by Ralph E. Griswold, Madge T. Griswold, and Gregg M. Townsend
The Icon Newsletter focused on topical information about the Icon programming language. Sixty issues were published between 1979 and 2000.
3. Fundamentals of the Icon Programming Language by William H. Mitchell
This is the full set of slides for a fifteen-hour course on Icon.
4. An Overview of the Icon Programming Language; Version 9 by Ralph E. Griswold
This article offers a good introduction to the language.
All tutorials in this series:
| Free Programming Tutorials | |
|---|---|
| Java | General-purpose, concurrent, class-based, object-oriented, high-level language |
| C | General-purpose, procedural, portable, high-level language |
| Python | General-purpose, structured, powerful language |
| C++ | General-purpose, portable, free-form, multi-paradigm language |
| C# | Combines the power and flexibility of C++ with the simplicity of Visual Basic |
| JavaScript | Interpreted, prototype-based, scripting language |
| PHP | PHP has been at the helm of the web for many years |
| Ruby | General purpose, scripting, structured, flexible, fully object-oriented language |
| Assembly | As close to writing machine code without writing in pure hexadecimal |
| Swift | Powerful and intuitive general-purpose programming language |
| Groovy | Powerful, optionally typed and dynamic language |
| Go | Compiled, statically typed programming language |
| Pascal | Imperative and procedural language designed in the late 1960s |
| Perl | High-level, general-purpose, interpreted, scripting, dynamic language |
| R | De facto standard among statisticians and data analysts |
| COBOL | Common Business-Oriented Language |
| Scala | Modern, object-functional, multi-paradigm, Java-based language |
| Fortran | The first high-level language, using the first compiler |
| Scratch | Visual programming language designed for 8-16 year-old children |
| Lua | Designed as an embeddable scripting language |
| Logo | Dialect of Lisp that features interactivity, modularity, extensibility |
| Rust | Ideal for systems, embedded, and other performance critical code |
| Lisp | Unique features - excellent to study programming constructs |
| Ada | ALGOL-like programming language, extended from Pascal and others |
| Haskell | Standardized, general-purpose, polymorphically, statically typed language |
| Scheme | General-purpose, functional, language descended from Lisp and Algol |
| Prolog | General purpose, declarative, logic programming language |
| Forth | Imperative stack-based programming language |
| Clojure | Dialect of the Lisp programming language |
| Julia | High-level, high-performance language for technical computing |
| SQL | Access and manipulate data held in a relational database management system |
| Erlang | General-purpose, concurrent, declarative, functional language |
| VimL | Powerful scripting language of the Vim editor |
| OCaml | General-purpose, powerful, high-level language |
| Awk | Versatile language designed for pattern scanning and processing |
| Racket | Platform for programming language design and implementation |
| BASIC | Family of general-purpose, high-level programming languages |
| CoffeeScript | A very succinct programming language that transcompiles into JavaScript |
| LaTeX | Professional document preparation system and document markup language |
| Elixir | Relatively new functional language that runs on the Erlang virtual machine |
| Dart | Client-optimized programming language for fast apps |
| ABAP | Advanced Business Application Programming |
| F# | General purpose, strongly typed, multi-paradigm language. Part of ML |
| Chapel | Parallel-programming language in development at Cray Inc. |
| Dylan | Multi-paradigm language, supports functional & object-oriented programming |
| D | General-purpose systems programming language with a C-like syntax |
| Solidity | Object-oriented, high-level language for implementing smart contracts |
| XML | Set of rules for defining semantic tags that describe the structure and meaning |
| Vala | Object-oriented language with a self-hosting compiler that generates C code |
| ECMAScript | Best known as the language embedded in web browsers |
| Kotlin | Statically typed, general-purpose programming language with type inference |
| TypeScript | Strict syntactical superset of JavaScript, adding optional static typing |
| Markdown | Plain text formatting syntax designed to be easy-to-read and easy-to-write |
| Pike | Interpreted, general-purpose, high-level, cross-platform, dynamic language |
| HTML | HyperText Markup Language |
| Factor | Dynamic stack-based language |
| Objective-C | General purpose language which is a superset of C |
| Standard ML | One of the two main dialects of the ML language |
| Alice | Educational language with an integrated development environment |
| Agda | Dependently typed functional language based on intuitionistic type theory |
| Icon | High-level, general-purpose language |
| PureScript | Small strongly, statically typed language with expressive types |
| Tcl | Dynamic language based on concepts of Lisp, C, and Unix shells |
| Eiffel | Object-oriented language |
| ClojureScript | Compiler for Clojure that targets JavaScript |
| QML | Hierarchical declarative language for user interface layout with a syntax to JSON |
| VHDL | Very High Speed Integrated Circuit Hardware Description Language |
| OpenCL | Open Computing Language |
| Elm | Functional language that compiles to JavaScript |