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Whitespace (programming Language)
Whitespace is an esoteric programming language developed by Edwin Brady and Chris Morris at the University of Durham (also developers of the Kaya and Idris programming languages). It was released on 1 April 2003 (April Fool's Day). Its name is a reference to whitespace characters. Unlike most programming languages, which ignore or assign little meaning to most whitespace characters, the Whitespace interpreter ignores any non-whitespace characters. Only spaces, tabs and linefeeds have meaning. A consequence of this property is that a Whitespace program can easily be contained within the whitespace characters of a program written in a language which ignores whitespace, making the text a polyglot. The language itself is an imperative stack-based language. The virtual machine on which the programs run has a stack and a heap. The programmer is free to push arbitrary-width integers onto the stack (currently there is no implementation of floating point numbers) and can also acc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitespace In Vim2
White space or whitespace may refer to: Technology * Whitespace characters, characters in computing that represent horizontal or vertical space * White spaces (radio), allocated but locally unused radio frequencies * TV White Space Database, a mechanism to enable utilization of the allocated but locally unused radio frequencies * Whitespace (programming language), an esoteric programming language Other uses * White space (visual arts), portions of a page layout or image left unmarked **Negative space, portions of a page layout or image deliberately left unmarked and used as a component * Space (punctuation), the space between two words of text * '' The White Space'', a 2009 drama film * White Space, a two-book science fiction series by Elizabeth Bear * A location in the video game '' OMORI'' See also * Space (other) Space is the boundless three-dimensional extent in which objects and events have relative position and direction. Space, SPACE, spacing, or The Space may a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slashdot
''Slashdot'' (sometimes abbreviated as ''/.'') is a social news website that originally advertised itself as "News for Nerds. Stuff that Matters". It features news stories concerning science, technology, and politics that are submitted and evaluated by site users and editors. Each story has a comments section attached to it where users can add online comments. The website was founded in 1997 by Hope College students Rob Malda, also known as "CmdrTaco", and classmate Jeff Bates, also known as "Hemos". In 2012, they sold it to DHI Group, Inc. (i.e., Dice Holdings International, which created the Dice.com website for tech job seekers). In January 2016, BIZX acquired both slashdot.org and SourceForge. In December 2019, BIZX rebranded to Slashdot Media. Summaries of stories and hyperlinks to news articles are submitted by Slashdot's own users, and each story becomes the topic of a threaded discussion among users. Discussion is moderated by a user-based moderation system. Randomly sele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lolcats
A lolcat (pronounced ), or LOLcat, is an image macro of one or more cats. Lolcat images' idiosyncratic and intentionally grammatically incorrect text is known as lolspeak. Lolcat is a compound word of the acronymic abbreviation LOL (laugh out loud) and the word "cat". A synonym for lolcat is cat macro or cat meme, since the images are a type of image macro and also a well-known genre of meme. Lolcats are commonly designed for photo sharing imageboards and other Internet forums. History British portrait photographer Harry Pointer created a carte de visite series featuring cats posed in various situations in the early 1870s. To these he usually added amusing text intended to further enhance their appeal. Other notable early figures include Harry Whittier Frees and (using mounted animals) Walter Potter. The first recorded use of the term "lolcat" was used on 4chan, an anonymous imageboard. The word "Lolcat" was in use as early as June 2006; the domain name lolcats.com was re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LOLCODE
LOLCODE is an esoteric programming language inspired by lolspeak, the language expressed in examples of the lolcat Internet meme. The language was created in 2007 by Adam Lindsay, a researcher at the Computing Department of Lancaster University. The language is not clearly defined in terms of operator priorities and correct syntax, but several functioning interpreters and compilers exist. One interpretation of the language has been proven Turing-complete. Language structure and examples LOLCODE's keywords are drawn from the heavily compressed (shortened) patois of the lolcat Internet meme. Here follow a "Hello, World!" program and a simple program to output a file to a monitor. Similar code was printed in the ''Houston Chronicle''. * :) represents a newline (\n) * :> represents a tab (\t) * :o represents a bell character (\a) * :" represents a literal double quote (") * :: represents a single literal colon (:) * :() converts a single hexidecimal Unicode code point to loc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
INTERCAL
The Compiler Language With No Pronounceable Acronym (INTERCAL) is an esoteric programming language that was created as a parody by Don Woods and , two Princeton University students, in 1972. It satirizes aspects of the various programming languages at the time, as well as the proliferation of proposed language constructs and notations in the 1960s. There are two maintained implementations of INTERCAL dialects: C-INTERCAL (created in 1990), maintained by Eric S. Raymond and Alex Smith, and CLC-INTERCAL, maintained by Claudio Calvelli. History According to the original manual by the authors, The original Princeton implementation used punched cards and the EBCDIC character set. To allow INTERCAL to run on computers using ASCII, substitutions for two characters had to be made: $ substituted for ¢ as the ''mingle'' operator, "represent ngthe increasing cost of software in relation to hardware", and ? was substituted for ⊻ as the unary exclusive-or operator to "correctly expre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brainfuck
Brainfuck is an esoteric programming language created in 1993 by Urban Müller. Notable for its extreme minimalism, the language consists of only eight simple commands, a data pointer and an instruction pointer. While it is fully Turing complete, it is not intended for practical use, but to challenge and amuse programmers. Brainfuck requires one to break commands into microscopic steps. The language's name is a reference to the slang term ''brainfuck'', which refers to things so complicated or unusual that they exceed the limits of one's understanding, as it was not meant or made for designing actual software but to challenge the boundaries of computer programming. History In 1992, Urban Müller, a Swiss physics student, took over a small online archive for Amiga software. The archive grew more popular, and was soon mirrored around the world. Today, it is the world's largest Amiga archive, known as Aminet. Müller designed Brainfuck with the goal of implementing the small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esoteric Programming Language
An esoteric programming language (sometimes shortened to esolang) is a programming language designed to test the boundaries of computer programming language design, as a proof of concept, as software art, as a hacking interface to another language (particularly functional programming or procedural programming languages), or as a joke. The use of the word ''esoteric'' distinguishes them from languages that working developers use to write software. The creators of most esolangs do not intend them to be used for mainstream programming, although some esoteric features, such as visuospatial syntax, have inspired practical applications in the arts. Such languages are often popular among hackers and hobbyists. Usability is rarely a goal for designers of esoteric programming languages; often their design leads to quite the opposite. Their usual aim is to remove or replace conventional language features while still maintaining a language that is Turing-complete, or even one for which the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Python Syntax And Semantics
The syntax of the Python programming language is the set of rules that defines how a Python program will be written and interpreted (by both the runtime system and by human readers). The Python language has many similarities to Perl, C, and Java. However, there are some definite differences between the languages. Design philosophy Python was designed to be a highly readable language. It has a relatively uncluttered visual layout and uses English keywords frequently where other languages use punctuation. Python aims to be simple and consistent in the design of its syntax, encapsulated in the mantra , from the Zen of Python. This mantra is deliberately opposed to the Perl and Ruby mantra, "there's more than one way to do it". Keywords Python has 35 keywords or ''reserved words''; they cannot be used as identifiers. *and *as *assert *async *await *break *class *continue *def *del *elif *else *except *False *finally *for *from *global *if *import *in *is *lambda *None * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Off-side Rule
A computer programming language is said to adhere to the off-side rule of syntax if blocks in that language are expressed by their indentation. The term was coined by Peter Landin, possibly as a pun on the offside rule in association football. This is contrasted with free-form languages, notably curly-bracket programming languages, where indentation has no computational meaning and indent style is only a matter of coding conventions and formatting. Definition Peter Landin, in his 1966 article " The Next 700 Programming Languages", defined the off-side rule thus: "Any non-whitespace token to the left of the first such token on the previous line is taken to be the start of a new declaration." Code examples The following is an example of indentation blocks in Python. The colons are part of the Python language syntax for readability; they are not needed to implement the off-side rule. In Python, the rule is taken to define the boundaries of statements rather than declarations. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steganography
Steganography ( ) is the practice of representing information within another message or physical object, in such a manner that the presence of the information is not evident to human inspection. In computing/electronic contexts, a computer file, message, image, or video is concealed within another file, message, image, or video. The word ''steganography'' comes from Greek ''steganographia'', which combines the words ''steganós'' (), meaning "covered or concealed", and ''-graphia'' () meaning "writing". The first recorded use of the term was in 1499 by Johannes Trithemius in his '' Steganographia'', a treatise on cryptography and steganography, disguised as a book on magic. Generally, the hidden messages appear to be (or to be part of) something else: images, articles, shopping lists, or some other cover text. For example, the hidden message may be in invisible ink between the visible lines of a private letter. Some implementations of steganography that lack a shared secret are f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyglot (computing)
In computing, a polyglot is a computer program or script written in a valid form of multiple programming languages or file formats. The name was coined by analogy to multilingualism. A polyglot file is composed by combining syntax from two or more different formats. When the file formats are to be compiled or interpreted as source code, the file can be said to be a polyglot program, though file formats and source code syntax are both fundamentally streams of bytes, and exploiting this commonality is key to the development of polyglots. Polyglot files have practical applications in compatibility, but can also present a security risk when used to bypass validation or to exploit a vulnerability. History Polyglot programs have been crafted as challenges and curios in hacker culture since at least the early 1990s. A notable early example, named simply polyglot was published on the Usenet group rec.puzzles in 1991, supporting 8 languages, though this was inspired by even earlier prog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tab Key
The tab key (abbreviation of tabulator key or tabular key) on a keyboard is used to advance the cursor to the next tab stop. History The word ''tab'' derives from the word ''tabulate'', which means "to arrange data in a tabular, or table, form." When a person wanted to type a table (of numbers or text) on a typewriter, there was a lot of time-consuming and repetitive use of the space bar and backspace key. To simplify this, a horizontal bar was placed in the mechanism called the tabulator rack. Pressing the tab key would advance the carriage to the next tabulator stop. The original tabulator stops were adjustable clips that could be arranged by the user on the tabulator rack. Fredric Hillard filed a patent application for such a mechanism in 1900. The tab mechanism came into its own as a rapid and consistent way of uniformly indenting the first line of each paragraph. Often a first tab stop at 5 or 6 characters was used for this, far larger than the indentation used when t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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