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68 relations: Alphabet (formal languages), American National Standards Institute, Ampersand, ANSI escape code, ASCII, Asterisk, Backslash, Bob Bemer, Bourne shell, C (programming language), C++, Caret, Character (computing), Cmd.exe, COMMAND.COM, Computer terminal, Computing, Control character, Control key, Cursor (user interface), Delimiter, Digital Equipment Corporation, Digraphs and trigraphs, Equals sign, Esc key, Escape sequence, Escape sequences in C, Exclusive or, Formal grammar, Glob (programming), Graphic character, Grave accent, Hewlett-Packard, Hexadecimal, HTML, If and only if, Internet Explorer 9, Java (programming language), Leaning toothpick syndrome, Metacharacter, Microsoft Windows, Newline, Octal, Octet (computing), Percent sign, Percent-encoding, Point-to-Point Protocol, PostScript, PowerShell, Printer (computing), ..., Printer Command Language, Programming language, Question mark, Quoted-printable, Rich Text Format, Ruby (programming language), Standard Generalized Markup Language, String literal, Stropping (syntax), Telecommunication, Uniform Resource Identifier, URL, User interface, VT100, VT220, Wildcard character, Working directory, XML. Expand index (18 more) »
Alphabet (formal languages)
In formal language theory, a string is defined as a finite sequence of members of an underlying base set; this set is called the alphabet of a string or collection of strings.
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American National Standards Institute
The American National Standards Institute (ANSI) is a private non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems, and personnel in the United States.
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Ampersand
The ampersand is the logogram &, representing the conjunction "and".
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ANSI escape code
ANSI escape sequences are a standard for in-band signaling to control the cursor location, color, and other options on video text terminals.
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ASCII
ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication.
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Asterisk
An asterisk (*); from Late Latin asteriscus, from Ancient Greek ἀστερίσκος, asteriskos, "little star") is a typographical symbol or glyph. It is so called because it resembles a conventional image of a star. Computer scientists and mathematicians often vocalize it as star (as, for example, in the A* search algorithm or C*-algebra). In English, an asterisk is usually five-pointed in sans-serif typefaces, six-pointed in serif typefaces, and six- or eight-pointed when handwritten. It is often used to censor offensive words, and on the Internet, to indicate a correction to a previous message. The asterisk is derived from the need of the printers of family trees in feudal times for a symbol to indicate date of birth. The original shape was seven-armed, each arm like a teardrop shooting from the center. In computer science, the asterisk is commonly used as a wildcard character, or to denote pointers, repetition, or multiplication.
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Backslash
The backslash (\) is a typographical mark (glyph) used mainly in computing and is the mirror image of the common slash (/).
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Bob Bemer
Robert William Bemer (February 8, 1920 – June 22, 2004) was a computer scientist best known for his work at IBM during the late 1950s and early 1960s.
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Bourne shell
The Bourne shell (sh) is a shell, or command-line interpreter, for computer operating systems.
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C (programming language)
C (as in the letter ''c'') is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations.
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C++
C++ ("see plus plus") is a general-purpose programming language.
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Caret
The caret is an inverted V-shaped grapheme.
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Character (computing)
In computer and machine-based telecommunications terminology, a character is a unit of information that roughly corresponds to a grapheme, grapheme-like unit, or symbol, such as in an alphabet or syllabary in the written form of a natural language.
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Cmd.exe
Command Prompt, also known as cmd.exe or cmd (after its executable file name), is the command-line interpreter on Windows NT, Windows CE, OS/2 and eComStation operating systems.
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COMMAND.COM
COMMAND.COM is the default command-line interpreter for DOS, Windows 95, Windows 98 and Windows ME.
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Computer terminal
A computer terminal is an electronic or electromechanical hardware device that is used for entering data into, and displaying or printing data from, a computer or a computing system.
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Computing
Computing is any goal-oriented activity requiring, benefiting from, or creating computers.
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Control character
In computing and telecommunication, a control character or non-printing character is a code point (a number) in a character set, that does not represent a written symbol.
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Control key
In computing, a Control key is a modifier key which, when pressed in conjunction with another key, performs a special operation (for example, C); similar to the Shift key, the Control key rarely performs any function when pressed by itself.
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Cursor (user interface)
In computer user interfaces, a cursor is an indicator used to show the current position for user interaction on a computer monitor or other display device that will respond to input from a text input or pointing device.
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Delimiter
A delimiter is a sequence of one or more characters used to specify the boundary between separate, independent regions in plain text or other data streams.
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Digital Equipment Corporation
Digital Equipment Corporation, also known as DEC and using the trademark Digital, was a major American company in the computer industry from the 1950s to the 1990s.
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Digraphs and trigraphs
In computer programming, digraphs and trigraphs are sequences of two and three characters, respectively, that appear in source code and, according to a programming language's specification, should be treated as if they were single characters.
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Equals sign
The equals sign or equality sign is a mathematical symbol used to indicate equality.
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Esc key
On computer keyboards, the Esc key (named Escape key in the international standard series ISO/IEC 9995) is a key used to generate the escape character (which can be represented as ASCII code 27 in decimal, Unicode U+001B, or.
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Escape sequence
An escape sequence is a series of characters used to change the state of computers and their attached peripheral devices, rather than to be displayed or printed as regular data bytes would be.
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Escape sequences in C
Escape sequences are used in the programming languages C and C++, and also in many more languages (with some variations) like Java and C#.
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Exclusive or
Exclusive or or exclusive disjunction is a logical operation that outputs true only when inputs differ (one is true, the other is false).
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Formal grammar
In formal language theory, a grammar (when the context is not given, often called a formal grammar for clarity) is a set of production rules for strings in a formal language.
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Glob (programming)
In computer programming, glob patterns specify sets of filenames with wildcard characters.
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Graphic character
In ISO/IEC 646 (commonly known as ASCII) and related standards including ISO 8859 and Unicode, a graphic character is any character intended to be written, printed, or otherwise displayed in a form that can be read by humans.
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Grave accent
The grave accent (`) is a diacritical mark in many written languages, including Breton, Catalan, Corsican, Dutch, Emilian-Romagnol, French, West Frisian, Greek (until 1982; see polytonic orthography), Haitian Creole, Italian, Mohawk, Occitan, Portuguese, Ligurian, Scottish Gaelic, Vietnamese, Welsh, Romansh, and Yoruba.
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Hewlett-Packard
The Hewlett-Packard Company (commonly referred to as HP) or shortened to Hewlett-Packard was an American multinational information technology company headquartered in Palo Alto, California.
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Hexadecimal
In mathematics and computing, hexadecimal (also base, or hex) is a positional numeral system with a radix, or base, of 16.
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HTML
Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications.
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If and only if
In logic and related fields such as mathematics and philosophy, if and only if (shortened iff) is a biconditional logical connective between statements.
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Internet Explorer 9
Internet Explorer 9 or IE9 (officially Windows Internet Explorer 9) is a version of the Internet Explorer web browser from Microsoft.
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Java (programming language)
Java is a general-purpose computer-programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible.
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Leaning toothpick syndrome
In computer programming, leaning toothpick syndrome (LTS) is the situation in which a quoted expression becomes unreadable because it contains a large number of escape characters, usually backslashes ("\"), to avoid delimiter collision.
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Metacharacter
A metacharacter is a character that has a special meaning (instead of a literal meaning) to a computer program, such as a shell interpreter or a regular expression (regex) engine.
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Microsoft Windows
Microsoft Windows is a group of several graphical operating system families, all of which are developed, marketed, and sold by Microsoft.
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Newline
Newline (frequently called line ending, end of line (EOL), line feed, or line break) is a control character or sequence of control characters in a character encoding specification, e.g. ASCII or EBCDIC.
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Octal
The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7.
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Octet (computing)
The octet is a unit of digital information in computing and telecommunications that consists of eight bits.
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Percent sign
The percent (per cent) sign (%) is the symbol used to indicate a percentage, a number or ratio as a fraction of 100.
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Percent-encoding
Percent-encoding, also known as URL encoding, is a mechanism for encoding information in a Uniform Resource Identifier (URI) under certain circumstances.
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Point-to-Point Protocol
In computer networking, Point-to-Point Protocol (PPP) is a data link layer (layer 2) communications protocol used to establish a direct connection between two nodes.
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PostScript
PostScript (PS) is a page description language in the electronic publishing and desktop publishing business.
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PowerShell
PowerShell is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language.
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Printer (computing)
In computing, a printer is a peripheral device which makes a persistent human-readable representation of graphics or text on paper.
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Printer Command Language
Printer Command Language, more commonly referred to as PCL, is a page description language (PDL) developed by Hewlett-Packard as a printer protocol and has become a de facto industry standard.
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Programming language
A programming language is a formal language that specifies a set of instructions that can be used to produce various kinds of output.
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Question mark
The question mark (also known as interrogation point, query, or eroteme in journalism) is a punctuation mark that indicates an interrogative clause or phrase in many languages.
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Quoted-printable
Quoted-Printable, or QP encoding, is an encoding using printable ASCII characters (alphanumeric and the equals sign.
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Rich Text Format
) As an example, the following RTF code: is a document which would be rendered like this when read by a program that supports RTF: This is some bold text.
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Ruby (programming language)
Ruby is a dynamic, interpreted, reflective, object-oriented, general-purpose programming language.
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Standard Generalized Markup Language
The Standard Generalized Markup Language (SGML; ISO 8879:1986) is a standard for defining generalized markup languages for documents.
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String literal
A string literal or anonymous string is a type of literal in programming for the representation of a string value within the source code of a computer program.
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Stropping (syntax)
In computer language design, stropping is a method of explicitly marking letter sequences as having a special property, such as being a keyword, or a certain type of variable or storage location, and thus inhabiting a different namespace from ordinary names ("identifiers"), in order to avoid clashes.
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Telecommunication
Telecommunication is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or other electromagnetic systems.
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Uniform Resource Identifier
A Uniform Resource Identifier (URI) is a string of characters designed for unambiguous identification of resources and extensibility via the URI scheme.
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URL
A Uniform Resource Locator (URL), colloquially termed a web address, is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it.
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User interface
The user interface (UI), in the industrial design field of human–computer interaction, is the space where interactions between humans and machines occur.
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VT100
The VT100 is a video terminal, introduced in August 1978 by Digital Equipment Corporation (DEC).
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VT220
The VT220 is an ANSI standard computer terminal introduced by Digital Equipment Corporation (DEC) in 1983.
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Wildcard character
In software, a wildcard character is a kind of placeholder represented by a single character, such as an asterisk, which can be interpreted as a number of literal characters or an empty string.
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Working directory
In computing, the working directory of a process is a directory of a hierarchical file system, if any, dynamically associated with each process.
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XML
In computing, Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.
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Redirects here:
ASCII 27, Character escaping, Escape (Programming), Escape (programming), Escape char, Escape characters, Escape symbol, \e, ␛.
References
[1] https://en.wikipedia.org/wiki/Escape_character
