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Typing characters into TECO did not place those characters directly into a document one had to write a series of instructions in the TECO command language telling it to enter the required characters, during which time the edited text was not displayed on the screen. Unlike most modern text editors, TECO has separate modes which the user used to either add text, edit existing text, or display the document.

Before its introduction, the Incompatible Timesharing System (ITS), the operating system on the AI Lab's PDP-6 and PDP-10 computers, featured a default line editor known as Tape Editor and Corrector (TECO) (later changed to Text Editor and Corrector, the ‘tape' referring to paper tape). XEmacs has remained mostly compatible and continues to use Emacs Lisp like GNU Emacs.Įmacs development began at the MIT AI Lab during the 1970s.

Another version in common use, XEmacs, was forked from GNU Emacs in 1991. The most popular (and most ported) version of Emacs is GNU Emacs, created by Stallman for the GNU Project. The word 'emacs' is often pluralized as emacsen, by analogy with boxen (itself used by analogy with oxen) and VAXen. In Unix culture, Emacs became one of the two main contenders in the traditional editor wars, the other being vi. It was inspired by the ideas of TECMAC and TMACS, a pair of TECO-macro editors written by Steele, Dave Moon, Richard Greenblatt, Charles Frankston, and others. It was written in 1976 by Richard Stallman, initially together with Guy L. The original EMACS consisted of a set of Editor MACroS for the TECO editor. Emacs has over 2,000 built-in commands and allows the user to combine these commands into macros to automate work, in particular with the use of Emacs Lisp, a variant of Lisp, providing a deep extension capability.

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One manual describes it as 'the extensible, customizable, self-documenting, real-time display editor.' Development began in the mid-1970s and continues actively as of 2012. (March 2012)Įmacs ( / ˈ iː m æ k s /) is a family of text editors, characterized by their extensibility. This article may require copy editing for grammar, style, cohesion, tone, or spelling.

Aquamacs regex newline