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Stallman saw a problem in too much customization and de facto forking and set certain conditions for usage. The first operational EMACS system existed in late 1976. Stallman picked the name Emacs "because was not in use as an abbreviation on ITS at the time." An apocryphal hacker koan alleges that the program was named after Emack & Bolio's, a popular Cambridge ice cream store. The resulting system was called EMACS, which stood for Editing MACroS or, alternatively, E with MACroS. Steele and Stallman's finished implementation included facilities for extending and documenting the new macro set. Two years later, Guy Steele took on the project of unifying the diverse macros into a single set.
#Aquamacs auctex mac
The new version of TECO quickly became popular at the AI Lab and soon accumulated a large collection of custom macros whose names often ended in MAC or MACS, which stood for macro. Almost all modern editors use this approach. Instead of adopting E's approach of structuring the file for page-random access on disk, Stallman modified TECO to handle large buffers more efficiently and changed its file-management method to read, edit, and write the entire file as a single buffer. TECO was a page-sequential editor that was designed for editing paper tape on the PDP-1 and typically allowed editing on only one page at a time, in the order of the pages in the file. Į had another feature that TECO lacked: random-access editing. Stallman reimplemented this mode to run efficiently and then added a macro feature to the TECO display-editing mode that allowed the user to redefine any keystroke to run a TECO program.
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He returned to MIT where Carl Mikkelsen, a hacker at the AI Lab, had added to TECO a combined display/editing mode called Control-R that allowed the screen display to be updated each time the user entered a keystroke. He was impressed by the editor's intuitive WYSIWYG (What You See Is What You Get) behavior, which has since become the default behavior of most modern text editors. Richard Stallman visited the Stanford AI Lab in 1972 or 1974 and saw the lab's E editor, written by Fred Wright. (A similar technique was used to allow overtyping.) This behavior is similar to that of the program ed. One could not place characters directly into a document by typing them into TECO, but would instead enter a character ('i') in the TECO command language telling it to switch to input mode, enter the required characters, during which time the edited text was not displayed on the screen, and finally enter a character () to switch the editor back to command mode. Unlike most modern text editors, TECO used separate modes in which the user would either add text, edit existing text, or display the document. Įmacs development began during the 1970s at the MIT AI Lab, whose PDP-6 and PDP-10 computers used the Incompatible Timesharing System (ITS) operating system that featured a default line editor known as Tape Editor and Corrector (TECO). Įmacs' interface was influenced by the design of the space-cadet keyboard, which enabled users to type as many different kinds of input as possible.
#Aquamacs auctex free
Emacs is among the oldest free and open source projects still under development. XEmacs development is inactive.Įmacs is, along with vi, one of the two main contenders in the traditional editor wars of Unix culture. GNU Emacs and XEmacs use similar Lisp dialects and are, for the most part, compatible with each other. XEmacs is a variant that branched from GNU Emacs in 1991. The most popular, and most ported, version of Emacs is GNU Emacs, which was created by Richard Stallman for the GNU Project. It was inspired by the ideas of the TECO-macro editors TECMAC and TMACS. as a set of Editor MACroS for the TECO editor. The original EMACS was written in 1976 by David A. Extensions have been written to, among other things, manage files, remote access, e-mail, outlines, multimedia, git integration, and RSS feeds, as well as implementations of ELIZA, Pong, Conway's Life, Snake, Dunnet, and Tetris. Implementations of Emacs typically feature a dialect of the Lisp programming language that provides a deep extension capability, allowing users and developers to write new commands and applications for the editor. Įmacs has over 10,000 built-in commands and its user interface allows the user to combine these commands into macros to automate work. Development of the first Emacs began in the mid-1970s, and work on its direct descendant, GNU Emacs, continues actively as of 2022.
#Aquamacs auctex manual
The manual for the most widely used variant, GNU Emacs, describes it as "the extensible, customizable, self-documenting, real-time display editor".
#Aquamacs auctex software
Various free/libre software developers, including volunteers and commercial developersĮmacs / ˈ iː m æ k s/ or EMACS ( Editor MACroS) is a family of text editors that are characterized by their extensibility. Org-mode, Magit, and Dired buffers in GNU Emacs