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Emacs (/ ˈ iː m æ k s / ⓘ), originally named EMACS (an acronym for "Editor Macros"), [1] [2] [3] is a family of text editors that are characterized by their extensibility. [4] The manual for the most widely used variant, [5] GNU Emacs, describes it as "the extensible, customizable, self-documenting, real-time display editor". [6]
New GPG key for GNU Emacs Lisp Package Archive (ELPA) package signature checking. 26.2 April 12, 2019 Emacs modules can now be built outside of the Emacs tree source. Compliance with Unicode version 11.0. 26.1 May 28, 2018 Limited form of concurrency with Lisp threads. Support for optional display of line numbers in the buffer.
GNU Emacs comes with two ctags utilities, etags and ctags, which are compiled from the same source code. Etags generates a tag table file for Emacs, while the ctags command is used to create a similar table in a format understood by vi. They have different sets of command line options: etags does not recognize and ignores options which only ...
In Emacs, the editing area can be split into separate areas called windows, each displaying a different buffer. A buffer is a region of text loaded into Emacs' memory (possibly from a file) which can be saved into a text document. Users can press the default C-x 2 key binding to open a new window. This runs the Emacs Lisp function split-window ...
Symmetric-key algorithms use a single shared key; keeping data secret requires keeping this key secret. Public-key algorithms use a public key and a private key. The public key is made available to anyone (often by means of a digital certificate). A sender encrypts data with the receiver's public key; only the holder of the private key can ...
Emacs Speaks Statistics (ESS) is an Emacs package for programming in statistical languages. It adds two types of modes to emacs: ESS modes for editing statistical languages like R, SAS and Julia; and; inferior ESS (iESS) modes for interacting with statistical processes like R and SAS. Modes of types (1) and (2) work seamlessly together.
This sequence is used as an encryption key at one end of communication, and as a decryption key at the other. One can implement a key generator in a system that aims to generate, distribute, and authenticate [4] keys in a way that without the private key, one cannot access the information in the public end. [5]
To combat storage inefficiency and store variable sized data with minimal wasted space, each page is composed of cells of a variable size that are packed tightly together; the column store architecture supports a variable number of cells per page and various page formats within a column. SAP IQ also applies Lempel-Ziv-Welch ( LZW ) compression ...