Emacs, for example, can be extended far beyond editing text files.įeatures that are available in most text editors include find and replace, cut, copy and paste, undo, and redo. Some text editors are programmable, allowing the user to automate repetitive tasks, add new functions, or even implement a new application within the framework of the editor.

Some text editors can edit very large files, such as an entire database placed in a single file, while simpler editors may be restricted to the files that can be loaded into the computer's main memory. Many text editors are simple and small, offering little in the way of features, while others are rich in features. Sometimes known as notepad applications, text editors are usually included with operating system installations, but several third-party editors are also available. This is because word processors are designed to produce WYSIWYG documents, so formatting effects are achieved directly in the document rather than through the use of plain-text markup.Ī text editor is a computer program that edits plain text.

Word processing programs, such as Microsoft Word or Corel WordPerfect, are not well suited for programming because they automatically insert their own code into the document, which would have to be stripped out. In plain text, letters or words are not emphasized, boldfaced, or italicized, and the font size and typeface doesn't matter only the text matters. Plain text implies that the text itself doesn't have any formatting or at least none that matters. Unlike word processor programs and most other software used to produce written documents, text editors are specifically designed for editing plain text, which may be used for note-taking, but they are also used for programming code, markup, configuration files, and other purposes. The focus of this category is on text editors and source code editors, which are sometimes the same thing.

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