From 754bbf7a25a8dda49b5d08ef0d0443bbf5af0e36 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Sun, 7 Apr 2024 13:41:34 -0500 Subject: new repository --- devdocs/elisp/visiting-files.html | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 devdocs/elisp/visiting-files.html (limited to 'devdocs/elisp/visiting-files.html') diff --git a/devdocs/elisp/visiting-files.html b/devdocs/elisp/visiting-files.html new file mode 100644 index 00000000..59415c5d --- /dev/null +++ b/devdocs/elisp/visiting-files.html @@ -0,0 +1,16 @@ +

Visiting Files

Visiting a file means reading a file into a buffer. Once this is done, we say that the buffer is visiting that file, and call the file the visited file of the buffer.

A file and a buffer are two different things. A file is information recorded permanently in the computer (unless you delete it). A buffer, on the other hand, is information inside of Emacs that will vanish at the end of the editing session (or when you kill the buffer). When a buffer is visiting a file, it contains information copied from the file. The copy in the buffer is what you modify with editing commands. Changes to the buffer do not change the file; to make the changes permanent, you must save the buffer, which means copying the altered buffer contents back into the file.

Despite the distinction between files and buffers, people often refer to a file when they mean a buffer and vice-versa. Indeed, we say, “I am editing a file”, rather than, “I am editing a buffer that I will soon save as a file of the same name”. Humans do not usually need to make the distinction explicit. When dealing with a computer program, however, it is good to keep the distinction in mind.

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• Visiting Functions + The usual interface functions for visiting.
• Subroutines of Visiting + Lower-level subroutines that they use.
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+ Copyright © 1990-1996, 1998-2022 Free Software Foundation, Inc.
Licensed under the GNU GPL license.
+ https://www.gnu.org/software/emacs/manual/html_node/elisp/Visiting-Files.html +

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