Variable: magic-mode-alist

magic-mode-alist is a variable defined in files.el.gz.

Value

nil

Documentation

Alist of buffer beginnings vs. corresponding major mode functions.

Each element looks like (REGEXP . FUNCTION) or (MATCH-FUNCTION . FUNCTION). After visiting a file, if REGEXP matches the text at the beginning of the buffer (case-sensitively), or calling MATCH-FUNCTION returns non-nil, normal-mode will call FUNCTION rather than allowing auto-mode-alist to decide the buffer's major mode.

If FUNCTION is nil, then it is not called. (That is a way of saying
"allow `auto-mode-alist' to decide for these files.")

View in manual

Probably introduced at or before Emacs version 22.1.

Source Code

;; Defined in /usr/src/emacs/lisp/files.el.gz
(defvar magic-mode-alist nil
  "Alist of buffer beginnings vs. corresponding major mode functions.
Each element looks like (REGEXP . FUNCTION) or (MATCH-FUNCTION . FUNCTION).
After visiting a file, if REGEXP matches the text at the beginning of the
buffer (case-sensitively), or calling MATCH-FUNCTION returns non-nil,
`normal-mode' will call FUNCTION rather than allowing `auto-mode-alist' to
decide the buffer's major mode.

If FUNCTION is nil, then it is not called.  (That is a way of saying
\"allow `auto-mode-alist' to decide for these files.\")")