(push elt dir-local-variables-alist))
(hack-local-variables-filter variables dir-name)))))))
-\f
-;;; Commands to add/delete file-local/directory-local variables.
-
-(defun read-file-local-variable (prompt)
- "Read file-local variable using PROMPT and completion.
-Intended to be used in the `interactive' spec of
-`add-file-local-variable', `delete-file-local-variable',
-`add-dir-local-variable', `delete-dir-local-variable'."
- (let (default variable)
- (setq default (variable-at-point))
- (setq default (and (symbolp default) (boundp default)
- (symbol-name default)))
- (setq variable
- (completing-read
- (if default
- (format "%s (default %s): " prompt default)
- (format "%s: " prompt))
- obarray
- (lambda (sym)
- (or (user-variable-p sym)
- (memq sym '(mode eval coding unibyte))))
- nil nil nil default nil))
- (and (stringp variable) (intern variable))))
-
-(defun read-file-local-variable-value (variable)
- "Read value of file-local VARIABLE using completion.
-Intended to be used in the `interactive' spec of
-`add-file-local-variable' and `add-dir-local-variable'."
- (let (default value)
- (cond
- ((eq variable 'mode)
- (setq default (and (symbolp major-mode) (symbol-name major-mode)))
- (setq value
- (completing-read
- (if default
- (format "Add %s with value (default %s): " variable default)
- (format "Add %s with value: " variable))
- obarray
- (lambda (sym)
- (and (string-match-p "-mode\\'" (symbol-name sym))
- (not (string-match-p "-minor-mode\\'" (symbol-name sym)))))
- nil nil nil default nil))
- (and (stringp value)
- (intern (replace-regexp-in-string "-mode\\'" "" value))))
- ((eq variable 'eval)
- (let ((minibuffer-completing-symbol t))
- (read-from-minibuffer (format "Add %s with expression: " variable)
- nil read-expression-map t
- 'read-expression-history)))
- ((eq variable 'coding)
- (setq default (and (symbolp buffer-file-coding-system)
- (symbol-name buffer-file-coding-system)))
- (read-coding-system
- (if default
- (format "Add %s with value (default %s): " variable default)
- (format "Add %s with value: " variable))
- default))
- (t
- (read (read-string (format "Add %s with value: " variable)
- nil 'set-variable-value-history
- (format "%S" (symbol-value variable))))))))
-
-(defun read-file-local-variable-mode ()
- "Read per-directory file-local variable's mode using completion.
-Intended to be used in the `interactive' spec of
-`add-dir-local-variable', `delete-dir-local-variable'."
- (let* ((default (and (symbolp major-mode) (symbol-name major-mode)))
- (mode
- (completing-read
- (if default
- (format "Mode or subdirectory (default %s): " default)
- (format "Mode or subdirectory: "))
- obarray
- (lambda (sym)
- (and (string-match-p "-mode\\'" (symbol-name sym))
- (not (string-match-p "-minor-mode\\'" (symbol-name sym)))))
- nil nil nil default nil)))
- (cond
- ((equal mode "nil") nil)
- ((and (stringp mode) (fboundp (intern mode))) (intern mode))
- (t mode))))
-
-(defun modify-file-local-variable (variable value op)
- "Modify file-local VARIABLE in Local Variables depending on operation OP.
-
-If OP is `add-or-replace' then delete all existing settings of
-VARIABLE (except `mode' and `eval') and add a new file-local VARIABLE
-with VALUE to the Local Variables list.
-
-If there is no Local Variables list in the current file buffer and OP
-is not `delete' then this function adds the first line containing the
-string `Local Variables:' and the last line containing the string `End:'.
-
-If OP is `delete' then delete all existing settings of VARIABLE
-from the Local Variables list ignoring the input argument VALUE."
- (catch 'exit
- (let ((beg (point)) end replaced-pos)
- (unless enable-local-variables
- (throw 'exit (message "File-local variables are disabled")))
-
- ;; Look for "Local variables:" line in last page.
- (widen)
- (goto-char (point-max))
- (search-backward "\n\^L" (max (- (point-max) 3000) (point-min)) 'move)
-
- ;; Add "Local variables:" list if not found.
- (unless (let ((case-fold-search t))
- (search-forward "Local Variables:" nil t))
-
- ;; Don't add "Local variables:" list for the deletion operation.
- (when (eq op 'delete)
- (throw 'exit (progn (goto-char beg)
- (message "Local Variables not found"))))
-
- (goto-char (point-max))
- (let ((comment-style 'plain)
- (comment-start (or comment-start ";;; ")))
- (comment-region
- (prog1 (setq beg (point))
- (insert "\nLocal Variables:\nEnd:\n"))
- (point)))
-
- (unless (let ((case-fold-search t))
- (goto-char beg)
- (search-forward "Local Variables:" nil t))
- (throw 'exit (message "Can't add file-local variables"))))
-
- ;; prefix is what comes before "local variables:" in its line.
- ;; suffix is what comes after "local variables:" in its line.
- (let* ((prefix (buffer-substring (line-beginning-position)
- (match-beginning 0)))
- (suffix (buffer-substring (point) (line-end-position)))
- (prefix-re (concat "^" (regexp-quote prefix)))
- (suffix-re (concat (regexp-quote suffix) "$")))
-
- ;; Find or add missing "End:".
- (forward-line 1)
- (setq beg (point))
- (save-excursion
- (unless (let ((case-fold-search t))
- (re-search-forward
- (concat prefix-re "[ \t]*End:[ \t]*" suffix-re)
- nil t))
- (save-excursion
- (insert (format "%sEnd:%s\n" prefix suffix))))
- (beginning-of-line)
- (setq end (point-marker)))
-
- ;; Find and delete all existing variable/value pairs.
- (when (member op '(add-or-replace delete))
- (if (and (eq op 'add-or-replace) (memq variable '(mode eval)))
- (goto-char end)
- (goto-char beg)
- (while (re-search-forward
- (format "%s%S:.*%s" prefix-re variable suffix-re) end t)
- (delete-region (match-beginning 0) (1+ (match-end 0)))
- (setq replaced-pos (point)))))
-
- ;; Add a new variable/value pair. Add `mode' to the start, add new
- ;; variable to the end, and add a replaced variable to its last location.
- (when (eq op 'add-or-replace)
- (cond
- ((eq variable 'mode) (goto-char beg))
- ((null replaced-pos) (goto-char end))
- (replaced-pos (goto-char replaced-pos)))
- (insert (format "%s%S: %S%s\n" prefix variable value suffix)))))))
-
-(defun add-file-local-variable (variable value)
- "Add file-local VARIABLE with its VALUE to the Local Variables list.
-
-This command deletes all existing settings of VARIABLE (except `mode'
-and `eval') and adds a new file-local VARIABLE with VALUE to the
-Local Variables list.
-
-If there is no Local Variables list in the current file buffer
-then this function adds the first line containing the string
-`Local Variables:' and the last line containing the string `End:'."
- (interactive
- (let ((variable (read-file-local-variable "Add file-local variable")))
- (list variable (read-file-local-variable-value variable))))
- (modify-file-local-variable variable value 'add-or-replace))
-
-(defun delete-file-local-variable (variable)
- "Delete all settings of file-local VARIABLE from the Local Variables list."
- (interactive
- (list (read-file-local-variable "Delete file-local variable")))
- (modify-file-local-variable variable nil 'delete))
-
-(defun modify-file-local-variable-prop-line (variable value op)
- "Modify file-local VARIABLE in the -*- line depending on operation OP.
-
-If OP is `add-or-replace' then delete all existing settings of
-VARIABLE (except `mode' and `eval') and add a new file-local VARIABLE
-with VALUE to the -*- line.
-
-If there is no -*- line at the beginning of the current file buffer
-and OP is not `delete' then this function adds the -*- line.
-
-If OP is `delete' then delete all existing settings of VARIABLE
-from the -*- line ignoring the input argument VALUE."
- (catch 'exit
- (let ((beg (point)) end replaced-pos)
- (unless enable-local-variables
- (throw 'exit (message "File-local variables are disabled")))
-
- ;; Find the -*- line at the beginning of the current buffer.
- (widen)
- (goto-char (point-min))
- (setq end (set-auto-mode-1))
-
- (if end
- (setq beg (point) end (copy-marker end))
-
- ;; Add the -*- line if not found.
- ;; Don't add the -*- line for the deletion operation.
- (when (eq op 'delete)
- (throw 'exit (progn (goto-char beg)
- (message "The -*- line not found"))))
-
- (goto-char (point-min))
-
- ;; Skip interpreter magic line "#!"
- (when (looking-at "^\\(#!\\|'\\\\\"\\)")
- (forward-line 1))
-
- (let ((comment-style 'plain)
- (comment-start (or comment-start ";;; ")))
- (comment-region
- (prog1 (point)
- (insert "-*-")
- (setq beg (point-marker))
- (setq end (point-marker))
- (insert "-*-\n"))
- (point))))
-
- (cond
- ((looking-at "[ \t]*\\([^ \t\n\r:;]+\\)\\([ \t]*-\\*-\\)")
- ;; Simple form: "-*- MODENAME -*-".
- (if (eq variable 'mode)
- ;; Replace or delete MODENAME
- (progn
- (when (member op '(add-or-replace delete))
- (delete-region (match-beginning 1) (match-end 1)))
- (when (eq op 'add-or-replace)
- (goto-char (match-beginning 1))
- (insert (format "%S" value))))
- ;; Else, turn `MODENAME' into `mode:MODENAME'
- ;; and add `;VARIABLE:VALUE'
- (goto-char (match-beginning 2))
- (insert (format "; %S: %S " variable value))
- (goto-char (match-beginning 1))
- (insert " mode: ")))
-
- (t
- ;; Hairy form: '-*-' [ <variable> ':' <value> ';' ]* '-*-'
- ;; Find and delete all existing variable/value pairs.
- (when (member op '(add-or-replace delete))
- (if (and (eq op 'add-or-replace) (memq variable '(mode eval)))
- (goto-char end)
- (goto-char beg)
- (while (< (point) end)
- (or (looking-at "[ \t]*\\([^ \t\n:]+\\)[ \t]*:[ \t]*")
- (throw 'exit (message "Malformed -*- line")))
- (goto-char (match-end 0))
- (let ((key (intern (match-string 1)))
- (val (save-restriction
- (narrow-to-region (point) end)
- (let ((read-circle nil))
- (read (current-buffer))))))
- (skip-chars-forward " \t;")
- (when (eq key variable)
- (delete-region (match-beginning 0) (point))
- (setq replaced-pos (point)))))))
- ;; Add a new variable/value pair. Add `mode' to the start, add new
- ;; variable to the end, and add a replaced variable to its last location.
- (when (eq op 'add-or-replace)
- (cond
- ((eq variable 'mode) (goto-char beg))
- ((null replaced-pos) (goto-char end) (insert "; "))
- (replaced-pos (goto-char replaced-pos)))
- (insert (format "%S: %S" variable value))
- (cond
- ((eq variable 'mode) (insert "; "))
- (replaced-pos (insert "; ") ))))))))
-
-(defun add-file-local-variable-prop-line (variable value)
- "Add file-local VARIABLE with its VALUE to the -*- line.
-
-This command deletes all existing settings of VARIABLE (except `mode'
-and `eval') and adds a new file-local VARIABLE with VALUE to
-the -*- line.
-
-If there is no -*- line at the beginning of the current file buffer
-then this function adds it."
- (interactive
- (let ((variable (read-file-local-variable "Add -*- file-local variable")))
- (list variable (read-file-local-variable-value variable))))
- (modify-file-local-variable-prop-line variable value 'add-or-replace))
-
-(defun delete-file-local-variable-prop-line (variable)
- "Delete all settings of file-local VARIABLE from the -*- line."
- (interactive
- (list (read-file-local-variable "Delete -*- file-local variable")))
- (modify-file-local-variable-prop-line variable nil 'delete))
-
-(defun modify-dir-local-variable (mode variable value op)
- "Modify directory-local VARIABLE in .dir-locals.el depending on operation OP.
-
-If OP is `add-or-replace' then delete all existing settings of
-VARIABLE (except `mode' and `eval') and add a new directory-local VARIABLE
-with VALUE to the MODE alist where MODE can be a mode name symbol or
-a subdirectory name.
-
-If .dir-locals.el was not found and OP is not `delete' then create
-this file in the current directory.
-
-If OP is `delete' then delete all existing settings of VARIABLE
-from the the MODE alist ignoring the input argument VALUE."
- (catch 'exit
- (unless enable-local-variables
- (throw 'exit (message "Directory-local variables are disabled")))
-
- (let ((variables-file (or (and (buffer-file-name)
- (not (file-remote-p (buffer-file-name)))
- (dir-locals-find-file (buffer-file-name)))
- dir-locals-file))
- variables)
-
- ;; Don't create ".dir-locals.el" for the deletion operation.
- (when (and (eq op 'delete)
- (not (file-exists-p variables-file)))
- (throw 'exit (message "File .dir-locals.el not found")))
-
- (let ((auto-insert nil))
- (find-file variables-file))
- (widen)
- (goto-char (point-min))
-
- ;; Read alist of directory-local variables.
- (ignore-errors
- (delete-region
- (prog1 (point)
- (setq variables (let ((read-circle nil))
- (read (current-buffer)))))
- (point)))
-
- ;; Add or replace variable in alist of directory-local variables.
- (let ((mode-assoc (assoc mode variables)))
- (if mode-assoc
- (setq variables
- (cons (cons mode
- (if (eq op 'delete)
- (assq-delete-all variable (cdr mode-assoc))
- (cons
- (cons variable value)
- (if (memq variable '(mode eval))
- (cdr mode-assoc)
- (assq-delete-all variable (cdr mode-assoc))))))
- (assq-delete-all mode variables)))
- (setq variables
- (cons `(,mode . ((,variable . ,value)))
- variables))))
-
- ;; Insert modified alist of directory-local variables.
- (insert ";;; Directory Local Variables\n")
- (insert ";;; See Info node `(emacs) Directory Variables' for more information.\n\n")
- (pp (sort variables
- (lambda (a b)
- (cond
- ((null (car a)) t)
- ((null (car b)) nil)
- ((and (symbolp (car a)) (stringp (car b))) t)
- ((and (symbolp (car b)) (stringp (car a))) nil)
- (t (string< (car a) (car b))))))
- (current-buffer)))))
-
-(defun add-dir-local-variable (mode variable value)
- "Add directory-local VARIABLE with its VALUE and MODE to .dir-locals.el."
- (interactive
- (let (variable)
- (list
- (read-file-local-variable-mode)
- (setq variable (read-file-local-variable "Add directory-local variable"))
- (read-file-local-variable-value variable))))
- (modify-dir-local-variable mode variable value 'add-or-replace))
-
-(defun delete-dir-local-variable (mode variable)
- "Delete all MODE settings of file-local VARIABLE from .dir-locals.el."
- (interactive
- (list
- (read-file-local-variable-mode)
- (read-file-local-variable "Delete directory-local variable")))
- (modify-dir-local-variable mode variable nil 'delete))
-
-(defun copy-file-locals-to-dir-locals ()
- "Copy file-local variables to .dir-locals.el."
- (interactive)
- (dolist (elt file-local-variables-alist)
- (unless (assq (car elt) dir-local-variables-alist)
- (add-dir-local-variable major-mode (car elt) (cdr elt)))))
-
-(defun copy-dir-locals-to-file-locals ()
- "Copy directory-local variables to the Local Variables list."
- (interactive)
- (dolist (elt dir-local-variables-alist)
- (add-file-local-variable (car elt) (cdr elt))))
-
-(defun copy-dir-locals-to-file-locals-prop-line ()
- "Copy directory-local variables to the the -*- line."
- (interactive)
- (dolist (elt dir-local-variables-alist)
- (add-file-local-variable-prop-line (car elt) (cdr elt))))
-
\f
(defcustom change-major-mode-with-file-name t
"Non-nil means \\[write-file] should set the major mode from the file name.
projects / emacs.git / commitdiff