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author | Juri Linkov <juri@jurta.org> | 2013-06-18 23:38:43 +0300 |
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committer | Juri Linkov <juri@jurta.org> | 2013-06-18 23:38:43 +0300 |
commit | 292c880c7e219e5740726f8a28a77921b12d5965 (patch) | |
tree | 3a50c56dc6e12692f3f918d8e172f3956afe2629 /lisp/files-x.el | |
parent | 0950aa27a260158ab01e434281d7ea0ee9f8d023 (diff) | |
download | emacs-292c880c7e219e5740726f8a28a77921b12d5965.tar.gz |
* lisp/files-x.el (modify-file-local-variable-message): New function.
(modify-file-local-variable)
(modify-file-local-variable-prop-line): Add arg INTERACTIVE
and call `modify-file-local-variable-message' when it's non-nil.
(add-file-local-variable, delete-file-local-variable)
(add-file-local-variable-prop-line)
(delete-file-local-variable-prop-line): Add arg INTERACTIVE and use it.
Fixes: debbugs:9820
Diffstat (limited to 'lisp/files-x.el')
-rw-r--r-- | lisp/files-x.el | 75 |
1 files changed, 57 insertions, 18 deletions
diff --git a/lisp/files-x.el b/lisp/files-x.el index 2ae1a0e4045..6864e9a7b14 100644 --- a/lisp/files-x.el +++ b/lisp/files-x.el @@ -115,7 +115,38 @@ Intended to be used in the `interactive' spec of ((and (stringp mode) (fboundp (intern mode))) (intern mode)) (t mode)))) -(defun modify-file-local-variable (variable value op) +(defun modify-file-local-variable-message (variable value op) + (let* ((not-value (make-symbol "")) + (old-value (cond ((eq variable 'mode) + major-mode) + ((eq variable 'coding) + buffer-file-coding-system) + (t (if (and (symbolp variable) + (boundp variable)) + (symbol-value variable) + not-value)))) + (new-value (if (eq op 'delete) + (cond ((eq variable 'mode) + (default-value 'major-mode)) + ((eq variable 'coding) + (default-value 'buffer-file-coding-system)) + (t (if (and (symbolp variable) + (default-boundp variable)) + (default-value variable) + not-value))) + (cond ((eq variable 'mode) + (let ((string (format "%S" value))) + (if (string-match-p "-mode\\'" string) + value + (intern (concat string "-mode"))))) + (t value))))) + (when (or (eq old-value not-value) + (eq new-value not-value) + (not (equal old-value new-value))) + (message "%s" (substitute-command-keys + "For this change to take effect revisit file using \\[revert-buffer]"))))) + +(defun modify-file-local-variable (variable value op &optional interactive) "Modify file-local VARIABLE in Local Variables depending on operation OP. If OP is `add-or-replace' then delete all existing settings of @@ -198,10 +229,13 @@ from the Local Variables list ignoring the input argument VALUE." ((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))))))) + (insert (format "%s%S: %S%s\n" prefix variable value suffix)))) + + (when interactive + (modify-file-local-variable-message variable value op))))) ;;;###autoload -(defun add-file-local-variable (variable value) +(defun add-file-local-variable (variable value &optional interactive) "Add file-local VARIABLE with its VALUE to the Local Variables list. This command deletes all existing settings of VARIABLE (except `mode' @@ -213,17 +247,17 @@ 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)) + (list variable (read-file-local-variable-value variable) t))) + (modify-file-local-variable variable value 'add-or-replace interactive)) ;;;###autoload -(defun delete-file-local-variable (variable) +(defun delete-file-local-variable (variable &optional interactive) "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)) + (list (read-file-local-variable "Delete file-local variable") t)) + (modify-file-local-variable variable nil 'delete interactive)) -(defun modify-file-local-variable-prop-line (variable value op) +(defun modify-file-local-variable-prop-line (variable value op &optional interactive) "Modify file-local VARIABLE in the -*- line depending on operation OP. If OP is `add-or-replace' then delete all existing settings of @@ -261,11 +295,11 @@ from the -*- line ignoring the input argument VALUE." (looking-at "<\\?xml[^>\n]*>$")) (forward-line 1)) - (comment-normalize-vars) (let ((comment-style 'plain) (comment-start (or comment-start ";;; ")) (line-beg (line-beginning-position)) (ce nil)) + (comment-normalize-vars) ;; If the first line contains a comment. (if (save-excursion (and (looking-at comment-start-skip) @@ -337,14 +371,19 @@ from the -*- line ignoring the input argument VALUE." ((null replaced-pos) (goto-char end)) (replaced-pos (goto-char replaced-pos))) (if (and (not (eq (char-before) ?\;)) - (not (equal (point) (marker-position beg)))) + (not (equal (point) (marker-position beg))) + ;; When existing `-*- -*-' is empty, beg > end. + (not (> (marker-position beg) (marker-position end)))) (insert ";")) (unless (eq (char-before) ?\s) (insert " ")) (insert (format "%S: %S;" variable value)) - (unless (eq (char-after) ?\s) (insert " ")))))))) + (unless (eq (char-after) ?\s) (insert " "))))) + + (when interactive + (modify-file-local-variable-message variable value op))))) ;;;###autoload -(defun add-file-local-variable-prop-line (variable value) +(defun add-file-local-variable-prop-line (variable value &optional interactive) "Add file-local VARIABLE with its VALUE to the -*- line. This command deletes all existing settings of VARIABLE (except `mode' @@ -355,15 +394,15 @@ 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)) + (list variable (read-file-local-variable-value variable) t))) + (modify-file-local-variable-prop-line variable value 'add-or-replace interactive)) ;;;###autoload -(defun delete-file-local-variable-prop-line (variable) +(defun delete-file-local-variable-prop-line (variable &optional interactive) "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)) + (list (read-file-local-variable "Delete -*- file-local variable") t)) + (modify-file-local-variable-prop-line variable nil 'delete interactive)) (defvar auto-insert) ; from autoinsert.el |