2009-08-12 20:29:30 +00:00
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;;; files-x.el --- extended file handling commands
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;; Copyright (C) 2009 Free Software Foundation, Inc.
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;; Author: Juri Linkov <juri@jurta.org>
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;; Maintainer: FSF
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;; Keywords: files
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; This file defines additional infrequently used file- and
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;; directory-handling commands that should not be in files.el
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;; to not make the dumped image bigger.
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;;; Code:
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;;; Commands to add/delete file-local/directory-local variables.
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(defun read-file-local-variable (prompt)
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"Read file-local variable using PROMPT and completion.
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Intended to be used in the `interactive' spec of
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`add-file-local-variable', `delete-file-local-variable',
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`add-dir-local-variable', `delete-dir-local-variable'."
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(let (default variable)
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(setq default (variable-at-point))
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(setq default (and (symbolp default) (boundp default)
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(symbol-name default)))
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(setq variable
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(completing-read
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(if default
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(format "%s (default %s): " prompt default)
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(format "%s: " prompt))
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obarray
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(lambda (sym)
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(or (user-variable-p sym)
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2009-10-07 14:33:31 +00:00
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(get sym 'safe-local-variable)
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2009-08-12 20:29:30 +00:00
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(memq sym '(mode eval coding unibyte))))
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nil nil nil default nil))
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(and (stringp variable) (intern variable))))
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(defun read-file-local-variable-value (variable)
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"Read value of file-local VARIABLE using completion.
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Intended to be used in the `interactive' spec of
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`add-file-local-variable' and `add-dir-local-variable'."
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(let (default value)
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(cond
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((eq variable 'mode)
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(setq default (and (symbolp major-mode) (symbol-name major-mode)))
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(setq value
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(completing-read
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(if default
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(format "Add %s with value (default %s): " variable default)
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(format "Add %s with value: " variable))
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obarray
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(lambda (sym)
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2009-10-13 22:35:44 +00:00
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(string-match-p "-mode\\'" (symbol-name sym)))
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2009-08-12 20:29:30 +00:00
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nil nil nil default nil))
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(and (stringp value)
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(intern (replace-regexp-in-string "-mode\\'" "" value))))
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((eq variable 'eval)
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(let ((minibuffer-completing-symbol t))
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(read-from-minibuffer (format "Add %s with expression: " variable)
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nil read-expression-map t
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'read-expression-history)))
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((eq variable 'coding)
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(setq default (and (symbolp buffer-file-coding-system)
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(symbol-name buffer-file-coding-system)))
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(read-coding-system
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(if default
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(format "Add %s with value (default %s): " variable default)
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(format "Add %s with value: " variable))
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default))
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(t
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(read (read-string (format "Add %s with value: " variable)
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nil 'set-variable-value-history
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(format "%S"
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(cond ((eq variable 'unibyte) t)
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2009-10-11 23:53:22 +00:00
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((boundp variable)
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(symbol-value variable))))))))))
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2009-08-12 20:29:30 +00:00
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(defun read-file-local-variable-mode ()
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"Read per-directory file-local variable's mode using completion.
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Intended to be used in the `interactive' spec of
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`add-dir-local-variable', `delete-dir-local-variable'."
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(let* ((default (and (symbolp major-mode) (symbol-name major-mode)))
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(mode
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(completing-read
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(if default
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(format "Mode or subdirectory (default %s): " default)
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(format "Mode or subdirectory: "))
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obarray
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(lambda (sym)
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(and (string-match-p "-mode\\'" (symbol-name sym))
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(not (string-match-p "-minor-mode\\'" (symbol-name sym)))))
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nil nil nil default nil)))
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(cond
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((equal mode "nil") nil)
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((and (stringp mode) (fboundp (intern mode))) (intern mode))
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(t mode))))
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(defun modify-file-local-variable (variable value op)
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"Modify file-local VARIABLE in Local Variables depending on operation OP.
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If OP is `add-or-replace' then delete all existing settings of
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VARIABLE (except `mode' and `eval') and add a new file-local VARIABLE
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with VALUE to the Local Variables list.
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If there is no Local Variables list in the current file buffer and OP
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is not `delete' then this function adds the first line containing the
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string `Local Variables:' and the last line containing the string `End:'.
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If OP is `delete' then delete all existing settings of VARIABLE
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from the Local Variables list ignoring the input argument VALUE."
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(catch 'exit
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(let ((beg (point)) end replaced-pos)
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(unless enable-local-variables
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(throw 'exit (message "File-local variables are disabled")))
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;; Look for "Local variables:" line in last page.
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(widen)
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(goto-char (point-max))
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(search-backward "\n\^L" (max (- (point-max) 3000) (point-min)) 'move)
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;; Add "Local variables:" list if not found.
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(unless (let ((case-fold-search t))
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(search-forward "Local Variables:" nil t))
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;; Don't add "Local variables:" list for the deletion operation.
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(when (eq op 'delete)
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(throw 'exit (progn (goto-char beg)
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(message "Local Variables not found"))))
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(goto-char (point-max))
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(let ((comment-style 'plain)
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(comment-start (or comment-start ";;; ")))
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(comment-region
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(prog1 (setq beg (point))
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(insert "\nLocal Variables:\nEnd:\n"))
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(point)))
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(unless (let ((case-fold-search t))
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(goto-char beg)
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(search-forward "Local Variables:" nil t))
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(throw 'exit (message "Can't add file-local variables"))))
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;; prefix is what comes before "local variables:" in its line.
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;; suffix is what comes after "local variables:" in its line.
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(let* ((prefix (buffer-substring (line-beginning-position)
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(match-beginning 0)))
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(suffix (buffer-substring (point) (line-end-position)))
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(prefix-re (concat "^" (regexp-quote prefix)))
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(suffix-re (concat (regexp-quote suffix) "$")))
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;; Find or add missing "End:".
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(forward-line 1)
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(setq beg (point))
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(save-excursion
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(unless (let ((case-fold-search t))
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(re-search-forward
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(concat prefix-re "[ \t]*End:[ \t]*" suffix-re)
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nil t))
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(save-excursion
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(insert (format "%sEnd:%s\n" prefix suffix))))
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(beginning-of-line)
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(setq end (point-marker)))
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;; Find and delete all existing variable/value pairs.
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(when (member op '(add-or-replace delete))
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(if (and (eq op 'add-or-replace) (memq variable '(mode eval)))
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(goto-char end)
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(goto-char beg)
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(while (re-search-forward
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(format "%s%S:.*%s" prefix-re variable suffix-re) end t)
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(delete-region (match-beginning 0) (1+ (match-end 0)))
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(setq replaced-pos (point)))))
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;; Add a new variable/value pair. Add `mode' to the start, add new
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;; variable to the end, and add a replaced variable to its last location.
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(when (eq op 'add-or-replace)
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(cond
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((eq variable 'mode) (goto-char beg))
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((null replaced-pos) (goto-char end))
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(replaced-pos (goto-char replaced-pos)))
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(insert (format "%s%S: %S%s\n" prefix variable value suffix)))))))
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;;;###autoload
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(defun add-file-local-variable (variable value)
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"Add file-local VARIABLE with its VALUE to the Local Variables list.
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This command deletes all existing settings of VARIABLE (except `mode'
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and `eval') and adds a new file-local VARIABLE with VALUE to the
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Local Variables list.
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If there is no Local Variables list in the current file buffer
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then this function adds the first line containing the string
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`Local Variables:' and the last line containing the string `End:'."
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(interactive
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(let ((variable (read-file-local-variable "Add file-local variable")))
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(list variable (read-file-local-variable-value variable))))
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(modify-file-local-variable variable value 'add-or-replace))
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;;;###autoload
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(defun delete-file-local-variable (variable)
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"Delete all settings of file-local VARIABLE from the Local Variables list."
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(interactive
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(list (read-file-local-variable "Delete file-local variable")))
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(modify-file-local-variable variable nil 'delete))
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(defun modify-file-local-variable-prop-line (variable value op)
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"Modify file-local VARIABLE in the -*- line depending on operation OP.
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If OP is `add-or-replace' then delete all existing settings of
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VARIABLE (except `mode' and `eval') and add a new file-local VARIABLE
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with VALUE to the -*- line.
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If there is no -*- line at the beginning of the current file buffer
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and OP is not `delete' then this function adds the -*- line.
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If OP is `delete' then delete all existing settings of VARIABLE
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from the -*- line ignoring the input argument VALUE."
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(catch 'exit
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(let ((beg (point)) end replaced-pos)
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(unless enable-local-variables
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(throw 'exit (message "File-local variables are disabled")))
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;; Find the -*- line at the beginning of the current buffer.
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(widen)
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(goto-char (point-min))
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(setq end (set-auto-mode-1))
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(if end
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(setq beg (point-marker) end (copy-marker end))
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;; Add the -*- line if not found.
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;; Don't add the -*- line for the deletion operation.
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(when (eq op 'delete)
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(throw 'exit (progn (goto-char beg)
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(message "The -*- line not found"))))
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(goto-char (point-min))
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;; Skip interpreter magic line "#!"
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(when (looking-at "^\\(#!\\|'\\\\\"\\)")
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(forward-line 1))
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(let ((comment-style 'plain)
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(comment-start (or comment-start ";;; ")))
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(comment-region
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(prog1 (point)
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(insert "-*-")
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(setq beg (point-marker))
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(setq end (point-marker))
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(insert "-*-\n"))
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(point))))
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(cond
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((looking-at "[ \t]*\\([^ \t\n\r:;]+\\)\\([ \t]*-\\*-\\)")
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;; Simple form: "-*- MODENAME -*-".
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(if (eq variable 'mode)
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;; Replace or delete MODENAME
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(progn
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(when (member op '(add-or-replace delete))
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(delete-region (match-beginning 1) (match-end 1)))
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(when (eq op 'add-or-replace)
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(goto-char (match-beginning 1))
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(insert (format "%S" value))))
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;; Else, turn `MODENAME' into `mode:MODENAME'
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;; and add `VARIABLE: VALUE;'
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(goto-char (match-beginning 2))
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(insert (format "; %S: %S; " variable value))
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(goto-char (match-beginning 1))
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(insert " mode: ")))
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(t
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;; Hairy form: '-*-' [ <variable> ':' <value> ';' ]* '-*-'
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;; Find and delete all existing variable/value pairs.
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(when (member op '(add-or-replace delete))
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(if (and (eq op 'add-or-replace) (memq variable '(mode eval)))
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(goto-char end)
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(goto-char beg)
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(while (< (point) end)
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(or (looking-at "[ \t]*\\([^ \t\n:]+\\)[ \t]*:[ \t]*")
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(throw 'exit (message "Malformed -*- line")))
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(goto-char (match-end 0))
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(let ((key (intern (match-string 1)))
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(val (save-restriction
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(narrow-to-region (point) end)
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(let ((read-circle nil))
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(read (current-buffer))))))
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(skip-chars-forward " \t;")
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(when (eq key variable)
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(delete-region (match-beginning 0) (point))
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(setq replaced-pos (point)))))))
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;; Add a new variable/value pair. Add `mode' to the start, add new
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;; variable to the end, and add a replaced variable to its last location.
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(when (eq op 'add-or-replace)
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(cond
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((eq variable 'mode) (goto-char beg))
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((null replaced-pos) (goto-char end))
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(replaced-pos (goto-char replaced-pos)))
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(if (and (not (eq (char-before) ?\;))
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(not (equal (point) (marker-position beg))))
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(insert ";"))
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(unless (eq (char-before) ?\s) (insert " "))
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(insert (format "%S: %S;" variable value))
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(unless (eq (char-after) ?\s) (insert " "))))))))
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;;;###autoload
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(defun add-file-local-variable-prop-line (variable value)
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"Add file-local VARIABLE with its VALUE to the -*- line.
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|
This command deletes all existing settings of VARIABLE (except `mode'
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|
and `eval') and adds a new file-local VARIABLE with VALUE to
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|
the -*- line.
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|
If there is no -*- line at the beginning of the current file buffer
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|
then this function adds it."
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(interactive
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(let ((variable (read-file-local-variable "Add -*- file-local variable")))
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|
(list variable (read-file-local-variable-value variable))))
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(modify-file-local-variable-prop-line variable value 'add-or-replace))
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;;;###autoload
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(defun delete-file-local-variable-prop-line (variable)
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|
"Delete all settings of file-local VARIABLE from the -*- line."
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|
|
(interactive
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|
(list (read-file-local-variable "Delete -*- file-local variable")))
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|
|
(modify-file-local-variable-prop-line variable nil 'delete))
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|
|
(defun modify-dir-local-variable (mode variable value op)
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|
|
"Modify directory-local VARIABLE in .dir-locals.el depending on operation OP.
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|
|
If OP is `add-or-replace' then delete all existing settings of
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|
|
VARIABLE (except `mode' and `eval') and add a new directory-local VARIABLE
|
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|
|
with VALUE to the MODE alist where MODE can be a mode name symbol or
|
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|
|
a subdirectory name.
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|
|
If .dir-locals.el was not found and OP is not `delete' then create
|
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|
|
this file in the current directory.
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|
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|
|
If OP is `delete' then delete all existing settings of VARIABLE
|
2009-10-04 01:44:39 +00:00
|
|
|
|
from the MODE alist ignoring the input argument VALUE."
|
2009-08-12 20:29:30 +00:00
|
|
|
|
(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)))))
|
|
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
|
(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))
|
|
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
|
(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))
|
|
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
|
(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)))))
|
|
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
|
(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))))
|
|
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
|
(defun copy-dir-locals-to-file-locals-prop-line ()
|
2009-10-04 01:44:39 +00:00
|
|
|
|
"Copy directory-local variables to the -*- line."
|
2009-08-12 20:29:30 +00:00
|
|
|
|
(interactive)
|
|
|
|
|
(dolist (elt dir-local-variables-alist)
|
|
|
|
|
(add-file-local-variable-prop-line (car elt) (cdr elt))))
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
(provide 'files-x)
|
2009-08-14 04:47:38 +00:00
|
|
|
|
|
|
|
|
|
;; arch-tag: 949d263c-30a8-4b49-af26-cda97c7c5477
|
2009-08-12 20:29:30 +00:00
|
|
|
|
;;; files-x.el ends here
|