;;; whitespace.el --- minor mode to visualize TAB, (HARD) SPACE, NEWLINE
-;; Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+;; Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
;; Free Software Foundation, Inc.
;; Author: Vinicius Jose Latorre <viniciusjl@ig.com.br>
;; Maintainer: Vinicius Jose Latorre <viniciusjl@ig.com.br>
;; Keywords: data, wp
-;; Version: 11.1
+;; Version: 12.0
;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published
-;; by the Free Software Foundation; either version 3, or (at your
-;; option) any later version.
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
-;; GNU Emacs is distributed in the hope that it will be useful, but
-;; WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-;; General Public License for more details.
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; characters over the default mechanism of `nobreak-char-display'
;; (which see) and `show-trailing-whitespace' (which see).
;;
+;; The trailing spaces are not highlighted while point is at end of line.
+;; Also the spaces at beginning of buffer are not highlighted while point is at
+;; beginning of buffer; and the spaces at end of buffer are not highlighted
+;; while point is at end of buffer.
+;;
;; There are two ways of using whitespace: local and global.
;;
;; * Local whitespace affects only the current buffer.
;;
;; There are also the following useful commands:
;;
+;; `whitespace-newline-mode'
+;; Toggle NEWLINE minor mode visualization ("nl" on modeline).
+;;
+;; `global-whitespace-newline-mode'
+;; Toggle NEWLINE global minor mode visualization ("NL" on modeline).
+;;
;; `whitespace-report'
;; Report some blank problems in buffer.
;;
;; turned on.
;;
;; `whitespace-action' Specify which action is taken when a
-;; buffer is visited, killed or written.
+;; buffer is visited or written.
;;
;;
;; Acknowledgements
;; ----------------
;;
+;; Thanks to David Reitter <david.reitter@gmail.com> for suggesting a
+;; `whitespace-newline' initialization with low contrast relative to
+;; the background color.
+;;
;; Thanks to Stephen Deasey <sdeasey@gmail.com> for the
;; `indent-tabs-mode' usage suggestion.
;;
;; Thanks to Eric Cooper <ecc@cmu.edu> for the suggestion to have hook
-;; actions when buffer is written or killed as the original whitespace
-;; package had.
+;; actions when buffer is written as the original whitespace package
+;; had.
;;
;; Thanks to nschum (EmacsWiki) for the idea about highlight "long"
;; lines tail. See EightyColumnRule (EmacsWiki).
;; "long" lines. See EightyColumnRule (EmacsWiki).
;;
;; Thanks to Yanghui Bian <yanghuibian@gmail.com> for indicating a new
-;; newline character mapping.
+;; NEWLINE character mapping.
;;
;; Thanks to Pete Forman <pete.forman@westgeo.com> for indicating
;; whitespace-mode.el on XEmacs.
'(tabs spaces trailing lines space-before-tab newline
indentation empty space-after-tab
space-mark tab-mark newline-mark)
- "*Specify which kind of blank is visualized.
+ "Specify which kind of blank is visualized.
It's a list containing some or all of the following values:
space-after-tab::tab 8 or more SPACEs after a TAB are
visualized via faces.
- space-after-tab::space TABs are visualized when occurs 8 or
- more SPACEs after a TAB via faces.
+ space-after-tab::space TABs are visualized when 8 or more
+ SPACEs occur after a TAB, via faces.
space-after-tab 8 or more SPACEs after a TAB are
visualized, if `indent-tabs-mode'
space-before-tab::tab SPACEs before TAB are visualized via
faces.
- space-before-tab::space TABs are visualized when occurs SPACEs
- before TAB via faces.
+ space-before-tab::space TABs are visualized when SPACEs occur
+ before TAB, via faces.
space-before-tab SPACEs before TAB are visualized, if
`indent-tabs-mode' (which see) is
(defcustom whitespace-space 'whitespace-space
- "*Symbol face used to visualize SPACE.
+ "Symbol face used to visualize SPACE.
Used when `whitespace-style' includes the value `spaces'."
:type 'face
(defcustom whitespace-hspace 'whitespace-hspace
- "*Symbol face used to visualize HARD SPACE.
+ "Symbol face used to visualize HARD SPACE.
Used when `whitespace-style' includes the value `spaces'."
:type 'face
(defcustom whitespace-tab 'whitespace-tab
- "*Symbol face used to visualize TAB.
+ "Symbol face used to visualize TAB.
Used when `whitespace-style' includes the value `tabs'."
:type 'face
(defcustom whitespace-newline 'whitespace-newline
- "*Symbol face used to visualize NEWLINE char mapping.
+ "Symbol face used to visualize NEWLINE char mapping.
See `whitespace-display-mappings'.
(defface whitespace-newline
'((((class color) (background dark))
- (:background "grey26" :foreground "aquamarine3" :bold t))
+ (:foreground "darkgray" :bold nil))
(((class color) (background light))
- (:background "linen" :foreground "aquamarine3" :bold t))
- (t (:bold t :underline t)))
+ (:foreground "lightgray" :bold nil))
+ (t (:underline t :bold nil)))
"Face used to visualize NEWLINE char mapping.
See `whitespace-display-mappings'."
(defcustom whitespace-trailing 'whitespace-trailing
- "*Symbol face used to visualize trailing blanks.
+ "Symbol face used to visualize trailing blanks.
Used when `whitespace-style' includes the value `trailing'."
:type 'face
(defcustom whitespace-line 'whitespace-line
- "*Symbol face used to visualize \"long\" lines.
+ "Symbol face used to visualize \"long\" lines.
See `whitespace-line-column'.
(defcustom whitespace-space-before-tab 'whitespace-space-before-tab
- "*Symbol face used to visualize SPACEs before TAB.
+ "Symbol face used to visualize SPACEs before TAB.
Used when `whitespace-style' includes the value `space-before-tab'."
:type 'face
(defcustom whitespace-indentation 'whitespace-indentation
- "*Symbol face used to visualize 8 or more SPACEs at beginning of line.
+ "Symbol face used to visualize 8 or more SPACEs at beginning of line.
Used when `whitespace-style' includes the value `indentation'."
:type 'face
(defcustom whitespace-empty 'whitespace-empty
- "*Symbol face used to visualize empty lines at beginning and/or end of buffer.
+ "Symbol face used to visualize empty lines at beginning and/or end of buffer.
Used when `whitespace-style' includes the value `empty'."
:type 'face
(defcustom whitespace-space-after-tab 'whitespace-space-after-tab
- "*Symbol face used to visualize 8 or more SPACEs after TAB.
+ "Symbol face used to visualize 8 or more SPACEs after TAB.
Used when `whitespace-style' includes the value `space-after-tab'."
:type 'face
(defcustom whitespace-hspace-regexp
"\\(\\(\xA0\\|\x8A0\\|\x920\\|\xE20\\|\xF20\\)+\\)"
- "*Specify HARD SPACE characters regexp.
+ "Specify HARD SPACE characters regexp.
If you're using `mule' package, there may be other characters besides:
(defcustom whitespace-space-regexp "\\( +\\)"
- "*Specify SPACE characters regexp.
+ "Specify SPACE characters regexp.
If you're using `mule' package, there may be other characters
besides \" \" that should be considered SPACE.
(defcustom whitespace-tab-regexp "\\(\t+\\)"
- "*Specify TAB characters regexp.
+ "Specify TAB characters regexp.
If you're using `mule' package, there may be other characters
besides \"\\t\" that should be considered TAB.
(defcustom whitespace-trailing-regexp
"\\(\\(\t\\| \\|\xA0\\|\x8A0\\|\x920\\|\xE20\\|\xF20\\)+\\)$"
- "*Specify trailing characters regexp.
+ "Specify trailing characters regexp.
If you're using `mule' package, there may be other characters besides:
(defcustom whitespace-space-before-tab-regexp "\\( +\\)\\(\t+\\)"
- "*Specify SPACEs before TAB regexp.
+ "Specify SPACEs before TAB regexp.
If you're using `mule' package, there may be other characters besides:
(defcustom whitespace-indentation-regexp
'("^\t*\\(\\( \\{%d\\}\\)+\\)[^\n\t]"
. "^ *\\(\t+\\)[^\n]")
- "*Specify regexp for 8 or more SPACEs at beginning of line.
+ "Specify regexp for 8 or more SPACEs at beginning of line.
It is a cons where the cons car is used for SPACEs visualization
and the cons cdr is used for TABs visualization.
(defcustom whitespace-empty-at-bob-regexp "\\`\\(\\([ \t]*\n\\)+\\)"
- "*Specify regexp for empty lines at beginning of buffer.
+ "Specify regexp for empty lines at beginning of buffer.
If you're using `mule' package, there may be other characters besides:
(defcustom whitespace-empty-at-eob-regexp "^\\([ \t\n]+\\)\\'"
- "*Specify regexp for empty lines at end of buffer.
+ "Specify regexp for empty lines at end of buffer.
If you're using `mule' package, there may be other characters besides:
(defcustom whitespace-space-after-tab-regexp
'("\t+\\(\\( \\{%d\\}\\)+\\)"
. "\\(\t+\\) +")
- "*Specify regexp for 8 or more SPACEs after TAB.
+ "Specify regexp for 8 or more SPACEs after TAB.
It is a cons where the cons car is used for SPACEs visualization
and the cons cdr is used for TABs visualization.
(defcustom whitespace-line-column 80
- "*Specify column beyond which the line is highlighted.
+ "Specify column beyond which the line is highlighted.
Used when `whitespace-style' includes `lines' or `lines-tail'."
:type '(integer :tag "Line Length")
;; Hacked from `visible-whitespace-mappings' in visws.el
(defcustom whitespace-display-mappings
'(
- (space-mark ?\ [?\xB7] [?.]) ; space - centered dot
- (space-mark ?\xA0 [?\xA4] [?_]) ; hard space - currency
+ (space-mark ?\ [?\u00B7] [?.]) ; space - centered dot
+ (space-mark ?\xA0 [?\u00A4] [?_]) ; hard space - currency
(space-mark ?\x8A0 [?\x8A4] [?_]) ; hard space - currency
(space-mark ?\x920 [?\x924] [?_]) ; hard space - currency
(space-mark ?\xE20 [?\xE24] [?_]) ; hard space - currency
;; NEWLINE is displayed using the face `whitespace-newline'
(newline-mark ?\n [?$ ?\n]) ; eol - dollar sign
;; (newline-mark ?\n [?\u21B5 ?\n] [?$ ?\n]) ; eol - downwards arrow
- ;; (newline-mark ?\n [?\xB6 ?\n] [?$ ?\n]) ; eol - pilcrow
+ ;; (newline-mark ?\n [?\u00B6 ?\n] [?$ ?\n]) ; eol - pilcrow
;; (newline-mark ?\n [?\x8AF ?\n] [?$ ?\n]) ; eol - overscore
;; (newline-mark ?\n [?\x8AC ?\n] [?$ ?\n]) ; eol - negation
;; (newline-mark ?\n [?\x8B0 ?\n] [?$ ?\n]) ; eol - grade
;; character ?\xBB at that column followed by a TAB which goes to
;; the next TAB column.
;; If this is a problem for you, please, comment the line below.
- (tab-mark ?\t [?\xBB ?\t] [?\\ ?\t]) ; tab - left quote mark
+ (tab-mark ?\t [?\u00BB ?\t] [?\\ ?\t]) ; tab - left quote mark
)
- "*Specify an alist of mappings for displaying characters.
+ "Specify an alist of mappings for displaying characters.
Each element has the following form:
(defcustom whitespace-global-modes t
- "*Modes for which global `whitespace-mode' is automagically turned on.
+ "Modes for which global `whitespace-mode' is automagically turned on.
Global `whitespace-mode' is controlled by the command
`global-whitespace-mode'.
(defcustom whitespace-action nil
- "*Specify which action is taken when a buffer is visited, killed or written.
+ "Specify which action is taken when a buffer is visited or written.
It's a list containing some or all of the following values:
when local whitespace is turned on.
auto-cleanup cleanup any bogus whitespace when buffer is
- written or killed.
+ written.
See `whitespace-cleanup' and
`whitespace-cleanup-region'.
abort-on-bogus abort if there is any bogus whitespace and the
- buffer is written or killed.
+ buffer is written.
+
+ warn-if-read-only give a warning if `cleanup' or `auto-cleanup'
+ is included in `whitespace-action' and the
+ buffer is read-only.
Any other value is treated as nil."
:type '(choice :tag "Actions"
(const :tag "Cleanup When On" cleanup)
(const :tag "Report On Bogus" report-on-bogus)
(const :tag "Auto Cleanup" auto-cleanup)
- (const :tag "Abort On Bogus" abort-on-bogus))))
+ (const :tag "Abort On Bogus" abort-on-bogus)
+ (const :tag "Warn If Read-Only" warn-if-read-only))))
:group 'whitespace)
\f
If ARG is null, toggle whitespace visualization.
If ARG is a number greater than zero, turn on visualization;
otherwise, turn off visualization.
-Only useful with a windowing system."
+
+See also `whitespace-style', `whitespace-newline' and
+`whitespace-display-mappings'."
:lighter " ws"
:init-value nil
:global nil
(t ; whitespace-mode off
(whitespace-turn-off))))
+
+;;;###autoload
+(define-minor-mode whitespace-newline-mode
+ "Toggle NEWLINE minor mode visualization (\"nl\" on modeline).
+
+If ARG is null, toggle NEWLINE visualization.
+If ARG is a number greater than zero, turn on visualization;
+otherwise, turn off visualization.
+
+Use `whitespace-newline-mode' only for NEWLINE visualization
+exclusively. For other visualizations, including NEWLINE
+visualization together with (HARD) SPACEs and/or TABs, please,
+use `whitespace-mode'.
+
+See also `whitespace-newline' and `whitespace-display-mappings'."
+ :lighter " nl"
+ :init-value nil
+ :global nil
+ :group 'whitespace
+ (let ((whitespace-style '(newline-mark newline)))
+ (whitespace-mode whitespace-newline-mode)
+ ;; sync states (running a batch job)
+ (setq whitespace-newline-mode whitespace-mode)))
+
\f
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;; User commands - Global mode
If ARG is null, toggle whitespace visualization.
If ARG is a number greater than zero, turn on visualization;
otherwise, turn off visualization.
-Only useful with a windowing system."
+
+See also `whitespace-style', `whitespace-newline' and
+`whitespace-display-mappings'."
:lighter " WS"
:init-value nil
:global t
;; Otherwise, turn on whitespace mode.
(whitespace-turn-on)))))
+
+;;;###autoload
+(define-minor-mode global-whitespace-newline-mode
+ "Toggle NEWLINE global minor mode visualization (\"NL\" on modeline).
+
+If ARG is null, toggle NEWLINE visualization.
+If ARG is a number greater than zero, turn on visualization;
+otherwise, turn off visualization.
+
+Use `global-whitespace-newline-mode' only for NEWLINE
+visualization exclusively. For other visualizations, including
+NEWLINE visualization together with (HARD) SPACEs and/or TABs,
+please, use `global-whitespace-mode'.
+
+See also `whitespace-newline' and `whitespace-display-mappings'."
+ :lighter " NL"
+ :init-value nil
+ :global t
+ :group 'whitespace
+ (let ((whitespace-style '(newline-mark newline)))
+ (global-whitespace-mode global-whitespace-newline-mode)
+ ;; sync states (running a batch job)
+ (setq global-whitespace-newline-mode global-whitespace-mode)))
+
\f
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;; User commands - Toggle
(defvar whitespace-tab-width tab-width
"Used to save locally `tab-width' value.")
+(defvar whitespace-point (point)
+ "Used to save locally current point value.
+Used by `whitespace-trailing-regexp' function (which see).")
+
+(defvar whitespace-font-lock-refontify nil
+ "Used to save locally the font-lock refontify state.
+Used by `whitespace-post-command-hook' function (which see).")
+
;;;###autoload
(defun whitespace-toggle-options (arg)
whitespace-style restore `whitespace-style' value
-Only useful with a windowing system.
-
See `whitespace-style' and `indent-tabs-mode' for documentation."
(interactive (whitespace-interactive-char t))
(let ((whitespace-style
whitespace-style restore `whitespace-style' value
-Only useful with a windowing system.
-
See `whitespace-style' and `indent-tabs-mode' for documentation."
(interactive (whitespace-interactive-char nil))
(let ((whitespace-style
It usually applies to the whole buffer, but in transient mark
mode when the mark is active, it applies to the region. It also
-applies to the region when it is not in transiente mark mode, the
+applies to the region when it is not in transient mark mode, the
mark is active and \\[universal-argument] was pressed just before
calling `whitespace-cleanup' interactively.
See `whitespace-style', `indent-tabs-mode' and `tab-width' for
documentation."
- (interactive "@*")
- (if (and (or transient-mark-mode
- current-prefix-arg)
- mark-active)
- ;; region active
- ;; PROBLEMs 1 and 2 are not handled in region
- ;; PROBLEM 3: 8 or more SPACEs at bol
- ;; PROBLEM 4: SPACEs before TAB
- ;; PROBLEM 5: SPACEs or TABs at eol
- ;; PROBLEM 6: 8 or more SPACEs after TAB
- (whitespace-cleanup-region (region-beginning) (region-end))
- ;; whole buffer
+ (interactive "@")
+ (cond
+ ;; read-only buffer
+ (buffer-read-only
+ (whitespace-warn-read-only "cleanup"))
+ ;; region active
+ ((and (or transient-mark-mode
+ current-prefix-arg)
+ mark-active)
+ ;; PROBLEMs 1 and 2 are not handled in region
+ ;; PROBLEM 3: 8 or more SPACEs at bol
+ ;; PROBLEM 4: SPACEs before TAB
+ ;; PROBLEM 5: SPACEs or TABs at eol
+ ;; PROBLEM 6: 8 or more SPACEs after TAB
+ (whitespace-cleanup-region (region-beginning) (region-end)))
+ ;; whole buffer
+ (t
(save-excursion
(save-match-data
;; PROBLEM 1: empty lines at bob
;; PROBLEM 4: SPACEs before TAB
;; PROBLEM 5: SPACEs or TABs at eol
;; PROBLEM 6: 8 or more SPACEs after TAB
- (whitespace-cleanup-region (point-min) (point-max))))
+ (whitespace-cleanup-region (point-min) (point-max)))))
;;;###autoload
See `whitespace-style', `indent-tabs-mode' and `tab-width' for
documentation."
- (interactive "@*r")
- (let ((rstart (min start end))
- (rend (copy-marker (max start end)))
- (indent-tabs-mode whitespace-indent-tabs-mode)
- (tab-width whitespace-tab-width)
- overwrite-mode ; enforce no overwrite
- tmp)
- (save-excursion
- (save-match-data
- ;; PROBLEM 1: 8 or more SPACEs at bol
- (cond
- ;; ACTION: replace 8 or more SPACEs at bol by TABs, if
- ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs by
- ;; SPACEs.
- ((memq 'indentation whitespace-style)
- (let ((regexp (whitespace-indentation-regexp)))
- (goto-char rstart)
- (while (re-search-forward regexp rend t)
- (setq tmp (current-indentation))
- (goto-char (match-beginning 0))
- (delete-horizontal-space)
- (unless (eolp)
- (indent-to tmp)))))
- ;; ACTION: replace 8 or more SPACEs at bol by TABs.
- ((memq 'indentation::tab whitespace-style)
- (whitespace-replace-action
- 'tabify rstart rend
- (whitespace-indentation-regexp 'tab) 0))
- ;; ACTION: replace TABs by SPACEs.
- ((memq 'indentation::space whitespace-style)
- (whitespace-replace-action
- 'untabify rstart rend
- (whitespace-indentation-regexp 'space) 0)))
- ;; PROBLEM 3: SPACEs or TABs at eol
- ;; ACTION: remove all SPACEs or TABs at eol
- (when (memq 'trailing whitespace-style)
- (whitespace-replace-action
- 'delete-region rstart rend
- whitespace-trailing-regexp 1))
- ;; PROBLEM 4: 8 or more SPACEs after TAB
- (cond
- ;; ACTION: replace 8 or more SPACEs by TABs, if
- ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs by
- ;; SPACEs.
- ((memq 'space-after-tab whitespace-style)
- (whitespace-replace-action
- (if whitespace-indent-tabs-mode 'tabify 'untabify)
- rstart rend (whitespace-space-after-tab-regexp) 1))
- ;; ACTION: replace 8 or more SPACEs by TABs.
- ((memq 'space-after-tab::tab whitespace-style)
- (whitespace-replace-action
- 'tabify rstart rend
- (whitespace-space-after-tab-regexp 'tab) 1))
- ;; ACTION: replace TABs by SPACEs.
- ((memq 'space-after-tab::space whitespace-style)
- (whitespace-replace-action
- 'untabify rstart rend
- (whitespace-space-after-tab-regexp 'space) 1)))
- ;; PROBLEM 2: SPACEs before TAB
- (cond
- ;; ACTION: replace SPACEs before TAB by TABs, if
- ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs by
- ;; SPACEs.
- ((memq 'space-before-tab whitespace-style)
- (whitespace-replace-action
- (if whitespace-indent-tabs-mode 'tabify 'untabify)
- rstart rend whitespace-space-before-tab-regexp
- (if whitespace-indent-tabs-mode 1 2)))
- ;; ACTION: replace SPACEs before TAB by TABs.
- ((memq 'space-before-tab::tab whitespace-style)
- (whitespace-replace-action
- 'tabify rstart rend
- whitespace-space-before-tab-regexp 1))
- ;; ACTION: replace TABs by SPACEs.
- ((memq 'space-before-tab::space whitespace-style)
- (whitespace-replace-action
- 'untabify rstart rend
- whitespace-space-before-tab-regexp 2)))))
- (set-marker rend nil))) ; point marker to nowhere
+ (interactive "@r")
+ (if buffer-read-only
+ ;; read-only buffer
+ (whitespace-warn-read-only "cleanup region")
+ ;; non-read-only buffer
+ (let ((rstart (min start end))
+ (rend (copy-marker (max start end)))
+ (indent-tabs-mode whitespace-indent-tabs-mode)
+ (tab-width whitespace-tab-width)
+ overwrite-mode ; enforce no overwrite
+ tmp)
+ (save-excursion
+ (save-match-data
+ ;; PROBLEM 1: 8 or more SPACEs at bol
+ (cond
+ ;; ACTION: replace 8 or more SPACEs at bol by TABs, if
+ ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs
+ ;; by SPACEs.
+ ((memq 'indentation whitespace-style)
+ (let ((regexp (whitespace-indentation-regexp)))
+ (goto-char rstart)
+ (while (re-search-forward regexp rend t)
+ (setq tmp (current-indentation))
+ (goto-char (match-beginning 0))
+ (delete-horizontal-space)
+ (unless (eolp)
+ (indent-to tmp)))))
+ ;; ACTION: replace 8 or more SPACEs at bol by TABs.
+ ((memq 'indentation::tab whitespace-style)
+ (whitespace-replace-action
+ 'tabify rstart rend
+ (whitespace-indentation-regexp 'tab) 0))
+ ;; ACTION: replace TABs by SPACEs.
+ ((memq 'indentation::space whitespace-style)
+ (whitespace-replace-action
+ 'untabify rstart rend
+ (whitespace-indentation-regexp 'space) 0)))
+ ;; PROBLEM 3: SPACEs or TABs at eol
+ ;; ACTION: remove all SPACEs or TABs at eol
+ (when (memq 'trailing whitespace-style)
+ (whitespace-replace-action
+ 'delete-region rstart rend
+ whitespace-trailing-regexp 1))
+ ;; PROBLEM 4: 8 or more SPACEs after TAB
+ (cond
+ ;; ACTION: replace 8 or more SPACEs by TABs, if
+ ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs
+ ;; by SPACEs.
+ ((memq 'space-after-tab whitespace-style)
+ (whitespace-replace-action
+ (if whitespace-indent-tabs-mode 'tabify 'untabify)
+ rstart rend (whitespace-space-after-tab-regexp) 1))
+ ;; ACTION: replace 8 or more SPACEs by TABs.
+ ((memq 'space-after-tab::tab whitespace-style)
+ (whitespace-replace-action
+ 'tabify rstart rend
+ (whitespace-space-after-tab-regexp 'tab) 1))
+ ;; ACTION: replace TABs by SPACEs.
+ ((memq 'space-after-tab::space whitespace-style)
+ (whitespace-replace-action
+ 'untabify rstart rend
+ (whitespace-space-after-tab-regexp 'space) 1)))
+ ;; PROBLEM 2: SPACEs before TAB
+ (cond
+ ;; ACTION: replace SPACEs before TAB by TABs, if
+ ;; `indent-tabs-mode' is non-nil; otherwise, replace TABs
+ ;; by SPACEs.
+ ((memq 'space-before-tab whitespace-style)
+ (whitespace-replace-action
+ (if whitespace-indent-tabs-mode 'tabify 'untabify)
+ rstart rend whitespace-space-before-tab-regexp
+ (if whitespace-indent-tabs-mode 1 2)))
+ ;; ACTION: replace SPACEs before TAB by TABs.
+ ((memq 'space-before-tab::tab whitespace-style)
+ (whitespace-replace-action
+ 'tabify rstart rend
+ whitespace-space-before-tab-regexp 1))
+ ;; ACTION: replace TABs by SPACEs.
+ ((memq 'space-before-tab::space whitespace-style)
+ (whitespace-replace-action
+ 'untabify rstart rend
+ whitespace-space-before-tab-regexp 2)))))
+ (set-marker rend nil)))) ; point marker to nowhere
(defun whitespace-replace-action (action rstart rend regexp index)
(unless (get-buffer whitespace-help-buffer-name)
(delete-other-windows)
(let ((buffer (get-buffer-create whitespace-help-buffer-name)))
- (save-excursion
- (set-buffer buffer)
+ (with-current-buffer buffer
(erase-buffer)
(insert whitespace-help-text)
(whitespace-insert-option-mark
(defun whitespace-turn-on ()
"Turn on whitespace visualization."
;; prepare local hooks
- (whitespace-add-local-hook)
+ (add-hook 'write-file-functions 'whitespace-write-file-hook nil t)
;; create whitespace local buffer environment
(set (make-local-variable 'whitespace-font-lock-mode) nil)
(set (make-local-variable 'whitespace-font-lock) nil)
(defun whitespace-turn-off ()
"Turn off whitespace visualization."
- (whitespace-remove-local-hook)
+ (remove-hook 'write-file-functions 'whitespace-write-file-hook t)
(when whitespace-active-style
(whitespace-color-off)
(whitespace-display-char-off)))
(setq whitespace-font-lock t
whitespace-font-lock-keywords
(copy-sequence font-lock-keywords)))
+ ;; save current point and refontify when necessary
+ (set (make-local-variable 'whitespace-point)
+ (point))
+ (set (make-local-variable 'whitespace-font-lock-refontify)
+ nil)
+ (add-hook 'post-command-hook #'whitespace-post-command-hook nil t)
;; turn off font lock
(set (make-local-variable 'whitespace-font-lock-mode)
font-lock-mode)
nil
(list
;; Show SPACEs
- (list whitespace-space-regexp 1 whitespace-space t)
+ (list #'whitespace-space-regexp 1 whitespace-space t)
;; Show HARD SPACEs
(list whitespace-hspace-regexp 1 whitespace-hspace t))
t))
nil
(list
;; Show TABs
- (list whitespace-tab-regexp 1 whitespace-tab t))
+ (list #'whitespace-tab-regexp 1 whitespace-tab t))
t))
(when (memq 'trailing whitespace-active-style)
(font-lock-add-keywords
nil
(list
;; Show trailing blanks
- (list whitespace-trailing-regexp 1 whitespace-trailing t))
+ (list #'whitespace-trailing-regexp 1 whitespace-trailing t))
t))
(when (or (memq 'lines whitespace-active-style)
(memq 'lines-tail whitespace-active-style))
(format
"^\\([^\t\n]\\{%s\\}\\|[^\t\n]\\{0,%s\\}\t\\)\\{%d\\}%s\\(.+\\)$"
whitespace-tab-width (1- whitespace-tab-width)
- (/ whitespace-line-column tab-width)
+ (/ whitespace-line-column whitespace-tab-width)
(let ((rem (% whitespace-line-column whitespace-tab-width)))
(if (zerop rem)
""
nil
(list
;; Show empty lines at beginning of buffer
- (list whitespace-empty-at-bob-regexp
+ (list #'whitespace-empty-at-bob-regexp
1 whitespace-empty t))
t)
(font-lock-add-keywords
nil
(list
;; Show empty lines at end of buffer
- (list whitespace-empty-at-eob-regexp
+ (list #'whitespace-empty-at-eob-regexp
1 whitespace-empty t))
t))
(cond
;; turn off font lock
(when (whitespace-style-face-p)
(font-lock-mode 0)
+ (remove-hook 'post-command-hook #'whitespace-post-command-hook)
(when whitespace-font-lock
(setq whitespace-font-lock nil
font-lock-keywords whitespace-font-lock-keywords))
;; restore original font lock state
(font-lock-mode whitespace-font-lock-mode)))
+
+(defun whitespace-trailing-regexp (limit)
+ "Match trailing spaces which do not contain the point at end of line."
+ (let ((status t))
+ (while (if (re-search-forward whitespace-trailing-regexp limit t)
+ (save-match-data
+ (= whitespace-point (match-end 1))) ;; loop if point at eol
+ (setq status nil))) ;; end of buffer
+ status))
+
+
+(defun whitespace-empty-at-bob-regexp (limit)
+ "Match spaces at beginning of buffer which do not contain the point at \
+beginning of buffer."
+ (and (/= whitespace-point 1)
+ (re-search-forward whitespace-empty-at-bob-regexp limit t)))
+
+
+(defun whitespace-empty-at-eob-regexp (limit)
+ "Match spaces at end of buffer which do not contain the point at end of \
+buffer."
+ (and (/= whitespace-point (1+ (buffer-size)))
+ (re-search-forward whitespace-empty-at-eob-regexp limit t)))
+
+
+(defun whitespace-space-regexp (limit)
+ "Match spaces."
+ (setq whitespace-font-lock-refontify t)
+ (re-search-forward whitespace-space-regexp limit t))
+
+
+(defun whitespace-tab-regexp (limit)
+ "Match tabs."
+ (setq whitespace-font-lock-refontify t)
+ (re-search-forward whitespace-tab-regexp limit t))
+
+
+(defun whitespace-post-command-hook ()
+ "Save current point into `whitespace-point' variable.
+Also refontify when necessary."
+ (setq whitespace-point (point))
+ (let ((refontify (or (eolp) ; end of line
+ (= whitespace-point 1)))) ; beginning of buffer
+ (when (or whitespace-font-lock-refontify refontify)
+ (setq whitespace-font-lock-refontify refontify)
+ (jit-lock-refontify))))
+
\f
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;; Hacked from visws.el (Miles Bader <miles@gnu.org>)
(whitespace-report nil t))))
-(defun whitespace-add-local-hook ()
- "Add some whitespace hooks locally."
- (add-hook 'write-file-functions 'whitespace-write-file-hook nil t)
- (add-hook 'kill-buffer-hook 'whitespace-kill-buffer-hook nil t))
-
-
-(defun whitespace-remove-local-hook ()
- "Remove some whitespace hooks locally."
- (remove-hook 'write-file-functions 'whitespace-write-file-hook t)
- (remove-hook 'kill-buffer-hook 'whitespace-kill-buffer-hook t))
-
-
(defun whitespace-write-file-hook ()
"Action to be taken when buffer is written.
It should be added buffer-locally to `write-file-functions'."
- (when (whitespace-action)
- (error "Abort write due to whitespace problems in %s"
- (buffer-name)))
- nil) ; continue hook processing
-
-
-(defun whitespace-kill-buffer-hook ()
- "Action to be taken when buffer is killed.
-It should be added buffer-locally to `kill-buffer-hook'."
- (whitespace-action)
+ (cond ((memq 'auto-cleanup whitespace-action)
+ (whitespace-cleanup))
+ ((memq 'abort-on-bogus whitespace-action)
+ (when (whitespace-report nil t)
+ (error "Abort write due to whitespace problems in %s"
+ (buffer-name)))))
nil) ; continue hook processing
-(defun whitespace-action ()
- "Action to be taken when buffer is killed or written.
-Return t when the action should be aborted."
- (cond ((memq 'auto-cleanup whitespace-action)
- (whitespace-cleanup)
- nil)
- ((memq 'abort-on-bogus whitespace-action)
- (whitespace-report nil t))
- (t
- nil)))
+(defun whitespace-warn-read-only (msg)
+ "Warn if buffer is read-only."
+ (when (memq 'warn-if-read-only whitespace-action)
+ (message "Can't %s: %s is read-only" msg (buffer-name))))
\f
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
HCoop / bpt / emacs.git / blobdiff