(defvar whitespace-version "3.1" "Version of the whitespace library.")
(defvar whitespace-all-buffer-files nil
"An associated list of buffers and files checked for whitespace cleanliness.
This is to enable periodic checking of whitespace cleanliness in the files
visited by the buffers.")
(defvar whitespace-rescan-timer nil
"Timer object used to rescan the files in buffers that have been modified.")
(defvar whitespace-mode nil
"Non-nil when Whitespace mode (a minor mode) is enabled.")
(make-variable-buffer-local 'whitespace-mode)
(put 'whitespace-mode 'permanent-local nil)
(defvar whitespace-mode-line nil
"String to display in the mode line for Whitespace mode.")
(make-variable-buffer-local 'whitespace-mode-line)
(put 'whitespace-mode-line 'permanent-local nil)
(defvar whitespace-check-buffer-leading nil
"Test leading whitespace for file in current buffer if t")
(make-variable-buffer-local 'whitespace-check-buffer-leading)
(put 'whitespace-check-buffer-leading 'permanent-local nil)
(defvar whitespace-check-buffer-trailing nil
"Test trailing whitespace for file in current buffer if t")
(make-variable-buffer-local 'whitespace-check-buffer-trailing)
(put 'whitespace-check-buffer-trailing 'permanent-local nil)
(defvar whitespace-check-buffer-indent nil
"Test indentation whitespace for file in current buffer if t")
(make-variable-buffer-local 'whitespace-check-buffer-indent)
(put 'whitespace-check-buffer-indent 'permanent-local nil)
(defvar whitespace-check-buffer-spacetab nil
"Test Space-followed-by-TABS whitespace for file in current buffer if t")
(make-variable-buffer-local 'whitespace-check-buffer-spacetab)
(put 'whitespace-check-buffer-spacetab 'permanent-local nil)
(defvar whitespace-check-buffer-ateol nil
"Test end-of-line whitespace for file in current buffer if t")
(make-variable-buffer-local 'whitespace-check-buffer-ateol)
(put 'whitespace-check-buffer-ateol 'permanent-local nil)
(eval-when-compile
(if (not (fboundp 'defgroup))
(defmacro defgroup (sym memb doc &rest args)
"Null macro for defgroup in all versions of Emacs that don't define
defgroup"
t))
(if (not (fboundp 'defcustom))
(defmacro defcustom (sym val doc &rest args)
"Macro to alias defcustom to defvar in all versions of Emacs that
don't define defcustom"
`(defvar ,sym ,val ,doc))))
(if (featurep 'xemacs)
(defgroup whitespace nil
"Check for and fix five different types of whitespaces in source code."
:group 'editing)
(defgroup whitespace nil
"Check for and fix five different types of whitespaces in source code."
:version "21.1"
:group 'convenience))
(defcustom whitespace-check-leading-whitespace t
"Flag to check leading whitespace. This is the global for the system.
It can be overriden by setting a buffer local variable
`whitespace-check-buffer-leading'"
:type 'boolean
:group 'whitespace)
(defcustom whitespace-check-trailing-whitespace t
"Flag to check trailing whitespace. This is the global for the system.
It can be overriden by setting a buffer local variable
`whitespace-check-buffer-trailing'"
:type 'boolean
:group 'whitespace)
(defcustom whitespace-check-spacetab-whitespace t
"Flag to check space followed by a TAB. This is the global for the system.
It can be overriden by setting a buffer local variable
`whitespace-check-buffer-spacetab'"
:type 'boolean
:group 'whitespace)
(defcustom whitespace-spacetab-regexp " \t"
"Regexp to match a space followed by a TAB."
:type 'regexp
:group 'whitespace)
(defcustom whitespace-check-indent-whitespace indent-tabs-mode
"Flag to check indentation whitespace. This is the global for the system.
It can be overriden by setting a buffer local variable
`whitespace-check-buffer-indent'"
:type 'boolean
:group 'whitespace)
(defcustom whitespace-indent-regexp (concat "^\\(\t*\\) " " ")
"Regexp to match (any TABS followed by) 8/more whitespaces at start of line."
:type 'regexp
:group 'whitespace)
(defcustom whitespace-check-ateol-whitespace t
"Flag to check end-of-line whitespace. This is the global for the system.
It can be overriden by setting a buffer local variable
`whitespace-check-buffer-ateol'"
:type 'boolean
:group 'whitespace)
(defcustom whitespace-ateol-regexp "[ \t]$"
"Regexp to match a TAB or a space at the EOL."
:type 'regexp
:group 'whitespace)
(defcustom whitespace-errbuf "*Whitespace Errors*"
"The name of the buffer where whitespace related messages will be logged."
:type 'string
:group 'whitespace)
(defcustom whitespace-abort-on-error nil
"While writing a file, abort if the file is unclean. If
`whitespace-auto-cleanup' is set, that takes precedence over this
variable."
:type 'boolean
:group 'whitespace)
(defcustom whitespace-auto-cleanup nil
"Cleanup a buffer automatically on finding it whitespace unclean."
:type 'boolean
:group 'whitespace)
(defcustom whitespace-silent nil
"All whitespace errors will be shown only in the modeline when t.
Note that setting this may cause all whitespaces introduced in a file to go
unnoticed when the buffer is killed, unless the user visits the `*Whitespace
Errors*' buffer before opening (or closing) another file."
:type 'boolean
:group 'whitespace)
(defcustom whitespace-modes '(ada-mode asm-mode autoconf-mode awk-mode
c-mode c++-mode cc-mode
change-log-mode cperl-mode
electric-nroff-mode emacs-lisp-mode
f90-mode fortran-mode html-mode
html3-mode java-mode jde-mode
ksh-mode latex-mode LaTeX-mode
lisp-mode m4-mode makefile-mode
modula-2-mode nroff-mode objc-mode
pascal-mode perl-mode prolog-mode
python-mode scheme-mode sgml-mode
sh-mode shell-script-mode simula-mode
tcl-mode tex-mode texinfo-mode
vrml-mode xml-mode)
"Major Modes in which we turn on whitespace checking.
These are mostly programming and documentation modes. But you may add other
modes that you want whitespaces checked in by adding something like the
following to your `.emacs':
\(setq whitespace-modes (cons 'my-mode (cons 'my-other-mode
whitespace-modes))\)
Or, alternately, you can use the Emacs `customize' command to set this."
:type '(repeat symbol)
:group 'whitespace)
(defcustom whitespace-rescan-timer-time 600
"Period in seconds to rescan modified buffers for whitespace creep.
This is the period after which the timer will fire causing
`whitespace-rescan-files-in-buffers' to check for whitespace creep in
modified buffers.
To disable timer scans, set this to zero."
:type 'integer
:group 'whitespace)
(defcustom whitespace-display-in-modeline t
"Display whitespace errors on the modeline."
:type 'boolean
:group 'whitespace)
(if (not (assoc 'whitespace-mode minor-mode-alist))
(setq minor-mode-alist (cons '(whitespace-mode whitespace-mode-line)
minor-mode-alist)))
(set-default 'whitespace-check-buffer-leading
whitespace-check-leading-whitespace)
(set-default 'whitespace-check-buffer-trailing
whitespace-check-trailing-whitespace)
(set-default 'whitespace-check-buffer-indent
whitespace-check-indent-whitespace)
(set-default 'whitespace-check-buffer-spacetab
whitespace-check-spacetab-whitespace)
(set-default 'whitespace-check-buffer-ateol
whitespace-check-ateol-whitespace)
(defun whitespace-check-whitespace-mode (&optional arg)
"Test and set the whitespace-mode in qualifying buffers."
(if (null whitespace-mode)
(setq whitespace-mode
(if (or arg (member major-mode whitespace-modes))
t
nil))))
(defun whitespace-toggle-leading-check ()
"Toggle the check for leading space in the local buffer."
(interactive)
(let ((current-val whitespace-check-buffer-leading))
(setq whitespace-check-buffer-leading (not current-val))
(message "Will%s check for leading space in buffer."
(if whitespace-check-buffer-leading "" " not"))
(if whitespace-check-buffer-leading (whitespace-buffer-leading))))
(defun whitespace-toggle-trailing-check ()
"Toggle the check for trailing space in the local buffer."
(interactive)
(let ((current-val whitespace-check-buffer-trailing))
(setq whitespace-check-buffer-trailing (not current-val))
(message "Will%s check for trailing space in buffer."
(if whitespace-check-buffer-trailing "" " not"))
(if whitespace-check-buffer-trailing (whitespace-buffer-trailing))))
(defun whitespace-toggle-indent-check ()
"Toggle the check for indentation space in the local buffer."
(interactive)
(let ((current-val whitespace-check-buffer-indent))
(setq whitespace-check-buffer-indent (not current-val))
(message "Will%s check for indentation space in buffer."
(if whitespace-check-buffer-indent "" " not"))
(if whitespace-check-buffer-indent
(whitespace-buffer-search whitespace-indent-regexp))))
(defun whitespace-toggle-spacetab-check ()
"Toggle the check for space-followed-by-TABs in the local buffer."
(interactive)
(let ((current-val whitespace-check-buffer-spacetab))
(setq whitespace-check-buffer-spacetab (not current-val))
(message "Will%s check for space-followed-by-TABs in buffer."
(if whitespace-check-buffer-spacetab "" " not"))
(if whitespace-check-buffer-spacetab
(whitespace-buffer-search whitespace-spacetab-regexp))))
(defun whitespace-toggle-ateol-check ()
"Toggle the check for end-of-line space in the local buffer."
(interactive)
(let ((current-val whitespace-check-buffer-ateol))
(setq whitespace-check-buffer-ateol (not current-val))
(message "Will%s check for end-of-line space in buffer."
(if whitespace-check-buffer-ateol "" " not"))
(if whitespace-check-buffer-ateol
(whitespace-buffer-search whitespace-ateol-regexp))))
(defun whitespace-buffer (&optional quiet)
"Find five different types of white spaces in buffer.
These are:
1. Leading space \(empty lines at the top of a file\).
2. Trailing space \(empty lines at the end of a file\).
3. Indentation space \(8 or more spaces, that should be replaced with TABS\).
4. Spaces followed by a TAB. \(Almost always, we never want that\).
5. Spaces or TABS at the end of a line.
Check for whitespace only if this buffer really contains a non-empty file
and:
1. the major mode is one of the whitespace-modes, or
2. `whitespace-buffer' was explicitly called with a prefix argument."
(interactive)
(let ((whitespace-error nil))
(whitespace-check-whitespace-mode current-prefix-arg)
(if (and buffer-file-name (> (buffer-size) 0) whitespace-mode)
(progn
(whitespace-check-buffer-list (buffer-name) buffer-file-name)
(whitespace-tickle-timer)
(if whitespace-auto-cleanup
(if buffer-read-only
(if (not quiet)
(message "Can't cleanup: %s is read-only" (buffer-name)))
(whitespace-cleanup))
(let ((whitespace-leading (if whitespace-check-buffer-leading
(whitespace-buffer-leading)
nil))
(whitespace-trailing (if whitespace-check-buffer-trailing
(whitespace-buffer-trailing)
nil))
(whitespace-indent (if whitespace-check-buffer-indent
(whitespace-buffer-search
whitespace-indent-regexp)
nil))
(whitespace-spacetab (if whitespace-check-buffer-spacetab
(whitespace-buffer-search
whitespace-spacetab-regexp)
nil))
(whitespace-ateol (if whitespace-check-buffer-ateol
(whitespace-buffer-search
whitespace-ateol-regexp)
nil))
(whitespace-errmsg nil)
(whitespace-filename buffer-file-name)
(whitespace-this-modeline ""))
(setq whitespace-error (or whitespace-leading whitespace-indent
whitespace-spacetab whitespace-ateol
whitespace-trailing))
(if whitespace-error
(progn
(setq whitespace-errmsg
(concat whitespace-filename " contains:\n"
(if whitespace-leading
"Leading whitespace\n")
(if whitespace-indent
(concat "Indentation whitespace"
whitespace-indent "\n"))
(if whitespace-spacetab
(concat "Space followed by Tab"
whitespace-spacetab "\n"))
(if whitespace-ateol
(concat "End-of-line whitespace"
whitespace-ateol "\n"))
(if whitespace-trailing
"Trailing whitespace\n")
"\ntype `M-x whitespace-cleanup' to "
"cleanup the file."))
(setq whitespace-this-modeline
(concat (if whitespace-ateol "e")
(if whitespace-indent "i")
(if whitespace-leading "l")
(if whitespace-spacetab "s")
(if whitespace-trailing "t")))))
(whitespace-update-modeline whitespace-this-modeline)
(save-excursion
(get-buffer-create whitespace-errbuf)
(kill-buffer whitespace-errbuf)
(get-buffer-create whitespace-errbuf)
(set-buffer whitespace-errbuf)
(if whitespace-errmsg
(progn
(insert whitespace-errmsg)
(if (not (or quiet whitespace-silent))
(display-buffer whitespace-errbuf t))
(if (not quiet)
(message "Whitespaces: [%s%s] in %s"
whitespace-this-modeline
(let ((whitespace-unchecked
(whitespace-unchecked-whitespaces)))
(if whitespace-unchecked
(concat "!" whitespace-unchecked)
""))
whitespace-filename)))
(if (not quiet)
(message "%s clean" whitespace-filename))))))))
(if whitespace-error
t
nil)))
(defun whitespace-region (s e)
"Check the region for whitespace errors."
(interactive "r")
(save-excursion
(save-restriction
(narrow-to-region s e)
(whitespace-buffer))))
(defun whitespace-cleanup ()
"Cleanup the five different kinds of whitespace problems.
Use \\[describe-function] whitespace-describe to read a summary of the
whitespace problems."
(interactive)
(whitespace-check-whitespace-mode current-prefix-arg)
(if (and buffer-file-name whitespace-mode)
(let ((whitespace-any nil)
(whitespace-tabwith 8)
(whitespace-tabwith-saved tab-width))
(setq tab-width whitespace-tabwith)
(if (and whitespace-check-buffer-leading
(whitespace-buffer-leading))
(progn
(whitespace-buffer-leading-cleanup)
(setq whitespace-any t)))
(if (and whitespace-check-buffer-trailing
(whitespace-buffer-trailing))
(progn
(whitespace-buffer-trailing-cleanup)
(setq whitespace-any t)))
(if (and whitespace-check-buffer-indent
(whitespace-buffer-search whitespace-indent-regexp))
(progn
(whitespace-indent-cleanup)
(setq whitespace-any t)))
(if (and whitespace-check-buffer-spacetab
(whitespace-buffer-search whitespace-spacetab-regexp))
(progn
(whitespace-buffer-cleanup whitespace-spacetab-regexp "\t")
(setq whitespace-any t)))
(if (and whitespace-check-buffer-ateol
(whitespace-buffer-search whitespace-ateol-regexp))
(progn
(whitespace-buffer-cleanup whitespace-ateol-regexp "")
(setq whitespace-any t)))
(if whitespace-any
(whitespace-cleanup)
(progn
(message "%s clean" buffer-file-name)
(whitespace-update-modeline)))
(setq tab-width whitespace-tabwith-saved))))
(defun whitespace-cleanup-region (s e)
"Whitespace cleanup on the region."
(interactive "r")
(save-excursion
(save-restriction
(narrow-to-region s e)
(whitespace-cleanup))
(whitespace-buffer t)))
(defun whitespace-buffer-leading ()
"Check to see if there are any empty lines at the top of the file."
(save-excursion
(let ((pmin nil)
(pmax nil))
(goto-char (point-min))
(beginning-of-line)
(setq pmin (point))
(end-of-line)
(setq pmax (point))
(if (equal pmin pmax)
t
nil))))
(defun whitespace-buffer-leading-cleanup ()
"Remove any empty lines at the top of the file."
(save-excursion
(let ((pmin nil)
(pmax nil))
(goto-char (point-min))
(beginning-of-line)
(setq pmin (point))
(end-of-line)
(setq pmax (point))
(if (equal pmin pmax)
(progn
(kill-line)
(whitespace-buffer-leading-cleanup))))))
(defun whitespace-buffer-trailing ()
"Check to see if are is more than one empty line at the bottom."
(save-excursion
(let ((pmin nil)
(pmax nil))
(goto-char (point-max))
(beginning-of-line)
(setq pmin (point))
(end-of-line)
(setq pmax (point))
(if (equal pmin pmax)
(progn
(goto-char (- (point) 1))
(beginning-of-line)
(setq pmin (point))
(end-of-line)
(setq pmax (point))
(if (equal pmin pmax)
t
nil))
nil))))
(defun whitespace-buffer-trailing-cleanup ()
"Delete all the empty lines at the bottom."
(save-excursion
(let ((pmin nil)
(pmax nil))
(goto-char (point-max))
(beginning-of-line)
(setq pmin (point))
(end-of-line)
(setq pmax (point))
(if (equal pmin pmax)
(progn
(goto-char (1- pmin))
(beginning-of-line)
(setq pmin (point))
(end-of-line)
(setq pmax (point))
(if (equal pmin pmax)
(progn
(goto-char (1- (point-max)))
(beginning-of-line)
(kill-line)
(whitespace-buffer-trailing-cleanup))))))))
(defun whitespace-buffer-search (regexp)
"Search for any given whitespace REGEXP."
(let ((whitespace-retval ""))
(save-excursion
(goto-char (point-min))
(while (re-search-forward regexp nil t)
(setq whitespace-retval (format "%s %s" whitespace-retval
(match-beginning 0))))
(if (equal "" whitespace-retval)
nil
whitespace-retval))))
(defun whitespace-buffer-cleanup (regexp newregexp)
"Search for any given whitespace REGEXP and replace it with the NEWREGEXP."
(save-excursion
(goto-char (point-min))
(while (re-search-forward regexp nil t)
(replace-match newregexp))))
(defun whitespace-indent-cleanup ()
"Search for 8/more spaces at the start of a line and replace it with tabs."
(save-excursion
(goto-char (point-min))
(while (re-search-forward whitespace-indent-regexp nil t)
(let ((column (current-column))
(indent-tabs-mode t))
(delete-region (match-beginning 0) (point))
(indent-to column)))))
(defun whitespace-unchecked-whitespaces ()
"Return the list of whitespaces whose testing has been suppressed."
(let ((unchecked-spaces
(concat (if (not whitespace-check-buffer-ateol) "e")
(if (not whitespace-check-buffer-indent) "i")
(if (not whitespace-check-buffer-leading) "l")
(if (not whitespace-check-buffer-spacetab) "s")
(if (not whitespace-check-buffer-trailing) "t"))))
(if (not (equal unchecked-spaces ""))
unchecked-spaces
nil)))
(defun whitespace-update-modeline (&optional whitespace-err)
"Update modeline with whitespace errors.
Also with whitespaces whose testing has been turned off."
(if whitespace-display-in-modeline
(progn
(setq whitespace-mode-line nil)
(if (and whitespace-err (not (equal whitespace-err "")))
(setq whitespace-mode-line whitespace-err))
(let ((whitespace-unchecked (whitespace-unchecked-whitespaces)))
(if whitespace-unchecked
(setq whitespace-mode-line
(concat whitespace-mode-line "!" whitespace-unchecked))))
(setq whitespace-mode-line (if whitespace-mode-line
(concat " W:" whitespace-mode-line)
nil))
(whitespace-force-mode-line-update))))
(defun whitespace-force-mode-line-update ()
"Force the mode line update for different flavors of Emacs."
(if (fboundp 'redraw-modeline)
(redraw-modeline) (force-mode-line-update)))
(defun whitespace-check-buffer-list (buf-name buf-file)
"Add a buffer and its file to the whitespace monitor list.
The buffer named BUF-NAME and its associated file BUF-FILE are now monitored
periodically for whitespace."
(if (and whitespace-mode (not (member (list buf-file buf-name)
whitespace-all-buffer-files)))
(add-to-list 'whitespace-all-buffer-files (list buf-file buf-name))))
(defun whitespace-tickle-timer ()
"Tickle timer to periodically to scan qualifying files for whitespace creep.
If timer is not set, then set it to scan the files in
`whitespace-all-buffer-files' periodically (defined by
`whitespace-rescan-timer-time') for whitespace creep."
(if (and whitespace-rescan-timer-time (not whitespace-rescan-timer))
(setq whitespace-rescan-timer
(add-timeout whitespace-rescan-timer-time
'whitespace-rescan-files-in-buffers nil
whitespace-rescan-timer-time))))
(defun whitespace-rescan-files-in-buffers (&optional arg)
"Check monitored files for whitespace creep since last scan."
(let ((whitespace-all-my-files whitespace-all-buffer-files)
buffile bufname thiselt buf)
(if (not whitespace-all-my-files)
(progn
(disable-timeout whitespace-rescan-timer)
(setq whitespace-rescan-timer nil))
(while whitespace-all-my-files
(setq thiselt (car whitespace-all-my-files))
(setq whitespace-all-my-files (cdr whitespace-all-my-files))
(setq buffile (car thiselt))
(setq bufname (cadr thiselt))
(setq buf (get-buffer bufname))
(if (buffer-live-p buf)
(save-excursion
(set-buffer bufname)
(if whitespace-mode
(progn
(if whitespace-auto-cleanup
(progn
(whitespace-cleanup))
(progn
(whitespace-buffer t))))
(whitespace-refresh-rescan-list buffile bufname)))
(whitespace-refresh-rescan-list buffile bufname))))))
(defun whitespace-refresh-rescan-list (buffile bufname)
"Refresh the list of files to be rescaned for whitespace creep."
(if whitespace-all-buffer-files
(setq whitespace-all-buffer-files
(delete (list buffile bufname) whitespace-all-buffer-files))
(when whitespace-rescan-timer
(disable-timeout whitespace-rescan-timer)
(setq whitespace-rescan-timer nil))))
(defcustom whitespace-global-mode nil
"Toggle global Whitespace mode.
Setting this variable directly does not take effect;
use either \\[customize] or the function `whitespace-global-mode'
\(which see)."
:set (lambda (sym val)
(whitespace-global-mode (or val 0)))
:initialize 'custom-initialize-default
:type 'boolean
:group 'whitespace
:require 'whitespace)
(defun whitespace-global-mode (&optional arg)
"Toggle using Whitespace mode in new buffers.
With ARG, turn the mode on if and only iff ARG is positive.
When this mode is active, `whitespace-buffer' is added to
`find-file-hooks' and `kill-buffer-hook'."
(interactive "P")
(setq arg (if arg
(> (prefix-numeric-value arg) 0)
(not whitespace-global-mode)))
(if arg
(progn
(add-hook 'find-file-hooks 'whitespace-buffer)
(add-hook 'local-write-file-hooks 'whitespace-write-file-hook)
(add-hook 'kill-buffer-hook 'whitespace-buffer))
(remove-hook 'find-file-hooks 'whitespace-buffer)
(remove-hook 'local-write-file-hooks 'whitespace-write-file-hook)
(remove-hook 'kill-buffer-hook 'whitespace-buffer)))
(defun whitespace-write-file-hook ()
"The local-write-file-hook to be called on the buffer when
whitespace check is enabled."
(interactive)
(let ((werr nil))
(if whitespace-auto-cleanup
(whitespace-cleanup)
(setq werr (whitespace-buffer)))
(if (and whitespace-abort-on-error werr)
(error (concat "Abort write due to whitespaces in "
buffer-file-name))))
nil)
(defun whitespace-describe ()
"A summary of whitespaces and what this library can do about them.
The whitespace library is intended to find and help fix five different types
of whitespace problems that commonly exist in source code.
1. Leading space (empty lines at the top of a file).
2. Trailing space (empty lines at the end of a file).
3. Indentation space (8 or more spaces at beginning of line, that should be
replaced with TABS).
4. Spaces followed by a TAB. (Almost always, we never want that).
5. Spaces or TABS at the end of a line.
Whitespace errors are reported in a buffer, and on the modeline.
Modeline will show a W:<x>!<y> to denote a particular type of whitespace,
where `x' and `y' can be one (or more) of:
e - End-of-Line whitespace.
i - Indentation whitespace.
l - Leading whitespace.
s - Space followed by Tab.
t - Trailing whitespace.
If any of the whitespace checks is turned off, the modeline will display a
!<y>.
(since (3) is the most controversial one, here is the rationale: Most
terminal drivers and printer drivers have TAB configured or even
hardcoded to be 8 spaces. (Some of them allow configuration, but almost
always they default to 8.)
Changing `tab-width' to other than 8 and editing will cause your code to
look different from within Emacs, and say, if you cat it or more it, or
even print it.
Almost all the popular programming modes let you define an offset (like
c-basic-offset or perl-indent-level) to configure the offset, so you
should never have to set your `tab-width' to be other than 8 in all these
modes. In fact, with an indent level of say, 4, 2 TABS will cause Emacs
to replace your 8 spaces with one \t (try it). If vi users in your
office complain, tell them to use vim, which distinguishes between
tabstop and shiftwidth (vi equivalent of our offsets), and also ask them
to set smarttab.)
All the above have caused (and will cause) unwanted codeline integration and
merge problems.
whitespace.el will complain if it detects whitespaces on opening a file, and
warn you on closing a file also (in case you had inserted any
whitespaces during the process of your editing)."
(interactive)
(message "Use C-h f whitespace-describe to read about whitespace.el v%s."
whitespace-version))
(defun whitespace-unload-hook ()
(remove-hook 'find-file-hooks 'whitespace-buffer)
(remove-hook 'local-write-file-hooks 'whitespace-write-file-hook)
(remove-hook 'kill-buffer-hook 'whitespace-buffer))
(provide 'whitespace)