;;; sort.el --- commands to sort text in an Emacs buffer
-;; Copyright (C) 1986, 1987, 1994, 1995, 2003 Free Software Foundation, Inc.
+;; Copyright (C) 1986, 1987, 1994, 1995, 2002, 2003,
+;; 2004, 2005, 2006 Free Software Foundation, Inc.
;; Author: Howie Kaye
;; Maintainer: FSF
;; 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., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
:type 'boolean)
;;;###autoload
-(defun sort-subr (reverse nextrecfun endrecfun &optional startkeyfun endkeyfun)
+(defun sort-subr (reverse nextrecfun endrecfun
+ &optional startkeyfun endkeyfun predicate)
"General text sorting routine to divide buffer into records and sort them.
-Arguments are REVERSE NEXTRECFUN ENDRECFUN &optional STARTKEYFUN ENDKEYFUN.
We divide the accessible portion of the buffer into disjoint pieces
called sort records. A portion of each sort record (perhaps all of
ENDKEYFUN moves from the start of the sort key to the end of the sort key.
ENDKEYFUN may be nil if STARTKEYFUN returns a value or if it would be the
-same as ENDRECFUN."
+same as ENDRECFUN.
+
+PREDICATE is the function to use to compare keys. If keys are numbers,
+it defaults to `<', otherwise it defaults to `string<'."
;; Heuristically try to avoid messages if sorting a small amt of text.
(let ((messages (> (- (point-max) (point-min)) 50000)))
(save-excursion
(or reverse (setq sort-lists (nreverse sort-lists)))
(if messages (message "Sorting records..."))
(setq sort-lists
- (if (fboundp 'sortcar)
- (sortcar sort-lists
- (cond ((numberp (car (car sort-lists)))
- ;; This handles both ints and floats.
- '<)
- ((consp (car (car sort-lists)))
- (function
- (lambda (a b)
- (> 0 (compare-buffer-substrings
- nil (car a) (cdr a)
- nil (car b) (cdr b))))))
- (t
- 'string<)))
- (sort sort-lists
- (cond ((numberp (car (car sort-lists)))
- 'car-less-than-car)
- ((consp (car (car sort-lists)))
- (function
- (lambda (a b)
- (> 0 (compare-buffer-substrings
- nil (car (car a)) (cdr (car a))
- nil (car (car b)) (cdr (car b)))))))
- (t
- (function
- (lambda (a b)
- (string< (car a) (car b)))))))))
+ (sort sort-lists
+ (cond (predicate
+ `(lambda (a b) (,predicate (car a) (car b))))
+ ((numberp (car (car sort-lists)))
+ 'car-less-than-car)
+ ((consp (car (car sort-lists)))
+ (lambda (a b)
+ (> 0 (compare-buffer-substrings
+ nil (car (car a)) (cdr (car a))
+ nil (car (car b)) (cdr (car b))))))
+ (t
+ (lambda (a b) (string< (car a) (car b)))))))
(if reverse (setq sort-lists (nreverse sort-lists)))
(if messages (message "Reordering buffer..."))
(sort-reorder-buffer sort-lists old)))
(cond ((prog1 done (setq done nil)))
(endrecfun (funcall endrecfun))
(nextrecfun (funcall nextrecfun) (setq done t)))
- (if key (setq sort-lists (cons
- ;; consing optimization in case in which key
- ;; is same as record.
- (if (and (consp key)
- (equal (car key) start-rec)
- (equal (cdr key) (point)))
- (cons key key)
- (cons key (cons start-rec (point))))
- sort-lists)))
+ (if key (push
+ ;; consing optimization in case in which key is same as record.
+ (if (and (consp key)
+ (equal (car key) start-rec)
+ (equal (cdr key) (point)))
+ (cons key key)
+ (cons key (cons start-rec (point))))
+ sort-lists))
(and (not done) nextrecfun (funcall nextrecfun)))
sort-lists))
(set-buffer old-buffer)
(let ((inhibit-quit t))
;; Make sure insertions done for reordering
- ;; do not go after any markers at the end of the sorted region,
- ;; by inserting a space to separate them.
- (goto-char max)
- (insert-before-markers " ")
- ;; Delete the original copy of the text.
- (delete-region min max)
- ;; Now replace the separator " " with the sorted text.
- (goto-char (point-max))
+ ;; saves any markers at the end of the sorted region,
+ ;; by leaving the last character of the region.
+ (delete-region min (1- max))
+ ;; Now replace the one remaining old character with the sorted text.
+ (goto-char (point-min))
(insert-buffer-substring temp-buffer)
- (delete-region min (1+ min))))))
+ (delete-region max (1+ max))))))
;;;###autoload
-(defun sort-lines (reverse beg end)
+(defun sort-lines (reverse beg end)
"Sort lines in region alphabetically; argument means descending order.
Called from a program, there are three arguments:
REVERSE (non-nil means reverse order), BEG and END (region to sort).
(save-restriction
(narrow-to-region beg end)
(goto-char (point-min))
- (sort-subr reverse 'forward-line 'end-of-line))))
+ (let ;; To make `end-of-line' and etc. to ignore fields.
+ ((inhibit-field-text-motion t))
+ (sort-subr reverse 'forward-line 'end-of-line)))))
;;;###autoload
(defun sort-paragraphs (reverse beg end)
Called from a program, there are three arguments:
FIELD, BEG and END. BEG and END specify region to sort."
(interactive "p\nr")
- (sort-fields-1 field beg end
- (lambda ()
- (sort-skip-fields field)
- (let* ((case-fold-search t)
- (base
- (if (looking-at "\\(0x\\)[0-9a-f]\\|\\(0\\)[0-7]")
- (cond ((match-beginning 1)
- (goto-char (match-end 1))
- 16)
- ((match-beginning 2)
- (goto-char (match-end 2))
- 8)
- (t nil)))))
- (string-to-number (buffer-substring (point)
- (save-excursion
- (forward-sexp 1)
- (point)))
- (or base sort-numeric-base))))
- nil))
+ (let ;; To make `end-of-line' and etc. to ignore fields.
+ ((inhibit-field-text-motion t))
+ (sort-fields-1 field beg end
+ (lambda ()
+ (sort-skip-fields field)
+ (let* ((case-fold-search t)
+ (base
+ (if (looking-at "\\(0x\\)[0-9a-f]\\|\\(0\\)[0-7]")
+ (cond ((match-beginning 1)
+ (goto-char (match-end 1))
+ 16)
+ ((match-beginning 2)
+ (goto-char (match-end 2))
+ 8)
+ (t nil)))))
+ (string-to-number (buffer-substring (point)
+ (save-excursion
+ (forward-sexp 1)
+ (point)))
+ (or base sort-numeric-base))))
+ nil)))
;;;;;###autoload
;;(defun sort-float-fields (field beg end)
The variable `sort-fold-case' determines whether alphabetic case affects
the sort order."
(interactive "p\nr")
- (sort-fields-1 field beg end
- (function (lambda ()
- (sort-skip-fields field)
- nil))
- (function (lambda () (skip-chars-forward "^ \t\n")))))
+ (let ;; To make `end-of-line' and etc. to ignore fields.
+ ((inhibit-field-text-motion t))
+ (sort-fields-1 field beg end
+ (function (lambda ()
+ (sort-skip-fields field)
+ nil))
+ (function (lambda () (skip-chars-forward "^ \t\n"))))))
(defun sort-fields-1 (field beg end startkeyfun endkeyfun)
(let ((tbl (syntax-table)))
;; using negative prefix arg to mean "reverse" is now inconsistent with
;; other sort-.*fields functions but then again this was before, since it
;; didn't use the magnitude of the arg to specify anything.
- (interactive "P\nsRegexp specifying records to sort:
+ (interactive "P\nsRegexp specifying records to sort:
sRegexp specifying key within record: \nr")
(cond ((or (equal key-regexp "") (equal key-regexp "\\&"))
(setq key-regexp 0))
Use \\[untabify] to convert tabs to spaces before sorting."
(interactive "P\nr")
(save-excursion
- (let (beg1 end1 col-beg1 col-end1 col-start col-end)
+ (let ;; To make `end-of-line' and etc. to ignore fields.
+ ((inhibit-field-text-motion t)
+ beg1 end1 col-beg1 col-end1 col-start col-end)
(goto-char (min beg end))
(setq col-beg1 (current-column))
(beginning-of-line)
(setq col-end (max col-beg1 col-end1))
(if (search-backward "\t" beg1 t)
(error "sort-columns does not work with tabs -- use M-x untabify"))
- (if (not (or (eq system-type 'vax-vms)
- (text-properties-at beg1)
- (< (next-property-change beg1 nil end1) end1)))
+ (if (not (or (memq system-type '(vax-vms windows-nt))
+ (let ((pos beg1) plist fontified)
+ (catch 'found
+ (while (< pos end1)
+ (setq plist (text-properties-at pos))
+ (setq fontified (plist-get plist 'fontified))
+ (while (consp plist)
+ (unless (or (eq (car plist) 'fontified)
+ (and (eq (car plist) 'face)
+ fontified))
+ (throw 'found t))
+ (setq plist (cddr plist)))
+ (setq pos (next-property-change pos nil end1)))))))
;; Use the sort utility if we can; it is 4 times as fast.
- ;; Do not use it if there are any properties in the region,
- ;; since the sort utility would lose the properties.
+ ;; Do not use it if there are any non-font-lock properties
+ ;; in the region, since the sort utility would lose the
+ ;; properties.
(let ((sort-args (list (if reverse "-rt\n" "-t\n")
- (concat "+0." (int-to-string col-start))
- (concat "-0." (int-to-string col-end)))))
+ (format "-k1.%d,1.%d"
+ (1+ col-start)
+ (1+ col-end)))))
(when sort-fold-case
(push "-f" sort-args))
(apply #'call-process-region beg1 end1 "sort" t t nil sort-args))
- ;; On VMS, use Emacs's own facilities.
+ ;; On VMS and ms-windows, use Emacs's own facilities.
(save-excursion
(save-restriction
(narrow-to-region beg1 end1)
(provide 'sort)
+;;; arch-tag: fbac12be-2a7b-4c8a-9665-264d61f70bd9
;;; sort.el ends here