;;; ediff-diff.el --- diff-related utilities
-;;; Copyright (C) 1994, 1995 Free Software Foundation, Inc.
+
+;; Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
;; Author: Michael Kifer <kifer@cs.sunysb.edu>
;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; 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.
+
+;;; Code:
+
+(provide 'ediff-diff)
+
+;; compiler pacifier
+(defvar ediff-default-variant)
+
+(eval-when-compile
+ (let ((load-path (cons (expand-file-name ".") load-path)))
+ (or (featurep 'ediff-init)
+ (load "ediff-init.el" nil nil 'nosuffix))
+ (or (featurep 'ediff-util)
+ (load "ediff-util.el" nil nil 'nosuffix))
+ ))
+;; end pacifier
(require 'ediff-init)
+(defgroup ediff-diff nil
+ "Diff related utilities"
+ :prefix "ediff-"
+ :group 'ediff)
+
+
+;; The following functions needed for setting diff/diff3 options
+;; test if diff supports the --binary option
+(defsubst ediff-test-utility (diff-util option &optional files)
+ (zerop (apply 'call-process
+ (append (list diff-util nil nil nil option) files))))
+
+(defun ediff-diff-mandatory-option (diff-util)
+ (let ((file (if (boundp 'null-device) null-device "/dev/null")))
+ (cond ((not (memq system-type '(ms-dos windows-nt windows-95)))
+ "")
+ ((and (string= diff-util ediff-diff-program)
+ (ediff-test-utility
+ ediff-diff-program "--binary" (list file file)))
+ "--binary")
+ ((and (string= diff-util ediff-diff3-program)
+ (ediff-test-utility
+ ediff-diff3-program "--binary" (list file file file)))
+ "--binary")
+ (t ""))))
-(defvar ediff-shell
+;; make sure that mandatory options are added even if the user changes
+;; ediff-diff-options or ediff-diff3-options in the customization widget
+(defun ediff-reset-diff-options (symb val)
+ (let* ((diff-program
+ (if (eq symb 'ediff-diff-options)
+ ediff-diff-program
+ ediff-diff3-program))
+ (mandatory-option (ediff-diff-mandatory-option diff-program))
+ (spacer (if (string-equal mandatory-option "") "" " ")))
+ (set symb
+ (if (string-match mandatory-option val)
+ val
+ (concat mandatory-option spacer val)))
+ ))
+
+
+(defcustom ediff-shell
(cond ((eq system-type 'emx) "cmd") ; OS/2
+ ((memq system-type '(ms-dos windows-nt windows-95))
+ shell-file-name) ; no standard name on MS-DOS
((memq system-type '(vax-vms axp-vms)) "*dcl*") ; VMS
(t "sh")) ; UNIX
"*The shell used to run diff and patch. If user's .profile or
.cshrc files are set up correctly, any shell will do. However, some people
set $prompt or other things incorrectly, which leads to undesirable output
messages. These may cause Ediff to fail. In such a case, set ediff-shell
-to a shell that you are not using or, better, fix your shell's startup file.")
+to a shell that you are not using or, better, fix your shell's startup file."
+ :type 'string
+ :group 'ediff-diff)
+(defcustom ediff-cmp-program "cmp"
+ "*Utility to use to determine if two files are identical.
+It must return code 0, if its arguments are identical files."
+ :type 'string
+ :group 'ediff-diff)
-(defvar ediff-diff-program "diff"
- "*Program to use for generating the differential of the two files.")
-(defvar ediff-diff-options ""
+(defcustom ediff-cmp-options nil
+ "*Options to pass to `ediff-cmp-program'. If GNUS diff is used as
+`ediff-cmp-program', then the most useful options are `-I' RE, to
+ignore changes whose lines all match RE."
+ :type '(repeat string)
+ :group 'ediff-diff)
+
+(defcustom ediff-diff-program "diff"
+ "*Program to use for generating the differential of the two files."
+ :type 'string
+ :group 'ediff-diff)
+(defcustom ediff-diff-options ""
"*Options to pass to `ediff-diff-program'.
If diff\(1\) is used as `ediff-diff-program', then the most useful options are
`-w', to ignore space, and `-i', to ignore case of letters.
-At present, the option `-c' is ignored, since Ediff doesn't understand this
-type of output.")
+At present, the option `-c' is not allowed."
+ :set 'ediff-reset-diff-options
+ :type 'string
+ :group 'ediff-diff)
-(defvar ediff-custom-diff-program ediff-diff-program
+(defcustom ediff-custom-diff-program ediff-diff-program
"*Program to use for generating custom diff output for saving it in a file.
-This output is not used by Ediff internally.")
-(defvar ediff-custom-diff-options "-c"
- "*Options to pass to `ediff-custom-diff-program'.")
+This output is not used by Ediff internally."
+ :type 'string
+ :group 'ediff-diff)
+(defcustom ediff-custom-diff-options "-c"
+ "*Options to pass to `ediff-custom-diff-program'."
+ :type 'string
+ :group 'ediff-diff)
;;; Support for diff3
(defvar ediff-match-diff3-line "^====\\(.?\\)$"
"Pattern to match lines produced by diff3 that describe differences.")
-(defvar ediff-diff3-program "diff3"
+(defcustom ediff-diff3-program "diff3"
"*Program to be used for three-way comparison.
-Must produce output compatible with Unix's diff3 program.")
-(defvar ediff-diff3-options ""
- "*Options to pass to `ediff-diff3-program'.")
-(defvar ediff-diff3-ok-lines-regexp
- "^\\([1-3]:\\|====\\| \\|.*Warning *:\\|.*No newline\\|.*missing newline\\)"
+Must produce output compatible with Unix's diff3 program."
+ :type 'string
+ :group 'ediff-diff)
+(defcustom ediff-diff3-options ""
+ "*Options to pass to `ediff-diff3-program'."
+ :set 'ediff-reset-diff-options
+ :type 'string
+ :group 'ediff-diff)
+(defcustom ediff-diff3-ok-lines-regexp
+ "^\\([1-3]:\\|====\\| \\|.*Warning *:\\|.*No newline\\|.*missing newline\\|^\C-m$\\)"
"*Regexp that matches normal output lines from `ediff-diff3-program'.
-Lines that do not match are assumed to be error messages.")
+Lines that do not match are assumed to be error messages."
+ :type 'regexp
+ :group 'ediff-diff)
;; keeps the status of the current diff in 3-way jobs.
;; the status can be =diff(A), =diff(B), or =diff(A+B)
(ediff-defvar-local ediff-diff-status "" "")
-;; Support for patch
-
-(defvar ediff-patch-program "patch"
- "*Name of the program that applies patches.")
-(defvar ediff-patch-options ""
- "*Options to pass to ediff-patch-program.")
-
-;; The buffer of the patch file.
-(defvar ediff-patch-buf nil)
-;; The buffer where patch would display its diagnostics.
-(defvar ediff-patch-diagnostics nil)
-
;;; Fine differences
-(ediff-defvar-local ediff-auto-refine (if (ediff-window-display-p) 'on 'nix)
+(ediff-defvar-local ediff-auto-refine (if (ediff-has-face-support-p) 'on 'nix)
"If `on', Ediff auto-highlights fine diffs for the current diff region.
If `off', auto-highlighting is not used. If `nix', no fine diffs are shown
at all, unless the user force-refines the region by hitting `*'.
This variable can be set either in .emacs or toggled interactively.
Use `setq-default' if setting it in .emacs")
-(ediff-defvar-local ediff-auto-refine-limit 700
- "Auto-refine only those regions that are smaller than this number of bytes.")
+(ediff-defvar-local ediff-auto-refine-limit 1400
+ "*Auto-refine only the regions of this size \(in bytes\) or less.")
;;; General
(defvar ediff-diff-ok-lines-regexp
- "^\\([0-9,]+[acd][0-9,]+$\\|[<>] \\|---\\|.*Warning *:\\|.*No newline\\|.*missing newline\\)"
+ (concat
+ "^\\("
+ "[0-9,]+[acd][0-9,]+\C-m?$"
+ "\\|[<>] "
+ "\\|---"
+ "\\|.*Warning *:"
+ "\\|.*No +newline"
+ "\\|.*missing +newline"
+ "\\|^\C-m?$"
+ "\\)")
"Regexp that matches normal output lines from `ediff-diff-program'.
This is mostly lifted from Emerge, except that Ediff also considers
warnings and `Missing newline'-type messages to be normal output.
Lines that do not match are assumed to be error messages.")
-(defvar ediff-match-diff-line (let ((x "\\([0-9]+\\)\\(\\|,\\([0-9]+\\)\\)"))
- (concat "^" x "\\([acd]\\)" x "$"))
+(defvar ediff-match-diff-line
+ (let ((x "\\([0-9]+\\)\\(\\|,\\([0-9]+\\)\\)"))
+ (concat "^" x "\\([acd]\\)" x "\C-m?$"))
"Pattern to match lines produced by diff that describe differences.")
(ediff-defvar-local ediff-setup-diff-regions-function nil
;; ediff-setup-diff-regions-function, which can also have the value
;; ediff-setup-diff-regions3, which takes 4 arguments.
(defun ediff-setup-diff-regions (file-A file-B file-C)
- ;; Force all minibuffers to display ediff's messages.
- ;; When xemacs implements minibufferless frames, this won't be necessary
- (if ediff-xemacs-p (setq synchronize-minibuffers t))
+ (if (string-match "c" ediff-diff-options)
+ (error "Option `-c' is not allowed in `ediff-diff-options'"))
+ ;; create, if it doesn't exist
(or (ediff-buffer-live-p ediff-diff-buffer)
(setq ediff-diff-buffer
(get-buffer-create (ediff-unique-buffer-name "*ediff-diff" "*"))))
-
- (message "Computing differences ...")
- (ediff-exec-process ediff-diff-program ediff-diff-buffer 'synchronize
- ediff-diff-options file-A file-B)
-
+ (ediff-make-diff2-buffer ediff-diff-buffer file-A file-B)
(ediff-prepare-error-list ediff-diff-ok-lines-regexp ediff-diff-buffer)
- ;;(message "Computing differences ... done")
(ediff-convert-diffs-to-overlays
(ediff-extract-diffs
- ediff-diff-buffer ediff-word-mode ediff-narrow-bounds))
- )
+ ediff-diff-buffer ediff-word-mode ediff-narrow-bounds)))
+
+;; Run the diff program on FILE1 and FILE2 and put the output in DIFF-BUFFER
+;; Return the size of DIFF-BUFFER
+(defun ediff-make-diff2-buffer (diff-buffer file1 file2)
+ (let ((file1-size (ediff-file-size file1))
+ (file2-size (ediff-file-size file2)))
+ (cond ((not (numberp file1-size))
+ (message "Can't find file: %s"
+ (ediff-abbreviate-file-name file1))
+ (sit-for 2)
+ ;; 1 is an error exit code
+ 1)
+ ((not (numberp file2-size))
+ (message "Can't find file: %s"
+ (ediff-abbreviate-file-name file2))
+ (sit-for 2)
+ ;; 1 is an error exit code
+ 1)
+ ((< file1-size 0)
+ (message "Can't diff remote files: %s"
+ (ediff-abbreviate-file-name file1))
+ (sit-for 2)
+ ;; 1 is an error exit code
+ 1)
+ ((< file2-size 0)
+ (message "Can't diff remote file: %s"
+ (ediff-abbreviate-file-name file2))
+ (sit-for 2)
+ (message "")
+ ;; 1 is an error exit code
+ 1)
+ (t (message "Computing differences between %s and %s ..."
+ (file-name-nondirectory file1)
+ (file-name-nondirectory file2))
+ ;; this erases the diff buffer automatically
+ (ediff-exec-process ediff-diff-program
+ diff-buffer
+ 'synchronize
+ ediff-diff-options file1 file2)
+ (message "")
+ (ediff-with-current-buffer diff-buffer
+ (buffer-size))))))
+
+
;; If file-A/B/C is nil, do 2-way comparison with the non-nil buffers
;; This function works for diff3 and diff2 jobs
(get-buffer-create
(ediff-unique-buffer-name "*ediff-fine-diff" "*"))))
- (let (diff3-job diff-program ok-regexp diff-list)
+ (let (diff3-job diff-program diff-options ok-regexp diff-list)
(setq diff3-job ediff-3way-job
diff-program (if diff3-job ediff-diff3-program ediff-diff-program)
+ diff-options (if diff3-job ediff-diff3-options ediff-diff-options)
ok-regexp (if diff3-job
ediff-diff3-ok-lines-regexp
ediff-diff-ok-lines-regexp))
(ediff-message-if-verbose "Refining difference region %d ..." (1+ reg-num))
(ediff-exec-process diff-program ediff-fine-diff-buffer 'synchronize
+ diff-options
;; The shuffle below is because we can compare 3-way
;; or in several 2-way fashions, like fA fC, fA fB,
;; or fB fC.
) ; exec process
(ediff-prepare-error-list ok-regexp ediff-fine-diff-buffer)
- ;;(ediff-message-if-verbose
+ (ediff-message-if-verbose
+ "")
;; "Refining difference region %d ... done" (1+ reg-num))
(setq diff-list
;; fixup diff-list
(if diff3-job
(cond ((not file-A)
- (mapcar (function (lambda (elt)
- (aset elt 0 nil)
- (aset elt 1 nil)))
+ (mapcar (lambda (elt)
+ (aset elt 0 nil)
+ (aset elt 1 nil))
(cdr diff-list)))
((not file-B)
- (mapcar (function (lambda (elt)
- (aset elt 2 nil)
- (aset elt 3 nil)))
+ (mapcar (lambda (elt)
+ (aset elt 2 nil)
+ (aset elt 3 nil))
(cdr diff-list)))
((not file-C)
- (mapcar (function (lambda (elt)
- (aset elt 4 nil)
- (aset elt 5 nil)))
+ (mapcar (lambda (elt)
+ (aset elt 4 nil)
+ (aset elt 5 nil))
(cdr diff-list)))
))
(setq ediff-error-buffer
(get-buffer-create (ediff-unique-buffer-name
"*ediff-errors" "*"))))
- (ediff-eval-in-buffer ediff-error-buffer
+ (ediff-with-current-buffer ediff-error-buffer
(erase-buffer)
- (insert (ediff-eval-in-buffer diff-buff (buffer-string)))
+ (insert (ediff-with-current-buffer diff-buff (buffer-string)))
(goto-char (point-min))
(delete-matching-lines ok-regexp)
(if (memq system-type '(vax-vms axp-vms))
(delete-matching-lines "^$")))
;; If diff reports errors, show them then quit.
- (if (/= 0 (ediff-eval-in-buffer ediff-error-buffer (buffer-size)))
+ (if (/= 0 (ediff-with-current-buffer ediff-error-buffer (buffer-size)))
(let ((ctl-buf ediff-control-buffer)
(error-buf ediff-error-buffer))
(ediff-skip-unsuitable-frames)
(ediff-get-value-according-to-buffer-type 'B bounds))))
;; reset point in buffers A/B/C
- (ediff-eval-in-buffer A-buffer
+ (ediff-with-current-buffer A-buffer
(goto-char (if shift-A shift-A (point-min))))
- (ediff-eval-in-buffer B-buffer
+ (ediff-with-current-buffer B-buffer
(goto-char (if shift-B shift-B (point-min))))
(if (ediff-buffer-live-p C-buffer)
- (ediff-eval-in-buffer C-buffer
+ (ediff-with-current-buffer C-buffer
(goto-char (point-min))))
- (ediff-eval-in-buffer diff-buffer
+ (ediff-with-current-buffer diff-buffer
(goto-char (point-min))
(while (re-search-forward ediff-match-diff-line nil t)
(let* ((a-begin (string-to-int (buffer-substring (match-beginning 1)
b-prev b-end
c-prev c-end)
;; else convert lines to points
- (ediff-eval-in-buffer A-buffer
+ (ediff-with-current-buffer A-buffer
(forward-line (- a-begin a-prev))
(setq a-begin-pt (point))
(forward-line (- a-end a-begin))
(setq a-end-pt (point)
a-prev a-end))
- (ediff-eval-in-buffer B-buffer
+ (ediff-with-current-buffer B-buffer
(forward-line (- b-begin b-prev))
(setq b-begin-pt (point))
(forward-line (- b-end b-begin))
(setq b-end-pt (point)
b-prev b-end))
(if (ediff-buffer-live-p C-buffer)
- (ediff-eval-in-buffer C-buffer
+ (ediff-with-current-buffer C-buffer
(forward-line (- c-begin c-prev))
(setq c-begin-pt (point))
(forward-line (- c-end c-begin))
)))
)))
- ))) ; end ediff-eval-in-buffer
+ ))) ; end ediff-with-current-buffer
diff-list
))
(if ediff-merge-job
(setq ediff-state-of-merge
(vconcat
- (mapcar (function
- (lambda (elt)
- (let ((state-of-merge (aref elt 9))
- (state-of-ancestor (aref elt 10)))
- (vector
- (if state-of-merge (format "%S" state-of-merge))
- state-of-ancestor))))
+ (mapcar (lambda (elt)
+ (let ((state-of-merge (aref elt 9))
+ (state-of-ancestor (aref elt 10)))
+ (vector
+ ;; state of merge: prefers/default-A/B or combined
+ (if state-of-merge (format "%S" state-of-merge))
+ ;; whether the ancestor region is empty
+ state-of-ancestor)))
;; the first elt designates type of list
(cdr diff-list))
)))
(setq total-diffs (length diff-list))
;; shift, if necessary
- (ediff-eval-in-buffer buff (setq pt-saved shift))
+ (ediff-with-current-buffer buff (setq pt-saved shift))
(while diff-list
(setq current-diff (1+ current-diff)
;; convert word numbers to points, if necessary
(if (eq diff-list-type 'words)
(progn
- (ediff-eval-in-buffer buff (goto-char pt-saved))
+ (ediff-with-current-buffer buff (goto-char pt-saved))
(setq begin (ediff-goto-word (1+ begin) buff)
end (ediff-goto-word end buff 'end))
(if (> end limit) (setq end limit))
(if (> begin end) (setq begin end))
- (setq pt-saved (ediff-eval-in-buffer buff (point)))))
+ (setq pt-saved (ediff-with-current-buffer buff (point)))))
(setq overlay (ediff-make-bullet-proof-overlay begin end buff))
- ;; Priorities of overlays should be equal in all ediff control
- ;; panel buffers. Otherwise it won't work due to Emacs
- ;; bug, as insert-in-front-hooks will be called
- ;; only on behalf of the buffer with higher priority.
(ediff-overlay-put overlay 'priority ediff-shadow-overlay-priority)
(ediff-overlay-put overlay 'ediff-diff-num current-diff)
- (ediff-overlay-put
- overlay 'insert-in-front-hooks '(ediff-insert-in-front))
- (if (and (ediff-window-display-p)
+ (if (and (ediff-has-face-support-p)
ediff-use-faces ediff-highlight-all-diffs)
(ediff-set-overlay-face
overlay (ediff-background-face buf-type current-diff)))
(if (= 0 (mod current-diff 10))
(message "Buffer %S: Processing difference region %d of %d"
buf-type current-diff total-diffs))
- ;; record all overlays for this difference
- ;; the second elt, nil, is a place holder for the fine diff vector.
- ;; the third elt, nil, is a place holder for no-fine-diffs flag.
+ ;; Record all overlays for this difference.
+ ;; The 2-d elt, nil, is a place holder for the fine diff vector.
+ ;; The 3-d elt, nil, is a place holder for no-fine-diffs flag.
+ ;; The 4-th elt says which diff region is different from the other two
+ ;; (3-way jobs only).
(setq diff-overlay-list
(nconc
diff-overlay-list
(cdr diff-list))
) ; while
- (set (intern (format "ediff-difference-vector-%S" buf-type))
+ (set (ediff-get-symbol-from-alist buf-type ediff-difference-vector-alist)
(vconcat diff-overlay-list))
))
(or n (setq n ediff-current-difference))
(if (< ediff-number-of-differences 1)
- (error "No differences found"))
+ (error ediff-NO-DIFFERENCES))
(if ediff-word-mode
(setq flag 'skip
(whitespace-C (ediff-whitespace-diff-region-p n 'C))
cumulative-fine-diff-length)
- (cond ((and (eq flag 'noforce) (ediff-get-fine-diff-vector n 'A))
- ;; don't compute fine diffs if diff vector exists
- (if (ediff-no-fine-diffs-p n)
- (ediff-message-if-verbose
- "Only white-space differences in region %d" (1+ n))))
- ;; If one of the regions is empty (or 2 in 3way comparison)
+ (cond ;; If one of the regions is empty (or 2 in 3way comparison)
;; then don't refine.
;; If the region happens to be entirely whitespace or empty then
;; mark as such.
(empty-B 'B)
(empty-C 'C)))
)
- ;; if all regions happen to be whitespace, indicate this
+ ;; if all regions happen to be whitespace
(if (and whitespace-A whitespace-B whitespace-C)
+ ;; mark as space only
(ediff-mark-diff-as-space-only n t)
+ ;; if some regions are white and others don't, then mark as
+ ;; non-white-space-only
(ediff-mark-diff-as-space-only n nil)))
+
+ ;; don't compute fine diffs if diff vector exists
+ ((and (eq flag 'noforce) (ediff-get-fine-diff-vector n 'A))
+ (if (ediff-no-fine-diffs-p n)
+ (message
+ "Only white-space differences in region %d %s"
+ (1+ n)
+ (cond ((eq (ediff-no-fine-diffs-p n) 'A)
+ "in buffers B & C")
+ ((eq (ediff-no-fine-diffs-p n) 'B)
+ "in buffers A & C")
+ ((eq (ediff-no-fine-diffs-p n) 'C)
+ "in buffers A & B")
+ (t "")))))
;; don't compute fine diffs for this region
((eq flag 'skip)
(or (ediff-get-fine-diff-vector n 'A)
(memq ediff-auto-refine '(off nix))
(ediff-message-if-verbose
- "Region %d exceeds auto-refine limit. `%s' force-refines"
+ "Region %d exceeds the auto-refinement limit. Type `%s' to refine"
(1+ n)
(substitute-command-keys
"\\[ediff-make-or-kill-fine-diffs]")
((and ediff-3way-job whitespace-B)
(ediff-setup-fine-diff-regions file-A nil file-C n))
((and ediff-3way-job
- (or whitespace-C
- (and ediff-merge-job
- (ediff-looks-like-combined-merge n))))
+ ;; In merge-jobs, whitespace-C is t, since
+ ;; ediff-empty-diff-region-p returns t in this case
+ whitespace-C)
(ediff-setup-fine-diff-regions file-A file-B nil n))
(t
(ediff-setup-fine-diff-regions file-A file-B file-C n)))
(setq cumulative-fine-diff-length
(+ (length (ediff-get-fine-diff-vector n 'A))
- (length (ediff-get-fine-diff-vector n 'B))
- (if file-C
- (length
- (ediff-get-fine-diff-vector n 'C))
- 0)))
+ (length (ediff-get-fine-diff-vector n 'B))
+ ;; in merge jobs, the merge buffer is never refined
+ (if (and file-C (not ediff-merge-job))
+ (length (ediff-get-fine-diff-vector n 'C))
+ 0)))
(cond ((or
;; all regions are white space
(ediff-message-if-verbose
"Only white-space differences in region %d" (1+ n)))
((eq cumulative-fine-diff-length 0)
- (ediff-mark-diff-as-space-only n nil)
(ediff-message-if-verbose
"Only white-space differences in region %d %s"
(1+ n)
- (cond (whitespace-A "in buffers B & C")
- (whitespace-B "in buffers A & C")
- (whitespace-C "in buffers A & B"))))
+ (cond (whitespace-A (ediff-mark-diff-as-space-only n 'A)
+ "in buffers B & C")
+ (whitespace-B (ediff-mark-diff-as-space-only n 'B)
+ "in buffers A & C")
+ (whitespace-C (ediff-mark-diff-as-space-only n 'C)
+ "in buffers A & B"))))
(t
(ediff-mark-diff-as-space-only n nil)))
)
;; if fine diff vector is not set for diff N, then do nothing
(defun ediff-set-fine-diff-properties (n &optional default)
- (or (not (ediff-window-display-p))
+ (or (not (ediff-has-face-support-p))
(< n 0)
(>= n ediff-number-of-differences)
- ;; in a window system, set faces and priorities of fine overlays
+ ;; when faces are supported, set faces and priorities of fine overlays
(progn
(ediff-set-fine-diff-properties-in-one-buffer 'A n default)
(ediff-set-fine-diff-properties-in-one-buffer 'B n default)
(face (if default
'default
(face-name
- (intern (format "ediff-fine-diff-face-%S" buf-type)))))
+ (ediff-get-symbol-from-alist
+ buf-type ediff-fine-diff-face-alist))))
(priority (if default
0
(1+ (or (ediff-overlay-get
(symbol-value
- (intern
- (format
- "ediff-current-diff-overlay-%S" buf-type)))
+ (ediff-get-symbol-from-alist
+ buf-type
+ ediff-current-diff-overlay-alist))
'priority)
0)))))
- (mapcar
- (function (lambda (overl)
- (ediff-set-overlay-face overl face)
- (ediff-overlay-put overl 'priority priority)))
- fine-diff-vector)))
+ (mapcar (lambda (overl)
+ (ediff-set-overlay-face overl face)
+ (ediff-overlay-put overl 'priority priority))
+ fine-diff-vector)))
-;; This assumes buffer C and that the region looks like a combination of
-;; regions in buffer A and C.
+;; Set overlays over the regions that denote delimiters
(defun ediff-set-fine-overlays-for-combined-merge (diff-list reg-num)
- (let (overlay1 overlay2 overlay3)
- (setq overlay1 (ediff-make-bullet-proof-overlay (nth 0 diff-list)
- (nth 1 diff-list)
- ediff-buffer-C)
- overlay2 (ediff-make-bullet-proof-overlay (nth 2 diff-list)
- (nth 3 diff-list)
- ediff-buffer-C)
- overlay3 (ediff-make-bullet-proof-overlay (nth 4 diff-list)
- (nth 5 diff-list)
- ediff-buffer-C))
- (ediff-set-fine-diff-vector reg-num 'C (vector overlay1 overlay2 overlay3))
+ (let (overlay overlay-list)
+ (while diff-list
+ (condition-case nil
+ (setq overlay
+ (ediff-make-bullet-proof-overlay
+ (nth 0 diff-list) (nth 1 diff-list) ediff-buffer-C))
+ (error ""))
+ (setq overlay-list (cons overlay overlay-list))
+ (if (> (length diff-list) 1)
+ (setq diff-list (cdr (cdr diff-list)))
+ (error "ediff-set-fine-overlays-for-combined-merge: corrupt list of
+delimiter regions"))
+ )
+ (setq overlay-list (reverse overlay-list))
+ (ediff-set-fine-diff-vector
+ reg-num 'C (apply 'vector overlay-list))
))
(ediff-clear-fine-differences-in-one-buffer region-num buf-type)
(setq diff-list (cdr diff-list)) ; discard list type (words or points)
- (ediff-eval-in-buffer buff (goto-char reg-start))
+ (ediff-with-current-buffer buff (goto-char reg-start))
;; if it is a combined merge then set overlays in buff C specially
(if (and ediff-merge-job (eq buf-type 'C)
(ediff-get-value-according-to-buffer-type 'C bounds)))))
;; reset point in buffers A, B, C
- (ediff-eval-in-buffer A-buffer
+ (ediff-with-current-buffer A-buffer
(goto-char (if shift-A shift-A (point-min))))
- (ediff-eval-in-buffer B-buffer
+ (ediff-with-current-buffer B-buffer
(goto-char (if shift-B shift-B (point-min))))
(if three-way-comp
- (ediff-eval-in-buffer C-buffer
+ (ediff-with-current-buffer C-buffer
(goto-char (if shift-C shift-C (point-min)))))
(if (ediff-buffer-live-p anc-buffer)
- (ediff-eval-in-buffer anc-buffer
+ (ediff-with-current-buffer anc-buffer
(goto-char (point-min))))
- (ediff-eval-in-buffer diff-buffer
+ (ediff-with-current-buffer diff-buffer
(goto-char (point-min))
(while (re-search-forward ediff-match-diff3-line nil t)
;; leave point after matched line
(beginning-of-line 2)
(let ((agreement (buffer-substring (match-beginning 1) (match-end 1))))
- ;; if the A and B files are the same and not 3way-comparison,
+ ;; if the files A and B are the same and not 3way-comparison,
;; ignore the difference
(if (or three-way-comp (not (string-equal agreement "3")))
(let* ((a-begin (car (ediff-get-diff3-group "1")))
b-prev b-end
c-prev c-end)
;; else convert lines to points
- (ediff-eval-in-buffer A-buffer
+ (ediff-with-current-buffer A-buffer
(forward-line (- a-begin a-prev))
(setq a-begin-pt (point))
(forward-line (- a-end a-begin))
(setq a-end-pt (point)
a-prev a-end))
- (ediff-eval-in-buffer B-buffer
+ (ediff-with-current-buffer B-buffer
(forward-line (- b-begin b-prev))
(setq b-begin-pt (point))
(forward-line (- b-end b-begin))
(setq b-end-pt (point)
b-prev b-end))
- (ediff-eval-in-buffer C-buffer
+ (ediff-with-current-buffer C-buffer
(forward-line (- c-begin c-prev))
(setq c-begin-pt (point))
(forward-line (- c-end c-begin))
(setq c-end-pt (point)
c-prev c-end))
(if (ediff-buffer-live-p anc-buffer)
- (ediff-eval-in-buffer anc-buffer
+ (ediff-with-current-buffer anc-buffer
(forward-line (- c-or-anc-begin anc-prev))
(setq anc-begin-pt (point))
(forward-line (- c-or-anc-end c-or-anc-begin))
)))
))
- ))) ; end ediff-eval-in-buffer
+ ))) ; end ediff-with-current-buffer
diff-list
))
;; File-C is either the third file to compare (in case of 3-way comparison)
;; or it is the ancestor file.
(defun ediff-setup-diff-regions3 (file-A file-B file-C)
-
- ;; force all minibuffers to display ediff's messages.
- ;; when xemacs implements minibufferless frames, this won't be necessary
- (if ediff-xemacs-p (setq synchronize-minibuffers t))
-
(or (ediff-buffer-live-p ediff-diff-buffer)
(setq ediff-diff-buffer
(get-buffer-create (ediff-unique-buffer-name "*ediff-diff" "*"))))
))
-;; Execute PROGRAM asynchronously, unless OS/2 or unless SYNCH is non-nil.
-;; BUFFER must be a buffer object, and must be alive.
-;; All arguments in ARGS must be strings. The first arg may be a blank string,
-;; in which case we delete it from ARGS list. We also delete nil from args.
-(defun ediff-exec-process (program buffer synch &rest args)
- (let ((data (match-data)))
- (if (string-match "^[ \t]*$" (car args)) ; delete blank string
- (setq args (cdr args)))
- (setq args (delq nil args)) ; delete nil from arguments
- (setq args (ediff-split-string (mapconcat 'identity args " ")))
+;; Execute PROGRAM asynchronously, unless OS/2, Windows-*, or DOS, or unless
+;; SYNCH is non-nil. BUFFER must be a buffer object, and must be alive. The
+;; OPTIONS arg is a list of options to pass to PROGRAM. It may be a blank
+;; string. All elements in FILES must be strings. We also delete nil from
+;; args.
+(defun ediff-exec-process (program buffer synch options &rest files)
+ (let ((data (match-data))
+ (coding-system-for-read 'no-conversion)
+ args)
+ (setq args (append (split-string options) files))
+ (setq args (delete "" (delq nil args))) ; delete nil and "" from arguments
+ ;; the --binary option, if present, should be used only for buffer jobs
+ ;; or for refining the differences
+ (or (string-match "buffer" (symbol-name ediff-job-name))
+ (eq buffer ediff-fine-diff-buffer)
+ (setq args (delete "--binary" args)))
(unwind-protect
(let ((directory default-directory)
proc)
(set-buffer buffer)
(erase-buffer)
(setq default-directory directory)
- (if (or (eq system-type 'emx) synch)
- ;; In OS/2 do it synchronously, since OS/2 doesn't let us
+ (if (or (memq system-type '(emx ms-dos windows-nt windows-95))
+ synch)
+ ;; In OS/2 (emx) do it synchronously, since OS/2 doesn't let us
;; delete files used by other processes. Thus, in ediff-buffers
;; and similar functions, we can't delete temp files because
;; they might be used by the asynch process that computes
;; custom diffs. So, we have to wait till custom diff
;; subprocess is done.
+ ;; Similarly for Windows-*
+ ;; In DOS, must synchronize because DOS doesn't have
+ ;; asynchronous processes.
(apply 'call-process program nil buffer nil args)
;; On other systems, do it asynchronously.
(setq proc (get-buffer-process buffer))
)))
(store-match-data data))))
-;; This is shell-command-filter from simple.el in FSF Emacs.
+;; This is shell-command-filter from simple.el in Emacs.
;; Copied here because XEmacs doesn't have it.
(defun ediff-process-filter (proc string)
;; Do save-excursion by hand so that we can leave point numerically unchanged
"*Characters constituting white space.
These characters are ignored when differing regions are split into words.")
-;;(defvar ediff-word-1 "a-zA-Z---_`'.?!:"
(defvar ediff-word-1 "a-zA-Z---_"
"*Characters that constitute words of type 1.
More precisely, [ediff-word-1] is a regexp that matches type 1 words.
"Move point one word forward.
There are four types of words, each of which consists entirely of
characters in `ediff-word-1', `ediff-word-2', `ediff-word-3', or
-`ediff-word-4'. Words are recognized by passing these in turn as the
-argument to `skip-chars-forward'."
- (or (> (skip-chars-forward ediff-word-1) 0)
+`ediff-word-4'. Words are recognized by passing these one after another as
+arguments to `skip-chars-forward'."
+ (or (> (+ (skip-chars-forward ediff-word-1)
+ (skip-syntax-forward "w"))
+ 0)
(> (skip-chars-forward ediff-word-2) 0)
(> (skip-chars-forward ediff-word-3) 0)
(> (skip-chars-forward ediff-word-4) 0)
))
+
(defun ediff-wordify (beg end in-buffer out-buffer &optional control-buf)
- (let (sv-point string)
+ (let (inbuf-syntax-tbl sv-point string)
(save-excursion
(set-buffer in-buffer)
- (setq string (buffer-substring beg end))
+ (setq inbuf-syntax-tbl (syntax-table))
+ (setq string (buffer-substring-no-properties beg end))
(set-buffer out-buffer)
+ ;; Make sure that temp buff syntax table is the same a the original buf
+ ;; syntax tbl, because we use ediff-forward-word in both and
+ ;; ediff-forward-word depends on the syntax classes of characters.
+ (set-syntax-table inbuf-syntax-tbl)
(erase-buffer)
(insert string)
(goto-char (point-min))
;; different invocations
(if control-buf
(funcall
- (ediff-eval-in-buffer control-buf ediff-forward-word-function))
+ (ediff-with-current-buffer
+ control-buf ediff-forward-word-function))
(funcall ediff-forward-word-function))
(setq sv-point (point))
(skip-chars-forward ediff-whitespace)
(defun ediff-goto-word (n buf &optional flag)
;; remember val ediff-forward-word-function has in ctl buf
(let ((fwd-word-fun ediff-forward-word-function))
- (ediff-eval-in-buffer buf
+ (ediff-with-current-buffer buf
(skip-chars-forward ediff-whitespace)
(while (> n 1)
(funcall fwd-word-fun)
(funcall fwd-word-fun))
(point))))
+(defun ediff-same-file-contents (f1 f2)
+ "T if F1 and F2 have identical contents."
+ (let ((res
+ (apply 'call-process ediff-cmp-program nil nil nil
+ (append ediff-cmp-options (list f1 f2)))))
+ (and (numberp res) (eq res 0))))
-(provide 'ediff-diff)
+
+;;; Local Variables:
+;;; eval: (put 'ediff-defvar-local 'lisp-indent-hook 'defun)
+;;; eval: (put 'ediff-with-current-buffer 'lisp-indent-hook 1)
+;;; eval: (put 'ediff-with-current-buffer 'edebug-form-spec '(form body))
+;;; End:
;; ediff-diff.el ends here
HCoop / bpt / emacs.git / blobdiff