Commit | Line | Data |
---|---|---|
8343426b | 1 | ;;; ediff-init.el --- Macros, variables, and defsubsts used by Ediff |
b578f267 | 2 | |
475de6f4 | 3 | ;; Copyright (C) 1994, 1995, 1996, 1997, 2000 Free Software Foundation, Inc. |
475f9031 KH |
4 | |
5 | ;; Author: Michael Kifer <kifer@cs.sunysb.edu> | |
6 | ||
7 | ;; This file is part of GNU Emacs. | |
8 | ||
9 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
10 | ;; it under the terms of the GNU General Public License as published by | |
11 | ;; the Free Software Foundation; either version 2, or (at your option) | |
12 | ;; any later version. | |
13 | ||
14 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
15 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | ;; GNU General Public License for more details. | |
18 | ||
19 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
20 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
21 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
22 | ;; Boston, MA 02111-1307, USA. | |
475f9031 | 23 | |
b578f267 | 24 | ;;; Code: |
475f9031 | 25 | |
bbe6126c MK |
26 | ;; Start compiler pacifier |
27 | (defvar ediff-metajob-name) | |
28 | (defvar ediff-meta-buffer) | |
29 | (defvar pm-color-alist) | |
30 | (defvar ediff-grab-mouse) | |
31 | (defvar ediff-mouse-pixel-position) | |
32 | (defvar ediff-mouse-pixel-threshold) | |
33 | (defvar ediff-whitespace) | |
34 | (defvar ediff-multiframe) | |
2eb4bdca | 35 | (defvar ediff-use-toolbar-p) |
ddc90f39 MK |
36 | |
37 | (and noninteractive | |
38 | (eval-when-compile | |
39 | (load "ange-ftp" 'noerror))) | |
bbe6126c MK |
40 | ;; end pacifier |
41 | ||
41d25ad0 | 42 | ;; Is it XEmacs? |
8343426b | 43 | (defconst ediff-xemacs-p (string-match "XEmacs" emacs-version)) |
41d25ad0 KH |
44 | ;; Is it Emacs? |
45 | (defconst ediff-emacs-p (not ediff-xemacs-p)) | |
bbe6126c MK |
46 | |
47 | (defvar ediff-force-faces nil | |
48 | "If t, Ediff will think that it is running on a display that supports faces. | |
49 | This is provided as a temporary relief for users of face-capable displays | |
50 | that Ediff doesn't know about.") | |
51 | ||
41d25ad0 KH |
52 | ;; Are we running as a window application or on a TTY? |
53 | (defsubst ediff-device-type () | |
54 | (if ediff-emacs-p | |
55 | window-system | |
56 | (device-type (selected-device)))) | |
bbe6126c | 57 | |
41d25ad0 | 58 | ;; in XEmacs: device-type is tty on tty and stream in batch. |
4ae69eac MK |
59 | (defun ediff-window-display-p () |
60 | (and (ediff-device-type) (not (memq (ediff-device-type) '(tty pc stream))))) | |
61 | ||
62 | ;; test if supports faces | |
4ae69eac MK |
63 | (defun ediff-has-face-support-p () |
64 | (cond ((ediff-window-display-p)) | |
65 | (ediff-force-faces) | |
d396e521 MK |
66 | ((ediff-color-display-p)) |
67 | (ediff-emacs-p (memq (ediff-device-type) '(pc))) | |
4ae69eac | 68 | (ediff-xemacs-p (memq (ediff-device-type) '(tty pc))))) |
bf5d92c5 | 69 | |
2eb4bdca MK |
70 | (defun ediff-has-toolbar-support-p () |
71 | (and ediff-xemacs-p | |
72 | (featurep 'toolbar) | |
73 | (console-on-window-system-p))) | |
74 | ||
75 | (defun ediff-use-toolbar-p () | |
76 | (and (ediff-has-toolbar-support-p) ;Can it do it ? | |
77 | (boundp 'ediff-use-toolbar-p) | |
78 | ediff-use-toolbar-p)) ;Does the user want it ? | |
79 | ||
acce6d21 | 80 | ;; Defines SYMBOL as an advertised local variable. |
bbe6126c MK |
81 | ;; Performs a defvar, then executes `make-variable-buffer-local' on |
82 | ;; the variable. Also sets the `permanent-local' property, | |
83 | ;; so that `kill-all-local-variables' (called by major-mode setting | |
84 | ;; commands) won't destroy Ediff control variables. | |
acce6d21 | 85 | ;; |
bbe6126c | 86 | ;; Plagiarised from `emerge-defvar-local' for XEmacs. |
acce6d21 | 87 | (defmacro ediff-defvar-local (var value doc) |
086171bf MK |
88 | `(progn |
89 | (defvar ,var ,value ,doc) | |
90 | (make-variable-buffer-local ',var) | |
91 | (put ',var 'permanent-local t))) | |
acce6d21 | 92 | |
bbe6126c MK |
93 | |
94 | ||
95 | ;; Variables that control each Ediff session---local to the control buffer. | |
96 | ||
97 | ;; Mode variables | |
98 | ;; The buffer in which the A variant is stored. | |
99 | (ediff-defvar-local ediff-buffer-A nil "") | |
100 | ;; The buffer in which the B variant is stored. | |
101 | (ediff-defvar-local ediff-buffer-B nil "") | |
3af0304a | 102 | ;; The buffer in which the C variant is stored or where the merge buffer lives. |
bbe6126c MK |
103 | (ediff-defvar-local ediff-buffer-C nil "") |
104 | ;; Ancestor buffer | |
105 | (ediff-defvar-local ediff-ancestor-buffer nil "") | |
ddc90f39 | 106 | ;; The Ediff control buffer |
bbe6126c | 107 | (ediff-defvar-local ediff-control-buffer nil "") |
475f9031 | 108 | |
e756eb9f MK |
109 | |
110 | ;; Association between buff-type and ediff-buffer-* | |
111 | (defconst ediff-buffer-alist | |
112 | '((?A . ediff-buffer-A) | |
113 | (?B . ediff-buffer-B) | |
114 | (?C . ediff-buffer-C))) | |
115 | ||
475f9031 KH |
116 | ;;; Macros |
117 | (defmacro ediff-odd-p (arg) | |
086171bf | 118 | `(eq (logand ,arg 1) 1)) |
475f9031 KH |
119 | |
120 | (defmacro ediff-buffer-live-p (buf) | |
086171bf | 121 | `(and ,buf (get-buffer ,buf) (buffer-name (get-buffer ,buf)))) |
475f9031 KH |
122 | |
123 | (defmacro ediff-get-buffer (arg) | |
086171bf MK |
124 | `(cond ((eq ,arg 'A) ediff-buffer-A) |
125 | ((eq ,arg 'B) ediff-buffer-B) | |
126 | ((eq ,arg 'C) ediff-buffer-C) | |
127 | ((eq ,arg 'Ancestor) ediff-ancestor-buffer) | |
128 | )) | |
acce6d21 | 129 | |
475f9031 | 130 | (defmacro ediff-get-value-according-to-buffer-type (buf-type list) |
086171bf MK |
131 | `(cond ((eq ,buf-type 'A) (nth 0 ,list)) |
132 | ((eq ,buf-type 'B) (nth 1 ,list)) | |
133 | ((eq ,buf-type 'C) (nth 2 ,list)) | |
134 | )) | |
acce6d21 | 135 | |
475f9031 | 136 | (defmacro ediff-char-to-buftype (arg) |
086171bf MK |
137 | `(cond ((memq ,arg '(?a ?A)) 'A) |
138 | ((memq ,arg '(?b ?B)) 'B) | |
139 | ((memq ,arg '(?c ?C)) 'C) | |
140 | )) | |
e756eb9f | 141 | |
985d0dad | 142 | |
e756eb9f MK |
143 | ;; A-list is supposed to be of the form (A . symb) (B . symb)...) |
144 | ;; where the first part of any association is a buffer type and the second is | |
3af0304a MK |
145 | ;; an appropriate symbol. Given buffer-type, this function returns the |
146 | ;; symbol. This is used to avoid using `intern' | |
e756eb9f MK |
147 | (defsubst ediff-get-symbol-from-alist (buf-type alist) |
148 | (cdr (assoc buf-type alist))) | |
acce6d21 | 149 | |
e756eb9f MK |
150 | (defconst ediff-difference-vector-alist |
151 | '((A . ediff-difference-vector-A) | |
152 | (B . ediff-difference-vector-B) | |
153 | (C . ediff-difference-vector-C) | |
154 | (Ancestor . ediff-difference-vector-Ancestor))) | |
155 | ||
475f9031 | 156 | (defmacro ediff-get-difference (n buf-type) |
086171bf MK |
157 | `(aref |
158 | (symbol-value | |
159 | (ediff-get-symbol-from-alist | |
160 | ,buf-type ediff-difference-vector-alist)) | |
161 | ,n)) | |
acce6d21 | 162 | |
ddc90f39 | 163 | ;; Tell if it has been previously determined that the region has |
475f9031 KH |
164 | ;; no diffs other than the white space and newlines |
165 | ;; The argument, N, is the diff region number used by Ediff to index the | |
3af0304a | 166 | ;; diff vector. It is 1 less than the number seen by the user. |
ddc90f39 MK |
167 | ;; Returns: |
168 | ;; t if the diffs are whitespace in all buffers | |
169 | ;; 'A (in 3-buf comparison only) if there are only whitespace | |
170 | ;; diffs in bufs B and C | |
171 | ;; 'B (in 3-buf comparison only) if there are only whitespace | |
172 | ;; diffs in bufs A and C | |
173 | ;; 'C (in 3-buf comparison only) if there are only whitespace | |
174 | ;; diffs in bufs A and B | |
475f9031 | 175 | ;; |
3af0304a | 176 | ;; A Difference Vector has the form: |
475f9031 KH |
177 | ;; [diff diff diff ...] |
178 | ;; where each diff has the form: | |
3af0304a | 179 | ;; [overlay fine-diff-vector no-fine-diffs-flag state-of-difference] |
475f9031 | 180 | ;; fine-diff-vector is a vector [fine-diff fine-diff fine-diff ...] |
3af0304a MK |
181 | ;; no-fine-diffs-flag says if there are fine differences. |
182 | ;; state-of-difference is A, B, C, or nil, indicating which buffer is | |
183 | ;; different from the other two (used only in 3-way jobs). | |
475f9031 | 184 | (defmacro ediff-no-fine-diffs-p (n) |
086171bf | 185 | `(aref (ediff-get-difference ,n 'A) 2)) |
acce6d21 | 186 | |
475f9031 | 187 | (defmacro ediff-get-diff-overlay-from-diff-record (diff-rec) |
086171bf | 188 | `(aref ,diff-rec 0)) |
acce6d21 TTN |
189 | |
190 | (defmacro ediff-get-diff-overlay (n buf-type) | |
086171bf MK |
191 | `(ediff-get-diff-overlay-from-diff-record |
192 | (ediff-get-difference ,n ,buf-type))) | |
475f9031 KH |
193 | |
194 | (defmacro ediff-get-fine-diff-vector-from-diff-record (diff-rec) | |
086171bf | 195 | `(aref ,diff-rec 1)) |
acce6d21 | 196 | |
475f9031 | 197 | (defmacro ediff-set-fine-diff-vector (n buf-type fine-vec) |
086171bf | 198 | `(aset (ediff-get-difference ,n ,buf-type) 1 ,fine-vec)) |
acce6d21 | 199 | |
475f9031 | 200 | (defmacro ediff-get-state-of-diff (n buf-type) |
086171bf MK |
201 | `(if (ediff-buffer-live-p ediff-buffer-C) |
202 | (aref (ediff-get-difference ,n ,buf-type) 3))) | |
475f9031 | 203 | (defmacro ediff-set-state-of-diff (n buf-type val) |
086171bf | 204 | `(aset (ediff-get-difference ,n ,buf-type) 3 ,val)) |
3af0304a | 205 | |
475f9031 | 206 | (defmacro ediff-get-state-of-merge (n) |
086171bf MK |
207 | `(if ediff-state-of-merge |
208 | (aref (aref ediff-state-of-merge ,n) 0))) | |
475f9031 | 209 | (defmacro ediff-set-state-of-merge (n val) |
086171bf MK |
210 | `(if ediff-state-of-merge |
211 | (aset (aref ediff-state-of-merge ,n) 0 ,val))) | |
475f9031 | 212 | |
3af0304a | 213 | (defmacro ediff-get-state-of-ancestor (n) |
086171bf MK |
214 | `(if ediff-state-of-merge |
215 | (aref (aref ediff-state-of-merge ,n) 1))) | |
3af0304a | 216 | |
acce6d21 | 217 | ;; if flag is t, puts a mark on diff region saying that |
3af0304a | 218 | ;; the differences are in white space only. If flag is nil, |
475f9031 KH |
219 | ;; the region is marked as essential (i.e., differences are |
220 | ;; not just in the white space and newlines.) | |
221 | (defmacro ediff-mark-diff-as-space-only (n flag) | |
086171bf | 222 | `(aset (ediff-get-difference ,n 'A) 2 ,flag)) |
acce6d21 | 223 | |
475f9031 | 224 | (defmacro ediff-get-fine-diff-vector (n buf-type) |
086171bf MK |
225 | `(ediff-get-fine-diff-vector-from-diff-record |
226 | (ediff-get-difference ,n ,buf-type))) | |
acce6d21 | 227 | |
e756eb9f MK |
228 | ;; Macro to switch to BUFFER, evaluate BODY, returns to original buffer. |
229 | ;; Doesn't save the point and mark. | |
230 | ;; This is `with-current-buffer' with the added test for live buffers." | |
231 | (defmacro ediff-with-current-buffer (buffer &rest body) | |
086171bf | 232 | `(if (ediff-buffer-live-p ,buffer) |
e756eb9f | 233 | (save-current-buffer |
086171bf MK |
234 | (set-buffer ,buffer) |
235 | ,@body) | |
e756eb9f MK |
236 | (or (eq this-command 'ediff-quit) |
237 | (error ediff-KILLED-VITAL-BUFFER)) | |
086171bf | 238 | )) |
acce6d21 | 239 | |
475f9031 | 240 | |
8343426b MK |
241 | (defsubst ediff-multiframe-setup-p () |
242 | (and (ediff-window-display-p) ediff-multiframe)) | |
acce6d21 | 243 | |
475f9031 | 244 | (defmacro ediff-narrow-control-frame-p () |
086171bf MK |
245 | `(and (ediff-multiframe-setup-p) |
246 | (equal ediff-help-message ediff-brief-message-string))) | |
acce6d21 | 247 | |
475f9031 | 248 | (defmacro ediff-3way-comparison-job () |
086171bf MK |
249 | `(memq |
250 | ediff-job-name | |
251 | '(ediff-files3 ediff-buffers3))) | |
475f9031 | 252 | (ediff-defvar-local ediff-3way-comparison-job nil "") |
acce6d21 | 253 | |
475f9031 | 254 | (defmacro ediff-merge-job () |
086171bf MK |
255 | `(memq |
256 | ediff-job-name | |
257 | '(ediff-merge-files | |
258 | ediff-merge-buffers | |
259 | ediff-merge-files-with-ancestor | |
260 | ediff-merge-buffers-with-ancestor | |
261 | ediff-merge-revisions | |
262 | ediff-merge-revisions-with-ancestor))) | |
475f9031 KH |
263 | (ediff-defvar-local ediff-merge-job nil "") |
264 | ||
265 | (defmacro ediff-merge-with-ancestor-job () | |
086171bf MK |
266 | `(memq |
267 | ediff-job-name | |
268 | '(ediff-merge-files-with-ancestor | |
269 | ediff-merge-buffers-with-ancestor | |
270 | ediff-merge-revisions-with-ancestor))) | |
475f9031 KH |
271 | (ediff-defvar-local ediff-merge-with-ancestor-job nil "") |
272 | ||
273 | (defmacro ediff-3way-job () | |
086171bf | 274 | `(or ediff-3way-comparison-job ediff-merge-job)) |
475f9031 KH |
275 | (ediff-defvar-local ediff-3way-job nil "") |
276 | ||
277 | ;; A diff3 job is like a 3way job, but ediff-merge doesn't require the use | |
278 | ;; of diff3. | |
279 | (defmacro ediff-diff3-job () | |
086171bf MK |
280 | `(or ediff-3way-comparison-job |
281 | ediff-merge-with-ancestor-job)) | |
475f9031 | 282 | (ediff-defvar-local ediff-diff3-job nil "") |
acce6d21 | 283 | |
41d25ad0 | 284 | (defmacro ediff-windows-job () |
086171bf | 285 | `(memq ediff-job-name '(ediff-windows-wordwise ediff-windows-linewise))) |
41d25ad0 KH |
286 | (ediff-defvar-local ediff-windows-job nil "") |
287 | ||
475f9031 | 288 | (defmacro ediff-word-mode-job () |
086171bf | 289 | `(memq ediff-job-name '(ediff-windows-wordwise ediff-regions-wordwise))) |
475f9031 KH |
290 | (ediff-defvar-local ediff-word-mode-job nil "") |
291 | ||
41d25ad0 | 292 | (defmacro ediff-narrow-job () |
086171bf MK |
293 | `(memq ediff-job-name '(ediff-windows-wordwise |
294 | ediff-regions-wordwise | |
295 | ediff-windows-linewise | |
296 | ediff-regions-linewise))) | |
41d25ad0 KH |
297 | (ediff-defvar-local ediff-narrow-job nil "") |
298 | ||
8343426b MK |
299 | ;; Note: ediff-merge-directory-revisions-with-ancestor is not treated as an |
300 | ;; ancestor metajob, since it behaves differently. | |
301 | (defsubst ediff-ancestor-metajob (&optional metajob) | |
302 | (memq (or metajob ediff-metajob-name) | |
303 | '(ediff-merge-directories-with-ancestor | |
304 | ediff-merge-filegroups-with-ancestor))) | |
305 | (defsubst ediff-revision-metajob (&optional metajob) | |
306 | (memq (or metajob ediff-metajob-name) | |
acce6d21 | 307 | '(ediff-directory-revisions |
8343426b MK |
308 | ediff-merge-directory-revisions |
309 | ediff-merge-directory-revisions-with-ancestor))) | |
bbe6126c MK |
310 | (defsubst ediff-patch-metajob (&optional metajob) |
311 | (memq (or metajob ediff-metajob-name) | |
312 | '(ediff-multifile-patch))) | |
313 | ;; metajob involving only one group of files, such as multipatch or directory | |
314 | ;; revision | |
315 | (defsubst ediff-one-filegroup-metajob (&optional metajob) | |
8343426b | 316 | (or (ediff-revision-metajob metajob) |
bbe6126c | 317 | (ediff-patch-metajob metajob) |
8343426b MK |
318 | ;; add more here |
319 | )) | |
320 | (defsubst ediff-collect-diffs-metajob (&optional metajob) | |
4ae69eac MK |
321 | (memq (or metajob ediff-metajob-name) |
322 | '(ediff-directories | |
323 | ediff-directory-revisions | |
324 | ediff-merge-directories | |
325 | ediff-merge-directories-with-ancestor | |
326 | ediff-merge-directory-revisions | |
327 | ediff-merge-directory-revisions-with-ancestor | |
328 | ;; add more here | |
329 | ))) | |
92c51e07 MK |
330 | (defsubst ediff-merge-metajob (&optional metajob) |
331 | (memq (or metajob ediff-metajob-name) | |
332 | '(ediff-merge-directories | |
333 | ediff-merge-directories-with-ancestor | |
334 | ediff-merge-directory-revisions | |
335 | ediff-merge-directory-revisions-with-ancestor | |
acce6d21 | 336 | ediff-merge-filegroups-with-ancestor |
92c51e07 MK |
337 | ;; add more here |
338 | ))) | |
4ae69eac | 339 | |
8343426b MK |
340 | (defsubst ediff-metajob3 (&optional metajob) |
341 | (memq (or metajob ediff-metajob-name) | |
342 | '(ediff-merge-directories-with-ancestor | |
acce6d21 | 343 | ediff-merge-filegroups-with-ancestor |
8343426b MK |
344 | ediff-directories3 |
345 | ediff-filegroups3))) | |
346 | (defsubst ediff-comparison-metajob3 (&optional metajob) | |
347 | (memq (or metajob ediff-metajob-name) | |
348 | '(ediff-directories3 ediff-filegroups3))) | |
349 | ||
bf5d92c5 MK |
350 | ;; with no argument, checks if we are in ediff-control-buffer |
351 | ;; with argument, checks if we are in ediff-meta-buffer | |
352 | (defun ediff-in-control-buffer-p (&optional meta-buf-p) | |
353 | (and (boundp 'ediff-control-buffer) | |
354 | (eq (if meta-buf-p ediff-meta-buffer ediff-control-buffer) | |
355 | (current-buffer)))) | |
356 | ||
357 | (defsubst ediff-barf-if-not-control-buffer (&optional meta-buf-p) | |
358 | (or (ediff-in-control-buffer-p meta-buf-p) | |
8343426b MK |
359 | (error "%S: This command runs in Ediff Control Buffer only!" |
360 | this-command))) | |
361 | ||
328b4b70 MK |
362 | (defgroup ediff-highlighting nil |
363 | "Hilighting of difference regions in Ediff" | |
364 | :prefix "ediff-" | |
365 | :group 'ediff) | |
366 | ||
367 | (defgroup ediff-merge nil | |
368 | "Merging utilities" | |
369 | :prefix "ediff-" | |
370 | :group 'ediff) | |
371 | ||
372 | (defgroup ediff-hook nil | |
acce6d21 | 373 | "Hooks run by Ediff" |
328b4b70 MK |
374 | :prefix "ediff-" |
375 | :group 'ediff) | |
376 | ||
475f9031 KH |
377 | ;; Hook variables |
378 | ||
657f9cb8 MK |
379 | (defcustom ediff-before-setup-hook nil |
380 | "*Hooks to run before Ediff begins to set up windows and buffers. | |
381 | This hook can be used to save the previous window config, which can be restored | |
382 | on ediff-quit or ediff-suspend." | |
383 | :type 'hook | |
ca7d9565 | 384 | :version "21.1" |
acce6d21 | 385 | :group 'ediff-hook) |
1e70790f | 386 | (defcustom ediff-before-setup-windows-hook nil |
acce6d21 TTN |
387 | "*Hooks to run before Ediff sets its window configuration. |
388 | This hook is run every time when Ediff arranges its windows. | |
657f9cb8 MK |
389 | This happens each time Ediff detects that the windows were messed up by the |
390 | user." | |
1e70790f | 391 | :type 'hook |
acce6d21 | 392 | :group 'ediff-hook) |
1e70790f | 393 | (defcustom ediff-after-setup-windows-hook nil |
acce6d21 | 394 | "*Hooks to run after Ediff sets its window configuration. |
1e70790f MK |
395 | This can be used to set up control window or icon in a desired place." |
396 | :type 'hook | |
328b4b70 | 397 | :group 'ediff-hook) |
1e70790f | 398 | (defcustom ediff-before-setup-control-frame-hook nil |
475f9031 KH |
399 | "*Hooks run before setting up the frame to display Ediff Control Panel. |
400 | Can be used to change control frame parameters to position it where it | |
1e70790f MK |
401 | is desirable." |
402 | :type 'hook | |
328b4b70 | 403 | :group 'ediff-hook) |
1e70790f | 404 | (defcustom ediff-after-setup-control-frame-hook nil |
475f9031 | 405 | "*Hooks run after setting up the frame to display Ediff Control Panel. |
1e70790f MK |
406 | Can be used to move the frame where it is desired." |
407 | :type 'hook | |
328b4b70 | 408 | :group 'ediff-hook) |
1e70790f | 409 | (defcustom ediff-startup-hook nil |
657f9cb8 | 410 | "*Hooks to run in the control buffer after Ediff has been set up and is ready for the job." |
1e70790f | 411 | :type 'hook |
328b4b70 | 412 | :group 'ediff-hook) |
1e70790f MK |
413 | (defcustom ediff-select-hook nil |
414 | "*Hooks to run after a difference has been selected." | |
415 | :type 'hook | |
328b4b70 | 416 | :group 'ediff-hook) |
1e70790f MK |
417 | (defcustom ediff-unselect-hook nil |
418 | "*Hooks to run after a difference has been unselected." | |
419 | :type 'hook | |
328b4b70 | 420 | :group 'ediff-hook) |
1e70790f | 421 | (defcustom ediff-prepare-buffer-hook nil |
acce6d21 TTN |
422 | "*Hooks run after buffers A, B, and C are set up. |
423 | For each buffer, the hooks are run with that buffer made current." | |
1e70790f | 424 | :type 'hook |
328b4b70 | 425 | :group 'ediff-hook) |
1e70790f MK |
426 | (defcustom ediff-load-hook nil |
427 | "*Hook run after Ediff is loaded. Can be used to change defaults." | |
428 | :type 'hook | |
328b4b70 | 429 | :group 'ediff-hook) |
acce6d21 | 430 | |
1e70790f | 431 | (defcustom ediff-mode-hook nil |
acce6d21 | 432 | "*Hook run just after ediff-mode is set up in the control buffer. |
3af0304a | 433 | This is done before any windows or frames are created. One can use it to |
1e70790f MK |
434 | set local variables that determine how the display looks like." |
435 | :type 'hook | |
328b4b70 | 436 | :group 'ediff-hook) |
1e70790f MK |
437 | (defcustom ediff-keymap-setup-hook nil |
438 | "*Hook run just after the default bindings in Ediff keymap are set up." | |
439 | :type 'hook | |
328b4b70 | 440 | :group 'ediff-hook) |
acce6d21 | 441 | |
1e70790f MK |
442 | (defcustom ediff-display-help-hook nil |
443 | "*Hooks run after preparing the help message." | |
444 | :type 'hook | |
328b4b70 | 445 | :group 'ediff-hook) |
1e70790f | 446 | |
7261ece3 | 447 | (defcustom ediff-suspend-hook nil |
1e70790f MK |
448 | "*Hooks to run in the Ediff control buffer when Ediff is suspended." |
449 | :type 'hook | |
328b4b70 | 450 | :group 'ediff-hook) |
7261ece3 | 451 | (defcustom ediff-quit-hook nil |
1e70790f MK |
452 | "*Hooks to run in the Ediff control buffer after finishing Ediff." |
453 | :type 'hook | |
acce6d21 | 454 | :group 'ediff-hook) |
1e70790f | 455 | (defcustom ediff-cleanup-hook nil |
3af0304a | 456 | "*Hooks to run on exiting Ediff but before killing the control and variant buffers." |
1e70790f | 457 | :type 'hook |
328b4b70 | 458 | :group 'ediff-hook) |
475f9031 | 459 | |
4ae69eac MK |
460 | ;; Error messages |
461 | (defconst ediff-KILLED-VITAL-BUFFER | |
462 | "You have killed a vital Ediff buffer---you must leave Ediff now!") | |
463 | (defconst ediff-NO-DIFFERENCES | |
bbe6126c MK |
464 | "Sorry, comparison of identical variants is not what I am made for...") |
465 | (defconst ediff-BAD-DIFF-NUMBER | |
466 | ;; %S stands for this-command, %d - diff number, %d - max diff | |
3af0304a | 467 | "%S: Bad diff region number, %d. Valid numbers are 1 to %d") |
92c51e07 MK |
468 | (defconst ediff-BAD-INFO (format " |
469 | *** The Info file for Ediff, a part of the standard distribution | |
470 | *** of %sEmacs, does not seem to be properly installed. | |
acce6d21 | 471 | *** |
92c51e07 MK |
472 | *** Please contact your system administrator. " |
473 | (if ediff-xemacs-p "X" ""))) | |
acce6d21 | 474 | |
475f9031 KH |
475 | ;; Selective browsing |
476 | ||
477 | (ediff-defvar-local ediff-skip-diff-region-function 'ediff-show-all-diffs | |
478 | "Function that determines the next/previous diff region to show. | |
479 | Should return t for regions to be ignored and nil otherwise. | |
3af0304a MK |
480 | This function gets a region number as an argument. The region number |
481 | is the one used internally by Ediff. It is 1 less than the number seen | |
475f9031 KH |
482 | by the user.") |
483 | ||
8343426b | 484 | (ediff-defvar-local ediff-hide-regexp-matches-function |
acce6d21 | 485 | 'ediff-hide-regexp-matches |
8343426b MK |
486 | "Function to use in determining which regions to hide. |
487 | See the documentation string of `ediff-hide-regexp-matches' for details.") | |
488 | (ediff-defvar-local ediff-focus-on-regexp-matches-function | |
489 | 'ediff-focus-on-regexp-matches | |
490 | "Function to use in determining which regions to focus on. | |
491 | See the documentation string of `ediff-focus-on-regexp-matches' for details.") | |
492 | ||
475f9031 KH |
493 | ;; Regexp that determines buf A regions to focus on when skipping to diff |
494 | (ediff-defvar-local ediff-regexp-focus-A "" "") | |
495 | ;; Regexp that determines buf B regions to focus on when skipping to diff | |
496 | (ediff-defvar-local ediff-regexp-focus-B "" "") | |
497 | ;; Regexp that determines buf C regions to focus on when skipping to diff | |
498 | (ediff-defvar-local ediff-regexp-focus-C "" "") | |
499 | ;; connective that determines whether to focus regions that match both or | |
500 | ;; one of the regexps | |
501 | (ediff-defvar-local ediff-focus-regexp-connective 'and "") | |
acce6d21 | 502 | |
475f9031 KH |
503 | ;; Regexp that determines buf A regions to ignore when skipping to diff |
504 | (ediff-defvar-local ediff-regexp-hide-A "" "") | |
505 | ;; Regexp that determines buf B regions to ignore when skipping to diff | |
506 | (ediff-defvar-local ediff-regexp-hide-B "" "") | |
507 | ;; Regexp that determines buf C regions to ignore when skipping to diff | |
508 | (ediff-defvar-local ediff-regexp-hide-C "" "") | |
509 | ;; connective that determines whether to hide regions that match both or | |
510 | ;; one of the regexps | |
511 | (ediff-defvar-local ediff-hide-regexp-connective 'and "") | |
1e70790f | 512 | |
acce6d21 TTN |
513 | |
514 | ;;; Copying difference regions between buffers. | |
515 | ||
516 | ;; A list of killed diffs. | |
1e70790f MK |
517 | ;; A diff is saved here if it is replaced by a diff |
518 | ;; from another buffer. This alist has the form: | |
519 | ;; \((num (buff-object . diff) (buff-object . diff) (buff-object . diff)) ...), | |
520 | ;; where some buffer-objects may be missing. | |
521 | (ediff-defvar-local ediff-killed-diffs-alist nil "") | |
475f9031 KH |
522 | |
523 | ||
524 | ;; Highlighting | |
1e70790f MK |
525 | (defcustom ediff-before-flag-bol (if ediff-xemacs-p (make-glyph "->>") "->>") |
526 | "*Flag placed before a highlighted block of differences, if block starts at beginning of a line." | |
527 | :type 'string | |
528 | :tag "Region before-flag at beginning of line" | |
529 | :group 'ediff) | |
530 | ||
531 | (defcustom ediff-after-flag-eol (if ediff-xemacs-p (make-glyph "<<-") "<<-") | |
532 | "*Flag placed after a highlighted block of differences, if block ends at end of a line." | |
533 | :type 'string | |
534 | :tag "Region after-flag at end of line" | |
535 | :group 'ediff) | |
536 | ||
537 | (defcustom ediff-before-flag-mol (if ediff-xemacs-p (make-glyph "->>") "->>") | |
538 | "*Flag placed before a highlighted block of differences, if block starts in mid-line." | |
539 | :type 'string | |
540 | :tag "Region before-flag in the middle of line" | |
541 | :group 'ediff) | |
542 | (defcustom ediff-after-flag-mol (if ediff-xemacs-p (make-glyph "<<-") "<<-") | |
543 | "*Flag placed after a highlighted block of differences, if block ends in mid-line." | |
544 | :type 'string | |
545 | :tag "Region after-flag in the middle of line" | |
546 | :group 'ediff) | |
475f9031 | 547 | |
acce6d21 TTN |
548 | |
549 | (ediff-defvar-local ediff-use-faces t "") | |
550 | (defcustom ediff-use-faces t | |
4ae69eac MK |
551 | "If t, differences are highlighted using faces, if device supports faces. |
552 | If nil, differences are highlighted using ASCII flags, ediff-before-flag | |
475f9031 | 553 | and ediff-after-flag. On a non-window system, differences are always |
2eb4bdca MK |
554 | highlighted using ASCII flags." |
555 | :type 'boolean | |
556 | :group 'ediff-highlighting) | |
475f9031 | 557 | |
475f9031 | 558 | ;; this indicates that diff regions are word-size, so fine diffs are |
41d25ad0 | 559 | ;; permanently nixed; used in ediff-windows-wordwise and ediff-regions-wordwise |
475f9031 | 560 | (ediff-defvar-local ediff-word-mode nil "") |
8343426b | 561 | ;; Name of the job (ediff-files, ediff-windows, etc.) |
475f9031 KH |
562 | (ediff-defvar-local ediff-job-name nil "") |
563 | ||
564 | ;; Narrowing and ediff-region/windows support | |
565 | ;; This is a list (overlay-A overlay-B overlay-C) | |
566 | ;; If set, Ediff compares only those parts of buffers A/B/C that lie within | |
567 | ;; the bounds of these overlays. | |
568 | (ediff-defvar-local ediff-narrow-bounds nil "") | |
569 | ||
570 | ;; List (overlay-A overlay-B overlay-C), where each overlay spans the | |
571 | ;; entire corresponding buffer. | |
572 | (ediff-defvar-local ediff-wide-bounds nil "") | |
573 | ||
574 | ;; Current visibility boundaries in buffers A, B, and C. | |
3af0304a | 575 | ;; This is also a list of overlays. When the user toggles narrow/widen, |
475f9031 KH |
576 | ;; this list changes from ediff-wide-bounds to ediff-narrow-bounds. |
577 | ;; and back. | |
578 | (ediff-defvar-local ediff-visible-bounds nil "") | |
579 | ||
580 | (ediff-defvar-local ediff-start-narrowed t | |
41d25ad0 | 581 | "Non-nil means start narrowed, if doing ediff-windows-* or ediff-regions-*") |
475f9031 KH |
582 | (ediff-defvar-local ediff-quit-widened t |
583 | "*Non-nil means: when finished, Ediff widens buffers A/B. | |
584 | Actually, Ediff restores the scope of visibility that existed at startup.") | |
1e70790f MK |
585 | |
586 | (defcustom ediff-keep-variants t | |
587 | "*Nil means that non-modified variant buffers should be removed at the end of the session after some interrogation. | |
ceb0ea8b | 588 | Supplying a prefix argument to the quit command `q' temporarily reverses the |
1e70790f MK |
589 | meaning of this variable." |
590 | :type 'boolean | |
591 | :group 'ediff) | |
475f9031 | 592 | |
d84b06ef | 593 | (ediff-defvar-local ediff-highlight-all-diffs t "") |
2eb4bdca | 594 | (defcustom ediff-highlight-all-diffs t |
475f9031 | 595 | "If nil, only the selected differences are highlighted. |
2eb4bdca MK |
596 | Otherwise, all difference regions are highlighted, but the selected region is |
597 | shown in brighter colors." | |
598 | :type 'boolean | |
599 | :group 'ediff-highlighting) | |
475f9031 KH |
600 | |
601 | ;; A var local to each control panel buffer. Indicates highlighting style | |
602 | ;; in effect for this buffer: `face', `ascii', nil -- temporarily | |
603 | ;; unhighlighted, `off' -- turned off \(on a dumb terminal only\). | |
604 | (ediff-defvar-local ediff-highlighting-style nil "") | |
605 | ||
acce6d21 | 606 | |
475f9031 KH |
607 | ;; The suffix of the control buffer name. |
608 | (ediff-defvar-local ediff-control-buffer-suffix nil "") | |
acce6d21 | 609 | ;; Same as ediff-control-buffer-suffix, but without <,>. |
475f9031 KH |
610 | ;; It's a number rather than string. |
611 | (ediff-defvar-local ediff-control-buffer-number nil "") | |
612 | ||
613 | ||
475f9031 | 614 | ;; The original values of ediff-protected-variables for buffer A |
41d25ad0 | 615 | (ediff-defvar-local ediff-buffer-values-orig-A nil "") |
475f9031 | 616 | ;; The original values of ediff-protected-variables for buffer B |
41d25ad0 | 617 | (ediff-defvar-local ediff-buffer-values-orig-B nil "") |
475f9031 | 618 | ;; The original values of ediff-protected-variables for buffer C |
41d25ad0 | 619 | (ediff-defvar-local ediff-buffer-values-orig-C nil "") |
8343426b MK |
620 | ;; The original values of ediff-protected-variables for buffer Ancestor |
621 | (ediff-defvar-local ediff-buffer-values-orig-Ancestor nil "") | |
1e70790f | 622 | |
e756eb9f MK |
623 | ;; association between buff-type and ediff-buffer-values-orig-* |
624 | (defconst ediff-buffer-values-orig-alist | |
625 | '((A . ediff-buffer-values-orig-A) | |
626 | (B . ediff-buffer-values-orig-B) | |
627 | (C . ediff-buffer-values-orig-C) | |
628 | (Ancestor . ediff-buffer-values-orig-Ancestor))) | |
629 | ||
475f9031 | 630 | ;; Buffer-local variables to be saved then restored during Ediff sessions |
92c51e07 | 631 | (defconst ediff-protected-variables '( |
acce6d21 | 632 | ;;buffer-read-only |
475f9031 KH |
633 | mode-line-format)) |
634 | ||
475f9031 KH |
635 | ;; Vector of differences between the variants. Each difference is |
636 | ;; represented by a vector of two overlays plus a vector of fine diffs, | |
637 | ;; plus a no-fine-diffs flag. The first overlay spans the | |
638 | ;; difference region in the A buffer and the second overlays the diff in | |
3af0304a | 639 | ;; the B buffer. If a difference section is empty, the corresponding |
475f9031 KH |
640 | ;; overlay's endpoints coincide. |
641 | ;; | |
3af0304a | 642 | ;; The precise form of a Difference Vector for one buffer is: |
475f9031 KH |
643 | ;; [diff diff diff ...] |
644 | ;; where each diff has the form: | |
3af0304a | 645 | ;; [diff-overlay fine-diff-vector no-fine-diffs-flag state-of-diff] |
475f9031 KH |
646 | ;; fine-diff-vector is a vector [fine-diff-overlay fine-diff-overlay ...] |
647 | ;; no-fine-diffs-flag says if there are fine differences. | |
648 | ;; state-of-difference is A, B, C, or nil, indicating which buffer is | |
3af0304a | 649 | ;; different from the other two (used only in 3-way jobs. |
475f9031 KH |
650 | (ediff-defvar-local ediff-difference-vector-A nil "") |
651 | (ediff-defvar-local ediff-difference-vector-B nil "") | |
652 | (ediff-defvar-local ediff-difference-vector-C nil "") | |
8343426b | 653 | (ediff-defvar-local ediff-difference-vector-Ancestor nil "") |
e756eb9f MK |
654 | ;; A-list of diff vector types associated with buffer types |
655 | (defconst ediff-difference-vector-alist | |
656 | '((A . ediff-difference-vector-A) | |
657 | (B . ediff-difference-vector-B) | |
658 | (C . ediff-difference-vector-C) | |
659 | (Ancestor . ediff-difference-vector-Ancestor))) | |
8343426b MK |
660 | |
661 | ;; [ status status status ...] | |
662 | ;; Each status: [state-of-merge state-of-ancestor] | |
3af0304a | 663 | ;; state-of-merge is default-A, default-B, prefer-A, or prefer-B. It |
8343426b MK |
664 | ;; indicates the way a diff region was created in buffer C. |
665 | ;; state-of-ancestor says if the corresponding region in ancestor buffer is | |
666 | ;; empty. | |
667 | (ediff-defvar-local ediff-state-of-merge nil "") | |
475f9031 KH |
668 | |
669 | ;; The difference that is currently selected. | |
670 | (ediff-defvar-local ediff-current-difference -1 "") | |
671 | ;; Number of differences found. | |
672 | (ediff-defvar-local ediff-number-of-differences nil "") | |
acce6d21 | 673 | |
475f9031 KH |
674 | ;; Buffer containing the output of diff, which is used by Ediff to step |
675 | ;; through files. | |
676 | (ediff-defvar-local ediff-diff-buffer nil "") | |
3af0304a | 677 | ;; Like ediff-diff-buffer, but contains context diff. It is not used by |
475f9031 KH |
678 | ;; Ediff, but it is saved in a file, if user requests so. |
679 | (ediff-defvar-local ediff-custom-diff-buffer nil "") | |
680 | ;; Buffer used for diff-style fine differences between regions. | |
681 | (ediff-defvar-local ediff-fine-diff-buffer nil "") | |
682 | ;; Temporary buffer used for computing fine differences. | |
683 | (defconst ediff-tmp-buffer " *ediff-tmp*" "") | |
684 | ;; Buffer used for messages | |
685 | (defconst ediff-msg-buffer " *ediff-message*" "") | |
686 | ;; Buffer containing the output of diff when diff returns errors. | |
687 | (ediff-defvar-local ediff-error-buffer nil "") | |
688 | ;; Buffer to display debug info | |
689 | (ediff-defvar-local ediff-debug-buffer "*ediff-debug*" "") | |
690 | ||
8343426b MK |
691 | ;; List of ediff control panels associated with each buffer A/B/C/Ancestor. |
692 | ;; Not used any more, but may be needed in the future. | |
693 | (ediff-defvar-local ediff-this-buffer-ediff-sessions nil "") | |
475f9031 KH |
694 | |
695 | ;; to be deleted in due time | |
696 | ;; List of difference overlays disturbed by working with the current diff. | |
697 | (defvar ediff-disturbed-overlays nil "") | |
acce6d21 | 698 | |
475f9031 KH |
699 | ;; Priority of non-selected overlays. |
700 | (defvar ediff-shadow-overlay-priority 100 "") | |
701 | ||
1e70790f | 702 | (defcustom ediff-version-control-package 'vc |
8343426b | 703 | "Version control package used. |
3af0304a MK |
704 | Currently, Ediff supports vc.el, rcs.el, pcl-cvs.el, and generic-sc.el. The |
705 | standard Emacs interface to RCS, CVS, SCCS, etc., is vc.el. However, some | |
706 | people find the other two packages more convenient. Set this variable to the | |
1e70790f MK |
707 | appropriate symbol: `rcs', `pcl-cvs', or `generic-sc' if you so desire." |
708 | :type 'symbol | |
709 | :group 'ediff) | |
8343426b | 710 | |
475f9031 KH |
711 | |
712 | (if ediff-xemacs-p | |
713 | (progn | |
714 | (fset 'ediff-read-event (symbol-function 'next-command-event)) | |
715 | (fset 'ediff-overlayp (symbol-function 'extentp)) | |
716 | (fset 'ediff-make-overlay (symbol-function 'make-extent)) | |
4ae69eac | 717 | (fset 'ediff-delete-overlay (symbol-function 'delete-extent))) |
475f9031 KH |
718 | (fset 'ediff-read-event (symbol-function 'read-event)) |
719 | (fset 'ediff-overlayp (symbol-function 'overlayp)) | |
720 | (fset 'ediff-make-overlay (symbol-function 'make-overlay)) | |
4ae69eac | 721 | (fset 'ediff-delete-overlay (symbol-function 'delete-overlay))) |
acce6d21 | 722 | |
41d25ad0 KH |
723 | ;; Check the current version against the major and minor version numbers |
724 | ;; using op: cur-vers op major.minor If emacs-major-version or | |
725 | ;; emacs-minor-version are not defined, we assume that the current version | |
726 | ;; is hopelessly outdated. We assume that emacs-major-version and | |
727 | ;; emacs-minor-version are defined. Otherwise, for Emacs/XEmacs 19, if the | |
728 | ;; current minor version is < 10 (xemacs) or < 23 (emacs) the return value | |
729 | ;; will be nil (when op is =, >, or >=) and t (when op is <, <=), which may be | |
3af0304a | 730 | ;; incorrect. However, this gives correct result in our cases, since we are |
41d25ad0 KH |
731 | ;; testing for sufficiently high Emacs versions. |
732 | (defun ediff-check-version (op major minor &optional type-of-emacs) | |
733 | (if (and (boundp 'emacs-major-version) (boundp 'emacs-minor-version)) | |
734 | (and (cond ((eq type-of-emacs 'xemacs) ediff-xemacs-p) | |
735 | ((eq type-of-emacs 'emacs) ediff-emacs-p) | |
736 | (t t)) | |
737 | (cond ((eq op '=) (and (= emacs-minor-version minor) | |
738 | (= emacs-major-version major))) | |
739 | ((memq op '(> >= < <=)) | |
740 | (and (or (funcall op emacs-major-version major) | |
741 | (= emacs-major-version major)) | |
742 | (if (= emacs-major-version major) | |
743 | (funcall op emacs-minor-version minor) | |
744 | t))) | |
745 | (t | |
746 | (error "%S: Invalid op in ediff-check-version" op)))) | |
747 | (cond ((memq op '(= > >=)) nil) | |
748 | ((memq op '(< <=)) t)))) | |
acce6d21 TTN |
749 | |
750 | ||
d396e521 MK |
751 | (defun ediff-color-display-p () |
752 | (condition-case nil | |
753 | (if ediff-emacs-p | |
754 | (if (fboundp 'display-color-p) | |
755 | (display-color-p) | |
756 | (x-display-color-p)) | |
757 | (eq (device-class (selected-device)) 'color)) | |
758 | (error | |
759 | nil))) | |
8343426b | 760 | |
acce6d21 | 761 | |
4ae69eac | 762 | (if (ediff-has-face-support-p) |
41d25ad0 KH |
763 | (if ediff-xemacs-p |
764 | (progn | |
41d25ad0 KH |
765 | (fset 'ediff-valid-color-p (symbol-function 'valid-color-name-p)) |
766 | (fset 'ediff-get-face (symbol-function 'get-face))) | |
d396e521 MK |
767 | (fset 'ediff-valid-color-p (symbol-function |
768 | (if (fboundp 'color-defined-p) | |
769 | 'color-defined-p | |
770 | 'x-color-defined-p))) | |
41d25ad0 | 771 | (fset 'ediff-get-face (symbol-function 'internal-get-face)))) |
4ae69eac MK |
772 | |
773 | (if (ediff-window-display-p) | |
774 | (if ediff-xemacs-p | |
775 | (progn | |
776 | (fset 'ediff-display-pixel-width | |
777 | (symbol-function 'device-pixel-width)) | |
778 | (fset 'ediff-display-pixel-height | |
779 | (symbol-function 'device-pixel-height))) | |
d396e521 MK |
780 | (fset 'ediff-display-pixel-width (symbol-function |
781 | (if (fboundp 'display-pixel-width) | |
782 | 'display-pixel-width | |
783 | 'x-display-pixel-width))) | |
784 | (fset 'ediff-display-pixel-height (symbol-function | |
785 | (if (fboundp 'display-pixel-height) | |
786 | 'display-pixel-height | |
787 | 'x-display-pixel-height))))) | |
acce6d21 | 788 | |
657f9cb8 | 789 | ;; A-list of current-diff-overlay symbols associated with buf types |
e756eb9f MK |
790 | (defconst ediff-current-diff-overlay-alist |
791 | '((A . ediff-current-diff-overlay-A) | |
792 | (B . ediff-current-diff-overlay-B) | |
793 | (C . ediff-current-diff-overlay-C) | |
794 | (Ancestor . ediff-current-diff-overlay-Ancestor))) | |
acce6d21 | 795 | |
657f9cb8 | 796 | ;; A-list of current-diff-face-* symbols associated with buf types |
e756eb9f MK |
797 | (defconst ediff-current-diff-face-alist |
798 | '((A . ediff-current-diff-face-A) | |
799 | (B . ediff-current-diff-face-B) | |
800 | (C . ediff-current-diff-face-C) | |
801 | (Ancestor . ediff-current-diff-face-Ancestor))) | |
acce6d21 | 802 | |
475f9031 | 803 | |
8343426b | 804 | (defun ediff-make-current-diff-overlay (type) |
4ae69eac | 805 | (if (ediff-has-face-support-p) |
e756eb9f MK |
806 | (let ((overlay (ediff-get-symbol-from-alist |
807 | type ediff-current-diff-overlay-alist)) | |
8343426b MK |
808 | (buffer (ediff-get-buffer type)) |
809 | (face (face-name | |
810 | (symbol-value | |
e756eb9f MK |
811 | (ediff-get-symbol-from-alist |
812 | type ediff-current-diff-face-alist))))) | |
8343426b MK |
813 | (set overlay |
814 | (ediff-make-bullet-proof-overlay (point-max) (point-max) buffer)) | |
815 | (ediff-set-overlay-face (symbol-value overlay) face) | |
816 | (ediff-overlay-put (symbol-value overlay) 'ediff ediff-control-buffer)) | |
817 | )) | |
818 | ||
819 | (defun ediff-set-overlay-face (extent face) | |
820 | (ediff-overlay-put extent 'face face) | |
821 | (ediff-overlay-put extent 'help-echo 'ediff-region-help-echo)) | |
acce6d21 | 822 | |
475de6f4 DL |
823 | (defun ediff-region-help-echo (extent-or-window &optional overlay point) |
824 | (unless overlay | |
825 | (setq overlay extent-or-window)) | |
826 | (let ((is-current (ediff-overlay-get overlay 'ediff)) | |
827 | (face (ediff-overlay-get overlay 'face)) | |
a21f0bd5 DL |
828 | (diff-num (ediff-overlay-get overlay 'ediff-diff-num)) |
829 | face-help) | |
8343426b MK |
830 | |
831 | ;; This happens only for refinement overlays | |
475de6f4 DL |
832 | (if (stringp face) |
833 | (setq face (intern face))) | |
8343426b MK |
834 | (setq face-help (and face (get face 'ediff-help-echo))) |
835 | ||
50575ec2 | 836 | (cond ((and is-current diff-num) ; current diff region |
bbe6126c | 837 | (format "Difference region %S -- current" (1+ diff-num))) |
475de6f4 | 838 | (face-help) ; refinement of current diff region |
50575ec2 | 839 | (diff-num ; non-current |
bbe6126c | 840 | (format "Difference region %S -- non-current" (1+ diff-num))) |
50575ec2 | 841 | (t "")) ; none |
30729019 | 842 | )) |
8343426b | 843 | |
36d57fa9 | 844 | |
92c51e07 MK |
845 | (defun ediff-set-face-pixmap (face pixmap) |
846 | "Set face pixmap on a monochrome display." | |
847 | (if (and (ediff-window-display-p) (not (ediff-color-display-p))) | |
848 | (condition-case nil | |
849 | (set-face-background-pixmap face pixmap) | |
850 | (error | |
851 | (message "Pixmap not found for %S: %s" (face-name face) pixmap) | |
852 | (sit-for 1))))) | |
853 | ||
4ae69eac MK |
854 | (defun ediff-hide-face (face) |
855 | (if (and (ediff-has-face-support-p) ediff-emacs-p) | |
856 | (add-to-list 'facemenu-unlisted-faces face))) | |
acce6d21 | 857 | |
475f9031 | 858 | |
985d0dad MK |
859 | |
860 | (defface ediff-current-diff-face-A | |
861 | '((((class color)) (:foreground "firebrick" :background "pale green")) | |
862 | (t (:inverse-video t))) | |
863 | "Face for highlighting the selected difference in buffer A." | |
864 | :group 'ediff-highlighting) | |
3af0304a | 865 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 866 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
867 | (defvar ediff-current-diff-face-A 'ediff-current-diff-face-A |
868 | "Face for highlighting the selected difference in buffer A. | |
3af0304a | 869 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
870 | widget to customize the actual face object `ediff-current-diff-face-A' |
871 | this variable represents.") | |
985d0dad MK |
872 | (ediff-hide-face 'ediff-current-diff-face-A) |
873 | ;; Until custom.el for XEmacs starts supporting :inverse-video we do this. | |
874 | ;; This means that some user customization may be trashed. | |
875 | (if (and ediff-xemacs-p | |
876 | (ediff-has-face-support-p) | |
acce6d21 | 877 | (not (ediff-color-display-p))) |
985d0dad MK |
878 | (copy-face 'modeline 'ediff-current-diff-face-A)) |
879 | ||
880 | ||
881 | ||
985d0dad MK |
882 | (defface ediff-current-diff-face-B |
883 | '((((class color)) (:foreground "DarkOrchid" :background "Yellow")) | |
884 | (t (:inverse-video t))) | |
885 | "Face for highlighting the selected difference in buffer B." | |
886 | :group 'ediff-highlighting) | |
3af0304a | 887 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 888 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
889 | (defvar ediff-current-diff-face-B 'ediff-current-diff-face-B |
890 | "Face for highlighting the selected difference in buffer B. | |
3af0304a | 891 | this variable. Instead, use the customization |
8e41a31c MK |
892 | widget to customize the actual face `ediff-current-diff-face-B' |
893 | this variable represents.") | |
985d0dad MK |
894 | (ediff-hide-face 'ediff-current-diff-face-B) |
895 | ;; Until custom.el for XEmacs starts supporting :inverse-video we do this. | |
896 | ;; This means that some user customization may be trashed. | |
897 | (if (and ediff-xemacs-p | |
898 | (ediff-has-face-support-p) | |
acce6d21 | 899 | (not (ediff-color-display-p))) |
985d0dad MK |
900 | (copy-face 'modeline 'ediff-current-diff-face-B)) |
901 | ||
985d0dad MK |
902 | |
903 | (defface ediff-current-diff-face-C | |
904 | '((((class color)) (:foreground "Navy" :background "Pink")) | |
905 | (t (:inverse-video t))) | |
906 | "Face for highlighting the selected difference in buffer C." | |
907 | :group 'ediff-highlighting) | |
3af0304a | 908 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 909 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
910 | (defvar ediff-current-diff-face-C 'ediff-current-diff-face-C |
911 | "Face for highlighting the selected difference in buffer C. | |
3af0304a | 912 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
913 | widget to customize the actual face object `ediff-current-diff-face-C' |
914 | this variable represents.") | |
985d0dad MK |
915 | (ediff-hide-face 'ediff-current-diff-face-C) |
916 | ;; Until custom.el for XEmacs starts supporting :inverse-video we do this. | |
917 | ;; This means that some user customization may be trashed. | |
918 | (if (and ediff-xemacs-p | |
919 | (ediff-has-face-support-p) | |
acce6d21 | 920 | (not (ediff-color-display-p))) |
985d0dad MK |
921 | (copy-face 'modeline 'ediff-current-diff-face-C)) |
922 | ||
985d0dad MK |
923 | |
924 | (defface ediff-current-diff-face-Ancestor | |
925 | '((((class color)) (:foreground "Black" :background "VioletRed")) | |
926 | (t (:inverse-video t))) | |
927 | "Face for highlighting the selected difference in buffer Ancestor." | |
928 | :group 'ediff-highlighting) | |
3af0304a | 929 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 930 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
931 | (defvar ediff-current-diff-face-Ancestor 'ediff-current-diff-face-Ancestor |
932 | "Face for highlighting the selected difference in buffer Ancestor. | |
3af0304a | 933 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
934 | widget to customize the actual face object `ediff-current-diff-face-Ancestor' |
935 | this variable represents.") | |
985d0dad MK |
936 | (ediff-hide-face 'ediff-current-diff-face-Ancestor) |
937 | ;; Until custom.el for XEmacs starts supporting :inverse-video we do this. | |
938 | ;; This means that some user customization may be trashed. | |
939 | (if (and ediff-xemacs-p | |
940 | (ediff-has-face-support-p) | |
acce6d21 | 941 | (not (ediff-color-display-p))) |
985d0dad MK |
942 | (copy-face 'modeline 'ediff-current-diff-face-Ancestor)) |
943 | ||
985d0dad MK |
944 | |
945 | (defface ediff-fine-diff-face-A | |
946 | '((((class color)) (:foreground "Navy" :background "sky blue")) | |
947 | (t (:underline t :stipple "gray3"))) | |
948 | "Face for highlighting the refinement of the selected diff in buffer A." | |
949 | :group 'ediff-highlighting) | |
3af0304a | 950 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 951 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
952 | (defvar ediff-fine-diff-face-A 'ediff-fine-diff-face-A |
953 | "Face for highlighting the fine differences in buffer A. | |
3af0304a | 954 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
955 | widget to customize the actual face object `ediff-fine-diff-face-A' |
956 | this variable represents.") | |
985d0dad | 957 | (ediff-hide-face 'ediff-fine-diff-face-A) |
c004db97 | 958 | |
985d0dad MK |
959 | (defface ediff-fine-diff-face-B |
960 | '((((class color)) (:foreground "Black" :background "cyan")) | |
961 | (t (:underline t :stipple "gray3"))) | |
962 | "Face for highlighting the refinement of the selected diff in buffer B." | |
963 | :group 'ediff-highlighting) | |
3af0304a | 964 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 965 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
966 | (defvar ediff-fine-diff-face-B 'ediff-fine-diff-face-B |
967 | "Face for highlighting the fine differences in buffer B. | |
3af0304a | 968 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
969 | widget to customize the actual face object `ediff-fine-diff-face-B' |
970 | this variable represents.") | |
985d0dad | 971 | (ediff-hide-face 'ediff-fine-diff-face-B) |
c004db97 | 972 | |
985d0dad MK |
973 | (defface ediff-fine-diff-face-C |
974 | '((((class color)) (:foreground "Black" :background "Turquoise")) | |
975 | (t (:underline t :stipple "gray3"))) | |
976 | "Face for highlighting the refinement of the selected diff in buffer C." | |
977 | :group 'ediff-highlighting) | |
3af0304a | 978 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 979 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
980 | (defvar ediff-fine-diff-face-C 'ediff-fine-diff-face-C |
981 | "Face for highlighting the fine differences in buffer C. | |
3af0304a | 982 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
983 | widget to customize the actual face object `ediff-fine-diff-face-C' |
984 | this variable represents.") | |
985d0dad | 985 | (ediff-hide-face 'ediff-fine-diff-face-C) |
c004db97 | 986 | |
985d0dad MK |
987 | (defface ediff-fine-diff-face-Ancestor |
988 | '((((class color)) (:foreground "Black" :background "Green")) | |
989 | (t (:underline t :stipple "gray3"))) | |
990 | "Face for highlighting the refinement of the selected diff in the ancestor buffer. | |
991 | At present, this face is not used and no fine differences are computed for the | |
992 | ancestor buffer." | |
993 | :group 'ediff-highlighting) | |
3af0304a | 994 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 995 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
996 | (defvar ediff-fine-diff-face-Ancestor 'ediff-fine-diff-face-Ancestor |
997 | "Face for highlighting the fine differences in buffer Ancestor. | |
3af0304a | 998 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
999 | widget to customize the actual face object `ediff-fine-diff-face-Ancestor' |
1000 | this variable represents.") | |
985d0dad | 1001 | (ediff-hide-face 'ediff-fine-diff-face-Ancestor) |
c004db97 | 1002 | |
3af0304a MK |
1003 | ;; Some installs don't have stipple or Stipple. So, try them in turn. |
1004 | (defvar stipple-pixmap | |
086171bf | 1005 | (cond ((not (ediff-has-face-support-p)) nil) |
3af0304a MK |
1006 | ((and (boundp 'x-bitmap-file-path) |
1007 | (locate-library "stipple" t x-bitmap-file-path)) "stipple") | |
1008 | ((and (boundp 'mswindowsx-bitmap-file-path) | |
1009 | (locate-library "stipple" t mswindowsx-bitmap-file-path)) "stipple") | |
1010 | (t "Stipple"))) | |
1011 | ||
985d0dad | 1012 | (defface ediff-even-diff-face-A |
086171bf MK |
1013 | `((((class color)) (:foreground "Black" :background "light grey")) |
1014 | (t (:italic t :stipple ,stipple-pixmap))) | |
985d0dad MK |
1015 | "Face for highlighting even-numbered non-current differences in buffer A." |
1016 | :group 'ediff-highlighting) | |
3af0304a | 1017 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 1018 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
1019 | (defvar ediff-even-diff-face-A 'ediff-even-diff-face-A |
1020 | "Face for highlighting even-numbered non-current differences in buffer A. | |
3af0304a | 1021 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
1022 | widget to customize the actual face object `ediff-even-diff-face-A' |
1023 | this variable represents.") | |
985d0dad | 1024 | (ediff-hide-face 'ediff-even-diff-face-A) |
c004db97 | 1025 | |
985d0dad | 1026 | (defface ediff-even-diff-face-B |
086171bf MK |
1027 | `((((class color)) (:foreground "White" :background "Grey")) |
1028 | (t (:italic t :stipple ,stipple-pixmap))) | |
985d0dad MK |
1029 | "Face for highlighting even-numbered non-current differences in buffer B." |
1030 | :group 'ediff-highlighting) | |
3af0304a | 1031 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 1032 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
1033 | (defvar ediff-even-diff-face-B 'ediff-even-diff-face-B |
1034 | "Face for highlighting even-numbered non-current differences in buffer B. | |
3af0304a | 1035 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
1036 | widget to customize the actual face object `ediff-even-diff-face-B' |
1037 | this variable represents.") | |
985d0dad | 1038 | (ediff-hide-face 'ediff-even-diff-face-B) |
c004db97 | 1039 | |
985d0dad | 1040 | (defface ediff-even-diff-face-C |
086171bf MK |
1041 | `((((class color)) (:foreground "Black" :background "light grey")) |
1042 | (t (:italic t :stipple ,stipple-pixmap))) | |
985d0dad MK |
1043 | "Face for highlighting even-numbered non-current differences in buffer C." |
1044 | :group 'ediff-highlighting) | |
3af0304a | 1045 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 1046 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
1047 | (defvar ediff-even-diff-face-C 'ediff-even-diff-face-C |
1048 | "Face for highlighting even-numbered non-current differences in buffer C. | |
3af0304a | 1049 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
1050 | widget to customize the actual face object `ediff-even-diff-face-C' |
1051 | this variable represents.") | |
985d0dad | 1052 | (ediff-hide-face 'ediff-even-diff-face-C) |
c004db97 | 1053 | |
985d0dad | 1054 | (defface ediff-even-diff-face-Ancestor |
086171bf MK |
1055 | `((((class color)) (:foreground "White" :background "Grey")) |
1056 | (t (:italic t :stipple ,stipple-pixmap))) | |
985d0dad MK |
1057 | "Face for highlighting even-numbered non-current differences in the ancestor buffer." |
1058 | :group 'ediff-highlighting) | |
3af0304a | 1059 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 1060 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
1061 | (defvar ediff-even-diff-face-Ancestor 'ediff-even-diff-face-Ancestor |
1062 | "Face for highlighting even-numbered non-current differences in buffer Ancestor. | |
3af0304a | 1063 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
1064 | widget to customize the actual face object `ediff-even-diff-face-Ancestor' |
1065 | this variable represents.") | |
985d0dad | 1066 | (ediff-hide-face 'ediff-even-diff-face-Ancestor) |
c004db97 | 1067 | |
e756eb9f MK |
1068 | ;; Association between buffer types and even-diff-face symbols |
1069 | (defconst ediff-even-diff-face-alist | |
1070 | '((A . ediff-even-diff-face-A) | |
1071 | (B . ediff-even-diff-face-B) | |
1072 | (C . ediff-even-diff-face-C) | |
1073 | (Ancestor . ediff-even-diff-face-Ancestor))) | |
1074 | ||
985d0dad MK |
1075 | (defface ediff-odd-diff-face-A |
1076 | '((((class color)) (:foreground "White" :background "Grey")) | |
1077 | (t (:italic t :stipple "gray1"))) | |
1078 | "Face for highlighting odd-numbered non-current differences in buffer A." | |
1079 | :group 'ediff-highlighting) | |
3af0304a | 1080 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 1081 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
1082 | (defvar ediff-odd-diff-face-A 'ediff-odd-diff-face-A |
1083 | "Face for highlighting odd-numbered non-current differences in buffer A. | |
3af0304a | 1084 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
1085 | widget to customize the actual face object `ediff-odd-diff-face-A' |
1086 | this variable represents.") | |
985d0dad | 1087 | (ediff-hide-face 'ediff-odd-diff-face-A) |
c004db97 | 1088 | |
985d0dad MK |
1089 | |
1090 | (defface ediff-odd-diff-face-B | |
1091 | '((((class color)) (:foreground "Black" :background "light grey")) | |
1092 | (t (:italic t :stipple "gray1"))) | |
1093 | "Face for highlighting odd-numbered non-current differences in buffer B." | |
1094 | :group 'ediff-highlighting) | |
3af0304a | 1095 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 1096 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
1097 | (defvar ediff-odd-diff-face-B 'ediff-odd-diff-face-B |
1098 | "Face for highlighting odd-numbered non-current differences in buffer B. | |
3af0304a | 1099 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
1100 | widget to customize the actual face object `ediff-odd-diff-face-B' |
1101 | this variable represents.") | |
985d0dad | 1102 | (ediff-hide-face 'ediff-odd-diff-face-B) |
c004db97 | 1103 | |
985d0dad MK |
1104 | (defface ediff-odd-diff-face-C |
1105 | '((((class color)) (:foreground "White" :background "Grey")) | |
1106 | (t (:italic t :stipple "gray1"))) | |
1107 | "Face for highlighting odd-numbered non-current differences in buffer C." | |
1108 | :group 'ediff-highlighting) | |
3af0304a | 1109 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 1110 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
1111 | (defvar ediff-odd-diff-face-C 'ediff-odd-diff-face-C |
1112 | "Face for highlighting odd-numbered non-current differences in buffer C. | |
3af0304a | 1113 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
1114 | widget to customize the actual face object `ediff-odd-diff-face-C' |
1115 | this variable represents.") | |
985d0dad | 1116 | (ediff-hide-face 'ediff-odd-diff-face-C) |
c004db97 | 1117 | |
985d0dad MK |
1118 | (defface ediff-odd-diff-face-Ancestor |
1119 | '((((class color)) (:foreground "Black" :background "light grey")) | |
1120 | (t (:italic t :stipple "gray1"))) | |
1121 | "Face for highlighting odd-numbered non-current differences in the ancestor buffer." | |
1122 | :group 'ediff-highlighting) | |
3af0304a | 1123 | ;; An internal variable. Ediff takes the face from here. When unhighlighting, |
985d0dad | 1124 | ;; this variable is set to nil, then again to the appropriate face. |
8e41a31c MK |
1125 | (defvar ediff-odd-diff-face-Ancestor 'ediff-odd-diff-face-Ancestor |
1126 | "Face for highlighting odd-numbered non-current differences in buffer Ancestor. | |
3af0304a | 1127 | DO NOT CHANGE this variable. Instead, use the customization |
8e41a31c MK |
1128 | widget to customize the actual face object `ediff-odd-diff-face-Ancestor' |
1129 | this variable represents.") | |
985d0dad | 1130 | (ediff-hide-face 'ediff-odd-diff-face-Ancestor) |
c004db97 | 1131 | |
e756eb9f MK |
1132 | ;; Association between buffer types and odd-diff-face symbols |
1133 | (defconst ediff-odd-diff-face-alist | |
1134 | '((A . ediff-odd-diff-face-A) | |
1135 | (B . ediff-odd-diff-face-B) | |
1136 | (C . ediff-odd-diff-face-C) | |
1137 | (Ancestor . ediff-odd-diff-face-Ancestor))) | |
acce6d21 | 1138 | |
e756eb9f MK |
1139 | ;; A-list of fine-diff face symbols associated with buffer types |
1140 | (defconst ediff-fine-diff-face-alist | |
1141 | '((A . ediff-fine-diff-face-A) | |
1142 | (B . ediff-fine-diff-face-B) | |
1143 | (C . ediff-fine-diff-face-C) | |
1144 | (Ancestor . ediff-fine-diff-face-Ancestor))) | |
1145 | ||
8343426b MK |
1146 | ;; Help echo |
1147 | (put 'ediff-fine-diff-face-A 'ediff-help-echo | |
1148 | "A `refinement' of the current difference region") | |
1149 | (put 'ediff-fine-diff-face-B 'ediff-help-echo | |
1150 | "A `refinement' of the current difference region") | |
1151 | (put 'ediff-fine-diff-face-C 'ediff-help-echo | |
1152 | "A `refinement' of the current difference region") | |
1153 | (put 'ediff-fine-diff-face-Ancestor 'ediff-help-echo | |
1154 | "A `refinement' of the current difference region") | |
1155 | ||
7261ece3 MK |
1156 | (add-hook 'ediff-quit-hook 'ediff-cleanup-mess) |
1157 | (add-hook 'ediff-suspend-hook 'ediff-default-suspend-function) | |
1158 | ||
475f9031 KH |
1159 | |
1160 | ;;; Overlays | |
1161 | ||
8343426b MK |
1162 | (ediff-defvar-local ediff-current-diff-overlay-A nil |
1163 | "Overlay for the current difference region in buffer A.") | |
1164 | (ediff-defvar-local ediff-current-diff-overlay-B nil | |
1165 | "Overlay for the current difference region in buffer B.") | |
1166 | (ediff-defvar-local ediff-current-diff-overlay-C nil | |
1167 | "Overlay for the current difference region in buffer C.") | |
1168 | (ediff-defvar-local ediff-current-diff-overlay-Ancestor nil | |
1169 | "Overlay for the current difference region in the ancestor buffer.") | |
e756eb9f | 1170 | |
8343426b MK |
1171 | ;; Compute priority of ediff overlay. |
1172 | (defun ediff-highest-priority (start end buffer) | |
1173 | (let ((pos (max 1 (1- start))) | |
1174 | ovr-list) | |
1175 | (if ediff-xemacs-p | |
1176 | (1+ ediff-shadow-overlay-priority) | |
e756eb9f | 1177 | (ediff-with-current-buffer buffer |
8343426b MK |
1178 | (while (< pos (min (point-max) (1+ end))) |
1179 | (setq ovr-list (append (overlays-at pos) ovr-list)) | |
1180 | (setq pos (next-overlay-change pos))) | |
1181 | (1+ (apply '+ | |
3af0304a MK |
1182 | (mapcar (lambda (ovr) |
1183 | (if ovr | |
1184 | (or (ediff-overlay-get ovr 'priority) 0) | |
1185 | 0)) | |
8343426b MK |
1186 | ovr-list) |
1187 | )) | |
1188 | )))) | |
acce6d21 TTN |
1189 | |
1190 | ||
475f9031 KH |
1191 | (defvar ediff-toggle-read-only-function nil |
1192 | "*Specifies the function to be used to toggle read-only. | |
1193 | If nil, Ediff tries to deduce the function from the binding of C-x C-q. | |
1194 | Normally, this is the `toggle-read-only' function, but, if version | |
1195 | control is used, it could be `vc-toggle-read-only' or `rcs-toggle-read-only'.") | |
1196 | ||
1e70790f MK |
1197 | (defcustom ediff-make-buffers-readonly-at-startup nil |
1198 | "*Make all variant buffers read-only when Ediff starts up. | |
1199 | This property can be toggled interactively." | |
1200 | :type 'boolean | |
1201 | :group 'ediff) | |
1202 | ||
475f9031 KH |
1203 | |
1204 | ;;; Misc | |
1205 | ||
475f9031 KH |
1206 | ;; if nil, this silences some messages |
1207 | (defconst ediff-verbose-p t) | |
92c51e07 | 1208 | |
328b4b70 | 1209 | (defcustom ediff-autostore-merges 'group-jobs-only |
92c51e07 | 1210 | "*Save the results of merge jobs automatically. |
3af0304a | 1211 | Nil means don't save automatically. t means always save. Anything but nil or t |
92c51e07 | 1212 | means save automatically only if the merge job is part of a group of jobs, such |
2eb4bdca | 1213 | as `ediff-merge-directory' or `ediff-merge-directory-revisions'." |
3af0304a | 1214 | :type '(choice (const nil) (const t) (const group-jobs-only)) |
328b4b70 MK |
1215 | :group 'ediff-merge) |
1216 | (make-variable-buffer-local 'ediff-autostore-merges) | |
92c51e07 | 1217 | |
3af0304a | 1218 | ;; file where the result of the merge is to be saved. used internally |
92c51e07 | 1219 | (ediff-defvar-local ediff-merge-store-file nil "") |
6de3983f MK |
1220 | |
1221 | (defcustom ediff-merge-filename-prefix "merge_" | |
1222 | "*Prefix to be attached to saved merge buffers." | |
1223 | :type 'string | |
ca7d9565 | 1224 | :version "21.1" |
6de3983f | 1225 | :group 'ediff-merge) |
acce6d21 | 1226 | |
1e70790f | 1227 | (defcustom ediff-no-emacs-help-in-control-buffer nil |
475f9031 | 1228 | "*Non-nil means C-h should not invoke Emacs help in control buffer. |
1e70790f MK |
1229 | Instead, C-h would jump to previous difference." |
1230 | :type 'boolean | |
1231 | :group 'ediff) | |
acce6d21 | 1232 | |
3af0304a MK |
1233 | ;; This is the same as temporary-file-directory from Emacs 20.3. |
1234 | ;; Copied over here because XEmacs doesn't have this variable. | |
acce6d21 TTN |
1235 | (defcustom ediff-temp-file-prefix |
1236 | (file-name-as-directory | |
3af0304a MK |
1237 | (cond ((boundp 'temporary-file-directory) temporary-file-directory) |
1238 | ((fboundp 'temp-directory) (temp-directory)) | |
1239 | (t "/tmp/"))) | |
acce6d21 | 1240 | ;;; (file-name-as-directory |
3af0304a MK |
1241 | ;;; (cond ((memq system-type '(ms-dos windows-nt)) |
1242 | ;;; (or (getenv "TEMP") (getenv "TMPDIR") (getenv "TMP") "c:/temp")) | |
1243 | ;;; ((memq system-type '(vax-vms axp-vms)) | |
1244 | ;;; (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP") "SYS$SCRATCH:")) | |
1245 | ;;; (t | |
1246 | ;;; (or (getenv "TMPDIR") (getenv "TMP") (getenv "TEMP") "/tmp")))) | |
475f9031 | 1247 | "*Prefix to put on Ediff temporary file names. |
61d5c492 | 1248 | Do not start with `~/' or `~USERNAME/'." |
328b4b70 MK |
1249 | :type 'string |
1250 | :group 'ediff) | |
475f9031 | 1251 | |
328b4b70 MK |
1252 | (defcustom ediff-temp-file-mode 384 ; u=rw only |
1253 | "*Mode for Ediff temporary files." | |
1254 | :type 'integer | |
1255 | :group 'ediff) | |
acce6d21 | 1256 | |
475f9031 KH |
1257 | ;; Metacharacters that have to be protected from the shell when executing |
1258 | ;; a diff/diff3 command. | |
328b4b70 MK |
1259 | (defcustom ediff-metachars "[ \t\n!\"#$&'()*;<=>?[\\^`{|~]" |
1260 | "Regexp that matches characters that must be quoted with `\\' in shell command line. | |
1261 | This default should work without changes." | |
1262 | :type 'string | |
1263 | :group 'ediff) | |
475f9031 | 1264 | |
4ae69eac MK |
1265 | ;; needed to simulate frame-char-width in XEmacs. |
1266 | (defvar ediff-H-glyph (if ediff-xemacs-p (make-glyph "H"))) | |
1267 | ||
acce6d21 | 1268 | |
1e70790f MK |
1269 | ;; Temporary file used for refining difference regions in buffer A. |
1270 | (ediff-defvar-local ediff-temp-file-A nil "") | |
1271 | ;; Temporary file used for refining difference regions in buffer B. | |
1272 | (ediff-defvar-local ediff-temp-file-B nil "") | |
1273 | ;; Temporary file used for refining difference regions in buffer C. | |
1274 | (ediff-defvar-local ediff-temp-file-C nil "") | |
1275 | ||
475f9031 KH |
1276 | |
1277 | ;;; In-line functions | |
1278 | ||
ddc90f39 MK |
1279 | (or (fboundp 'ediff-file-remote-p) ; user supplied his own function: use it |
1280 | (defun ediff-file-remote-p (file-name) | |
7261ece3 MK |
1281 | (find-file-name-handler file-name 'file-local-copy))) |
1282 | ;;; (or (and (featurep 'efs-auto) (efs-ftp-path file-name)) | |
1283 | ;;; (and (featurep 'tramp) (tramp-tramp-file-p file-name)) | |
1284 | ;;; (and (fboundp 'file-remote-p) (file-remote-p file-name)) | |
1285 | ;;; ;; Can happen only in Emacs, since XEmacs has file-remote-p | |
1286 | ;;; (and (require 'ange-ftp) (ange-ftp-ftp-name file-name))))) | |
475f9031 | 1287 | |
acce6d21 | 1288 | |
475f9031 | 1289 | (defsubst ediff-frame-unsplittable-p (frame) |
41d25ad0 | 1290 | (cdr (assq 'unsplittable (frame-parameters frame)))) |
475f9031 KH |
1291 | |
1292 | (defsubst ediff-get-next-window (wind prev-wind) | |
1293 | (or (window-live-p wind) | |
1294 | (setq wind (if prev-wind | |
1295 | (next-window wind) | |
1296 | (selected-window))))) | |
1297 | ||
475f9031 KH |
1298 | |
1299 | (defsubst ediff-kill-buffer-carefully (buf) | |
1300 | "Kill buffer BUF if it exists." | |
1301 | (if (ediff-buffer-live-p buf) | |
1302 | (kill-buffer (get-buffer buf)))) | |
92c51e07 | 1303 | |
ddc90f39 MK |
1304 | (defsubst ediff-background-face (buf-type dif-num) |
1305 | ;; The value of dif-num is always 1- the one that user sees. | |
1306 | ;; This is why even face is used when dif-num is odd. | |
e756eb9f MK |
1307 | (ediff-get-symbol-from-alist |
1308 | buf-type (if (ediff-odd-p dif-num) | |
1309 | ediff-even-diff-face-alist | |
1310 | ediff-odd-diff-face-alist) | |
1311 | )) | |
ddc90f39 | 1312 | |
92c51e07 MK |
1313 | |
1314 | ;; activate faces on diff regions in buffer | |
1315 | (defun ediff-paint-background-regions-in-one-buffer (buf-type unhighlight) | |
acce6d21 | 1316 | (let ((diff-vector |
e756eb9f MK |
1317 | (eval (ediff-get-symbol-from-alist |
1318 | buf-type ediff-difference-vector-alist))) | |
92c51e07 | 1319 | overl diff-num) |
3af0304a MK |
1320 | (mapcar (lambda (rec) |
1321 | (setq overl (ediff-get-diff-overlay-from-diff-record rec) | |
1322 | diff-num (ediff-overlay-get overl 'ediff-diff-num)) | |
1323 | (if (ediff-overlay-buffer overl) | |
1324 | ;; only if overlay is alive | |
1325 | (ediff-set-overlay-face | |
1326 | overl | |
1327 | (if (not unhighlight) | |
1328 | (ediff-background-face buf-type diff-num)))) | |
1329 | ) | |
92c51e07 MK |
1330 | diff-vector))) |
1331 | ||
1332 | ||
1333 | ;; activate faces on diff regions in all buffers | |
1334 | (defun ediff-paint-background-regions (&optional unhighlight) | |
1335 | (ediff-paint-background-regions-in-one-buffer | |
1336 | 'A unhighlight) | |
1337 | (ediff-paint-background-regions-in-one-buffer | |
1338 | 'B unhighlight) | |
1339 | (ediff-paint-background-regions-in-one-buffer | |
1340 | 'C unhighlight) | |
1341 | (ediff-paint-background-regions-in-one-buffer | |
1342 | 'Ancestor unhighlight)) | |
1343 | ||
1344 | (defun ediff-highlight-diff-in-one-buffer (n buf-type) | |
1345 | (if (ediff-buffer-live-p (ediff-get-buffer buf-type)) | |
1346 | (let* ((buff (ediff-get-buffer buf-type)) | |
e756eb9f | 1347 | (last (ediff-with-current-buffer buff (point-max))) |
92c51e07 MK |
1348 | (begin (ediff-get-diff-posn buf-type 'beg n)) |
1349 | (end (ediff-get-diff-posn buf-type 'end n)) | |
1350 | (xtra (if (equal begin end) 1 0)) | |
1351 | (end-hilit (min last (+ end xtra))) | |
acce6d21 | 1352 | (current-diff-overlay |
92c51e07 | 1353 | (symbol-value |
e756eb9f MK |
1354 | (ediff-get-symbol-from-alist |
1355 | buf-type ediff-current-diff-overlay-alist)))) | |
acce6d21 | 1356 | |
92c51e07 MK |
1357 | (if ediff-xemacs-p |
1358 | (ediff-move-overlay current-diff-overlay begin end-hilit) | |
1359 | (ediff-move-overlay current-diff-overlay begin end-hilit buff)) | |
acce6d21 | 1360 | (ediff-overlay-put current-diff-overlay 'priority |
92c51e07 MK |
1361 | (ediff-highest-priority begin end-hilit buff)) |
1362 | (ediff-overlay-put current-diff-overlay 'ediff-diff-num n) | |
acce6d21 | 1363 | |
92c51e07 MK |
1364 | ;; unhighlight the background overlay for diff n so it won't |
1365 | ;; interfere with the current diff overlay | |
1366 | (ediff-set-overlay-face (ediff-get-diff-overlay n buf-type) nil) | |
1367 | ))) | |
1368 | ||
1369 | ||
1370 | (defun ediff-unhighlight-diff-in-one-buffer (buf-type) | |
1371 | (if (ediff-buffer-live-p (ediff-get-buffer buf-type)) | |
acce6d21 | 1372 | (let ((current-diff-overlay |
92c51e07 | 1373 | (symbol-value |
e756eb9f MK |
1374 | (ediff-get-symbol-from-alist |
1375 | buf-type ediff-current-diff-overlay-alist))) | |
92c51e07 MK |
1376 | (overlay |
1377 | (ediff-get-diff-overlay ediff-current-difference buf-type)) | |
1378 | ) | |
acce6d21 | 1379 | |
92c51e07 | 1380 | (ediff-move-overlay current-diff-overlay 1 1) |
acce6d21 | 1381 | |
92c51e07 MK |
1382 | ;; rehighlight the overlay in the background of the |
1383 | ;; current difference region | |
1384 | (ediff-set-overlay-face | |
1385 | overlay | |
1386 | (if (and (ediff-has-face-support-p) | |
1387 | ediff-use-faces ediff-highlight-all-diffs) | |
1388 | (ediff-background-face buf-type ediff-current-difference))) | |
1389 | ))) | |
1390 | ||
1391 | (defun ediff-unhighlight-diffs-totally-in-one-buffer (buf-type) | |
1392 | (ediff-unselect-and-select-difference -1) | |
1393 | (if (and (ediff-has-face-support-p) ediff-use-faces) | |
1394 | (let* ((inhibit-quit t) | |
1395 | (current-diff-overlay-var | |
e756eb9f MK |
1396 | (ediff-get-symbol-from-alist |
1397 | buf-type ediff-current-diff-overlay-alist)) | |
92c51e07 MK |
1398 | (current-diff-overlay (symbol-value current-diff-overlay-var))) |
1399 | (ediff-paint-background-regions 'unhighlight) | |
1400 | (if (ediff-overlayp current-diff-overlay) | |
1401 | (ediff-delete-overlay current-diff-overlay)) | |
1402 | (set current-diff-overlay-var nil) | |
1403 | ))) | |
acce6d21 | 1404 | |
475f9031 KH |
1405 | |
1406 | (defsubst ediff-highlight-diff (n) | |
1407 | "Put face on diff N. Invoked for X displays only." | |
1408 | (ediff-highlight-diff-in-one-buffer n 'A) | |
1409 | (ediff-highlight-diff-in-one-buffer n 'B) | |
8343426b MK |
1410 | (ediff-highlight-diff-in-one-buffer n 'C) |
1411 | (ediff-highlight-diff-in-one-buffer n 'Ancestor) | |
1412 | ) | |
475f9031 KH |
1413 | |
1414 | ||
1415 | (defsubst ediff-unhighlight-diff () | |
1416 | "Remove overlays from buffers A, B, and C." | |
1417 | (ediff-unhighlight-diff-in-one-buffer 'A) | |
1418 | (ediff-unhighlight-diff-in-one-buffer 'B) | |
8343426b MK |
1419 | (ediff-unhighlight-diff-in-one-buffer 'C) |
1420 | (ediff-unhighlight-diff-in-one-buffer 'Ancestor) | |
1421 | ) | |
acce6d21 | 1422 | |
475f9031 KH |
1423 | ;; delete highlighting overlays, restore faces to their original form |
1424 | (defsubst ediff-unhighlight-diffs-totally () | |
1425 | (ediff-unhighlight-diffs-totally-in-one-buffer 'A) | |
1426 | (ediff-unhighlight-diffs-totally-in-one-buffer 'B) | |
8343426b MK |
1427 | (ediff-unhighlight-diffs-totally-in-one-buffer 'C) |
1428 | (ediff-unhighlight-diffs-totally-in-one-buffer 'Ancestor) | |
1429 | ) | |
1430 | ||
acce6d21 | 1431 | |
475f9031 KH |
1432 | ;; arg is a record for a given diff in a difference vector |
1433 | ;; this record is itself a vector | |
1434 | (defsubst ediff-clear-fine-diff-vector (diff-record) | |
1435 | (if diff-record | |
1436 | (mapcar 'ediff-delete-overlay | |
1437 | (ediff-get-fine-diff-vector-from-diff-record diff-record)))) | |
acce6d21 | 1438 | |
475f9031 KH |
1439 | (defsubst ediff-clear-fine-differences-in-one-buffer (n buf-type) |
1440 | (ediff-clear-fine-diff-vector (ediff-get-difference n buf-type)) | |
1441 | (ediff-set-fine-diff-vector n buf-type nil)) | |
acce6d21 | 1442 | |
475f9031 KH |
1443 | (defsubst ediff-clear-fine-differences (n) |
1444 | (ediff-clear-fine-differences-in-one-buffer n 'A) | |
1445 | (ediff-clear-fine-differences-in-one-buffer n 'B) | |
1446 | (if ediff-3way-job | |
1447 | (ediff-clear-fine-differences-in-one-buffer n 'C))) | |
acce6d21 | 1448 | |
475f9031 KH |
1449 | |
1450 | (defsubst ediff-convert-fine-diffs-to-overlays (diff-list region-num) | |
1451 | (ediff-set-fine-overlays-in-one-buffer 'A diff-list region-num) | |
1452 | (ediff-set-fine-overlays-in-one-buffer 'B diff-list region-num) | |
1453 | (if ediff-3way-job | |
1454 | (ediff-set-fine-overlays-in-one-buffer 'C diff-list region-num) | |
1455 | )) | |
acce6d21 | 1456 | |
475f9031 KH |
1457 | (defsubst ediff-mouse-event-p (event) |
1458 | (if ediff-xemacs-p | |
1459 | (button-event-p event) | |
1460 | (string-match "mouse" (format "%S" (event-basic-type event))) | |
1461 | )) | |
8343426b MK |
1462 | |
1463 | ||
1464 | (defsubst ediff-key-press-event-p (event) | |
1465 | (if ediff-xemacs-p | |
1466 | (key-press-event-p event) | |
1467 | (or (char-or-string-p event) (symbolp event)))) | |
1468 | ||
1469 | (defun ediff-event-point (event) | |
1470 | (cond ((ediff-mouse-event-p event) | |
1471 | (if ediff-xemacs-p | |
1472 | (event-point event) | |
1473 | (posn-point (event-start event)))) | |
1474 | ((ediff-key-press-event-p event) | |
1475 | (point)) | |
4ae69eac | 1476 | (t (error)))) |
8343426b MK |
1477 | |
1478 | (defun ediff-event-buffer (event) | |
1479 | (cond ((ediff-mouse-event-p event) | |
1480 | (if ediff-xemacs-p | |
1481 | (event-buffer event) | |
1482 | (window-buffer (posn-window (event-start event))))) | |
1483 | ((ediff-key-press-event-p event) | |
1484 | (current-buffer)) | |
4ae69eac | 1485 | (t (error)))) |
acce6d21 TTN |
1486 | |
1487 | ||
475f9031 | 1488 | (defsubst ediff-frame-iconified-p (frame) |
41d25ad0 | 1489 | (if (and (ediff-window-display-p) (frame-live-p frame)) |
475f9031 | 1490 | (if ediff-xemacs-p |
41d25ad0 | 1491 | (frame-iconified-p frame) |
475f9031 | 1492 | (eq (frame-visible-p frame) 'icon)))) |
acce6d21 | 1493 | |
475f9031 | 1494 | (defsubst ediff-window-visible-p (wind) |
41d25ad0 | 1495 | ;; under TTY, window-live-p also means window is visible |
475f9031 | 1496 | (and (window-live-p wind) |
41d25ad0 KH |
1497 | (or (not (ediff-window-display-p)) |
1498 | (frame-visible-p (window-frame wind))))) | |
acce6d21 | 1499 | |
475f9031 KH |
1500 | |
1501 | (defsubst ediff-frame-char-width (frame) | |
1502 | (if ediff-xemacs-p | |
41d25ad0 | 1503 | (/ (frame-pixel-width frame) (frame-width frame)) |
475f9031 | 1504 | (frame-char-width frame))) |
acce6d21 | 1505 | |
8343426b MK |
1506 | (defun ediff-reset-mouse (&optional frame do-not-grab-mouse) |
1507 | (or frame (setq frame (selected-frame))) | |
41d25ad0 | 1508 | (if (ediff-window-display-p) |
8343426b | 1509 | (let ((frame-or-wind frame)) |
acce6d21 | 1510 | (if ediff-xemacs-p |
8343426b MK |
1511 | (setq frame-or-wind (frame-selected-window frame))) |
1512 | (or do-not-grab-mouse | |
1513 | ;; don't set mouse if the user said to never do this | |
acce6d21 | 1514 | (not ediff-grab-mouse) |
8343426b MK |
1515 | ;; Don't grab on quit, if the user doesn't want to. |
1516 | ;; If ediff-grab-mouse = t, then mouse won't be grabbed for | |
1517 | ;; sessions that are not part of a group (this is done in | |
3af0304a | 1518 | ;; ediff-recenter). The condition below affects only terminating |
ceb0ea8b | 1519 | ;; sessions in session groups (in which case mouse is warped into |
8343426b MK |
1520 | ;; a meta buffer). |
1521 | (and (eq ediff-grab-mouse 'maybe) | |
1522 | (memq this-command '(ediff-quit ediff-update-diffs))) | |
1523 | (set-mouse-position frame-or-wind 1 0)) | |
1524 | ))) | |
1525 | ||
1526 | (defsubst ediff-spy-after-mouse () | |
1527 | (setq ediff-mouse-pixel-position (mouse-pixel-position))) | |
1528 | ||
4ae69eac | 1529 | ;; It is not easy to find out when the user grabs the mouse, since emacs and |
3af0304a | 1530 | ;; xemacs behave differently when mouse is not in any frame. Also, this is |
4ae69eac | 1531 | ;; sensitive to when the user grabbed mouse. Not used for now. |
8343426b MK |
1532 | (defun ediff-user-grabbed-mouse () |
1533 | (if ediff-mouse-pixel-position | |
1534 | (cond ((not (eq (car ediff-mouse-pixel-position) | |
1535 | (car (mouse-pixel-position))))) | |
1536 | ((and (car (cdr ediff-mouse-pixel-position)) | |
1537 | (car (cdr (mouse-pixel-position))) | |
1538 | (cdr (cdr ediff-mouse-pixel-position)) | |
1539 | (cdr (cdr (mouse-pixel-position)))) | |
1540 | (not (and (< (abs (- (car (cdr ediff-mouse-pixel-position)) | |
1541 | (car (cdr (mouse-pixel-position))))) | |
ceb0ea8b | 1542 | ediff-mouse-pixel-threshold) |
8343426b MK |
1543 | (< (abs (- (cdr (cdr ediff-mouse-pixel-position)) |
1544 | (cdr (cdr (mouse-pixel-position))))) | |
ceb0ea8b | 1545 | ediff-mouse-pixel-threshold)))) |
8343426b | 1546 | (t nil)))) |
acce6d21 | 1547 | |
475f9031 KH |
1548 | (defsubst ediff-frame-char-height (frame) |
1549 | (if ediff-xemacs-p | |
4ae69eac | 1550 | (glyph-height ediff-H-glyph (selected-window frame)) |
475f9031 | 1551 | (frame-char-height frame))) |
acce6d21 | 1552 | |
92c51e07 | 1553 | ;; Some overlay functions |
475f9031 | 1554 | |
ddc90f39 MK |
1555 | (defsubst ediff-overlay-start (overl) |
1556 | (if (ediff-overlayp overl) | |
1557 | (if ediff-emacs-p | |
1558 | (overlay-start overl) | |
1559 | (extent-start-position overl)))) | |
acce6d21 | 1560 | |
ddc90f39 MK |
1561 | (defsubst ediff-overlay-end (overl) |
1562 | (if (ediff-overlayp overl) | |
1563 | (if ediff-emacs-p | |
1564 | (overlay-end overl) | |
1565 | (extent-end-position overl)))) | |
1566 | ||
475f9031 KH |
1567 | (defsubst ediff-empty-overlay-p (overl) |
1568 | (= (ediff-overlay-start overl) (ediff-overlay-end overl))) | |
4ae69eac | 1569 | |
3af0304a MK |
1570 | ;; like overlay-buffer in Emacs. In XEmacs, returns nil if the extent is |
1571 | ;; dead. Otherwise, works like extent-buffer | |
4ae69eac MK |
1572 | (defun ediff-overlay-buffer (overl) |
1573 | (if ediff-emacs-p | |
1574 | (overlay-buffer overl) | |
bbe6126c | 1575 | (and (extent-live-p overl) (extent-object overl)))) |
4ae69eac | 1576 | |
3af0304a MK |
1577 | ;; like overlay-get in Emacs. In XEmacs, returns nil if the extent is |
1578 | ;; dead. Otherwise, like extent-property | |
4ae69eac MK |
1579 | (defun ediff-overlay-get (overl property) |
1580 | (if ediff-emacs-p | |
1581 | (overlay-get overl property) | |
1582 | (and (extent-live-p overl) (extent-property overl property)))) | |
92c51e07 MK |
1583 | |
1584 | ||
1585 | ;; These two functions are here because XEmacs refuses to | |
1586 | ;; handle overlays whose buffers were deleted. | |
1587 | (defun ediff-move-overlay (overlay beg end &optional buffer) | |
1588 | "Calls `move-overlay' in Emacs and `set-extent-endpoints' in Lemacs. | |
1589 | Checks if overlay's buffer exists before actually doing the move." | |
1590 | (let ((buf (and overlay (ediff-overlay-buffer overlay)))) | |
1591 | (if (ediff-buffer-live-p buf) | |
1592 | (if ediff-xemacs-p | |
1593 | (set-extent-endpoints overlay beg end) | |
1594 | (move-overlay overlay beg end buffer)) | |
1595 | ;; buffer's dead | |
1596 | (if overlay | |
1597 | (ediff-delete-overlay overlay))))) | |
acce6d21 | 1598 | |
92c51e07 MK |
1599 | (defun ediff-overlay-put (overlay prop value) |
1600 | "Calls `overlay-put' or `set-extent-property' depending on Emacs version. | |
1601 | Checks if overlay's buffer exists." | |
1602 | (if (ediff-buffer-live-p (ediff-overlay-buffer overlay)) | |
1603 | (if ediff-xemacs-p | |
1604 | (set-extent-property overlay prop value) | |
1605 | (overlay-put overlay prop value)) | |
1606 | (ediff-delete-overlay overlay))) | |
1607 | ||
1608 | ;; Some diff region tests | |
acce6d21 | 1609 | |
475f9031 KH |
1610 | ;; t if diff region is empty. |
1611 | ;; In case of buffer C, t also if it is not a 3way | |
1612 | ;; comparison job (merging jobs return t as well). | |
1613 | (defun ediff-empty-diff-region-p (n buf-type) | |
1614 | (if (eq buf-type 'C) | |
1615 | (or (not ediff-3way-comparison-job) | |
1616 | (= (ediff-get-diff-posn 'C 'beg n) | |
1617 | (ediff-get-diff-posn 'C 'end n))) | |
1618 | (= (ediff-get-diff-posn buf-type 'beg n) | |
1619 | (ediff-get-diff-posn buf-type 'end n)))) | |
acce6d21 | 1620 | |
475f9031 KH |
1621 | ;; Test if diff region is white space only. |
1622 | ;; If 2-way job and buf-type = C, then returns t. | |
1623 | (defun ediff-whitespace-diff-region-p (n buf-type) | |
1624 | (or (and (eq buf-type 'C) (not ediff-3way-job)) | |
8343426b | 1625 | (ediff-empty-diff-region-p n buf-type) |
475f9031 KH |
1626 | (let ((beg (ediff-get-diff-posn buf-type 'beg n)) |
1627 | (end (ediff-get-diff-posn buf-type 'end n))) | |
e756eb9f | 1628 | (ediff-with-current-buffer (ediff-get-buffer buf-type) |
475f9031 KH |
1629 | (save-excursion |
1630 | (goto-char beg) | |
1631 | (skip-chars-forward ediff-whitespace) | |
1632 | (>= (point) end)))))) | |
acce6d21 | 1633 | |
475f9031 KH |
1634 | ;; temporarily uses DIR to abbreviate file name |
1635 | ;; if DIR is nil, use default-directory | |
4ae69eac | 1636 | (defun ediff-abbreviate-file-name (file &optional dir) |
8343426b MK |
1637 | (cond ((stringp dir) |
1638 | (let ((directory-abbrev-alist (list (cons dir "")))) | |
1639 | (abbreviate-file-name file))) | |
1640 | (ediff-emacs-p (abbreviate-file-name file)) | |
1641 | (t ; XEmacs requires addl argument | |
1642 | (abbreviate-file-name file t)))) | |
1643 | ||
1644 | ;; Takes a directory and returns the parent directory. | |
3af0304a | 1645 | ;; does nothing to `/'. If the ARG is a regular file, |
8343426b MK |
1646 | ;; strip the file AND the last dir. |
1647 | (defun ediff-strip-last-dir (dir) | |
1648 | (if (not (stringp dir)) (setq dir default-directory)) | |
1649 | (setq dir (expand-file-name dir)) | |
1650 | (or (file-directory-p dir) (setq dir (file-name-directory dir))) | |
1651 | (let* ((pos (1- (length dir))) | |
1652 | (last-char (aref dir pos))) | |
1653 | (if (and (> pos 0) (= last-char ?/)) | |
1654 | (setq dir (substring dir 0 pos))) | |
1655 | (ediff-abbreviate-file-name (file-name-directory dir)))) | |
1656 | ||
1657 | (defun ediff-truncate-string-left (str newlen) | |
1658 | ;; leave space for ... on the left | |
1659 | (let ((len (length str)) | |
1660 | substr) | |
1661 | (if (<= len newlen) | |
1662 | str | |
1663 | (setq newlen (max 0 (- newlen 3))) | |
1664 | (setq substr (substring str (max 0 (- len 1 newlen)))) | |
1665 | (concat "..." substr)))) | |
1666 | ||
3af0304a MK |
1667 | (defsubst ediff-nonempty-string-p (string) |
1668 | (and (stringp string) (not (string= string "")))) | |
1669 | ||
2550055a MK |
1670 | (unless (fboundp 'subst-char-in-string) |
1671 | (defun subst-char-in-string (fromchar tochar string &optional inplace) | |
1672 | "Replace FROMCHAR with TOCHAR in STRING each time it occurs. | |
1673 | Unless optional argument INPLACE is non-nil, return a new string." | |
1674 | (let ((i (length string)) | |
1675 | (newstr (if inplace string (copy-sequence string)))) | |
1676 | (while (> i 0) | |
1677 | (setq i (1- i)) | |
1678 | (if (eq (aref newstr i) fromchar) | |
1679 | (aset newstr i tochar))) | |
1680 | newstr))) | |
1681 | ||
8343426b MK |
1682 | (defun ediff-abbrev-jobname (jobname) |
1683 | (cond ((eq jobname 'ediff-directories) | |
1684 | "Compare two directories") | |
1685 | ((eq jobname 'ediff-files) | |
1686 | "Compare two files") | |
1687 | ((eq jobname 'ediff-buffers) | |
1688 | "Compare two buffers") | |
1689 | ((eq jobname 'ediff-directories3) | |
1690 | "Compare three directories") | |
1691 | ((eq jobname 'ediff-files3) | |
1692 | "Compare three files") | |
1693 | ((eq jobname 'ediff-buffers3) | |
1694 | "Compare three buffers") | |
1695 | ((eq jobname 'ediff-revision) | |
1696 | "Compare file with a version") | |
1697 | ((eq jobname 'ediff-directory-revisions) | |
1698 | "Compare dir files with versions") | |
1699 | ((eq jobname 'ediff-merge-directory-revisions) | |
1700 | "Merge dir files with versions") | |
1701 | ((eq jobname 'ediff-merge-directory-revisions-with-ancestor) | |
1702 | "Merge dir versions via ancestors") | |
1703 | (t | |
7d027816 MK |
1704 | (capitalize |
1705 | (subst-char-in-string ?- ?\ (substring (symbol-name jobname) 6)))) | |
1706 | )) | |
acce6d21 TTN |
1707 | |
1708 | ||
475f9031 | 1709 | (defsubst ediff-get-region-contents (n buf-type ctrl-buf &optional start end) |
acce6d21 | 1710 | (ediff-with-current-buffer |
e756eb9f | 1711 | (ediff-with-current-buffer ctrl-buf (ediff-get-buffer buf-type)) |
475f9031 KH |
1712 | (buffer-substring |
1713 | (or start (ediff-get-diff-posn buf-type 'beg n ctrl-buf)) | |
1714 | (or end (ediff-get-diff-posn buf-type 'end n ctrl-buf))))) | |
acce6d21 | 1715 | |
475f9031 KH |
1716 | ;; If ediff modified mode line, strip the modification |
1717 | (defsubst ediff-strip-mode-line-format () | |
8343426b | 1718 | (if (member (car mode-line-format) '(" A: " " B: " " C: " " Ancestor: ")) |
475f9031 KH |
1719 | (setq mode-line-format (nth 2 mode-line-format)))) |
1720 | ||
1721 | ;; Verify that we have a difference selected. | |
1722 | (defsubst ediff-valid-difference-p (&optional n) | |
1723 | (or n (setq n ediff-current-difference)) | |
1724 | (and (>= n 0) (< n ediff-number-of-differences))) | |
acce6d21 | 1725 | |
475f9031 KH |
1726 | (defsubst ediff-show-all-diffs (n) |
1727 | "Don't skip difference regions." | |
1728 | nil) | |
8343426b MK |
1729 | |
1730 | (defsubst Xor (a b) | |
1731 | (or (and a (not b)) (and (not a) b))) | |
009650b3 MK |
1732 | |
1733 | (defsubst ediff-message-if-verbose (string &rest args) | |
1734 | (if ediff-verbose-p | |
1735 | (apply 'message string args))) | |
4ae69eac | 1736 | |
bbe6126c | 1737 | (defun ediff-file-attributes (filename attr-number) |
ddc90f39 MK |
1738 | (if (ediff-file-remote-p filename) |
1739 | -1 | |
1740 | (nth attr-number (file-attributes filename)))) | |
1741 | ||
bbe6126c MK |
1742 | (defsubst ediff-file-size (filename) |
1743 | (ediff-file-attributes filename 7)) | |
1744 | (defsubst ediff-file-modtime (filename) | |
1745 | (ediff-file-attributes filename 5)) | |
1746 | ||
1747 | ||
92c51e07 | 1748 | (defun ediff-convert-standard-filename (fname) |
ddc90f39 | 1749 | (if (fboundp 'convert-standard-filename) |
92c51e07 | 1750 | (convert-standard-filename fname) |
92c51e07 | 1751 | fname)) |
bbe6126c MK |
1752 | |
1753 | ||
92c51e07 MK |
1754 | ;;; Local Variables: |
1755 | ;;; eval: (put 'ediff-defvar-local 'lisp-indent-hook 'defun) | |
e756eb9f MK |
1756 | ;;; eval: (put 'ediff-with-current-buffer 'lisp-indent-hook 1) |
1757 | ;;; eval: (put 'ediff-with-current-buffer 'edebug-form-spec '(form body)) | |
92c51e07 | 1758 | ;;; End: |
acce6d21 | 1759 | |
475f9031 KH |
1760 | (provide 'ediff-init) |
1761 | ||
1762 | ||
1763 | ;;; ediff-init.el ends here |