+2007-07-22 Stefan Monnier <monnier@iro.umontreal.ca>
+
+ * diff-mode.el (diff-beginning-of-file-and-junk): New function.
+ (diff-file-kill): Use it.
+ (diff-beginning-of-hunk): Add arg `try-harder' using it.
+ (diff-restrict-view, diff-find-source-location, diff-refine-hunk):
+ Use it so they find the hunk even when we're in the file header.
+
2007-07-22 Dan Nicolaescu <dann@ics.uci.edu>
* vc-git.el (vc-git-revision-granularity,vc-git-root),
2007-07-22 Stefan Monnier <monnier@iro.umontreal.ca>
- * textmodes/tex-mode.el (tex-font-script-display): Change default to 0.2.
+ * textmodes/tex-mode.el (tex-font-script-display): Change default.
2007-07-22 Dan Nicolaescu <dann@ics.uci.edu>
;; The return value is used by easy-mmode-define-navigation.
(goto-char (or end (point-max)))))
-(defun diff-beginning-of-hunk ()
+(defun diff-beginning-of-hunk (&optional try-harder)
+ "Move back to beginning of hunk.
+If TRY-HARDER is non-nil, try to cater to the case where we're not in a hunk
+but in the file header instead, in which case move forward to the first hunk."
(beginning-of-line)
(unless (looking-at diff-hunk-header-re)
(forward-line 1)
(condition-case ()
(re-search-backward diff-hunk-header-re)
- (error (error "Can't find the beginning of the hunk")))))
+ (error
+ (if (not try-harder)
+ (error "Can't find the beginning of the hunk")
+ (diff-beginning-of-file-and-junk)
+ (diff-hunk-next))))))
(defun diff-beginning-of-file ()
(beginning-of-line)
If the prefix ARG is given, restrict the view to the current file instead."
(interactive "P")
(save-excursion
- (if arg (diff-beginning-of-file) (diff-beginning-of-hunk))
+ (if arg (diff-beginning-of-file) (diff-beginning-of-hunk 'try-harder))
(narrow-to-region (point)
(progn (if arg (diff-end-of-file) (diff-end-of-hunk))
(point)))
(diff-end-of-hunk)
(kill-region start (point)))))
+(defun diff-beginning-of-file-and-junk ()
+ "Go to the beginning of file-related diff-info.
+This is like `diff-beginning-of-file' except it tries to skip back over leading
+data such as \"Index: ...\" and such."
+ (let ((start (point))
+ (file (condition-case err (progn (diff-beginning-of-file) (point))
+ (error err)))
+ ;; prevhunk is one of the limits.
+ (prevhunk (save-excursion (ignore-errors (diff-hunk-prev) (point))))
+ err)
+ (when (consp file)
+ ;; Presumably, we started before the file header, in the leading junk.
+ (setq err file)
+ (diff-file-next)
+ (setq file (point)))
+ (let ((index (save-excursion
+ (re-search-backward "^Index: " prevhunk t))))
+ (when index (setq file index))
+ (if (<= file start)
+ (goto-char file)
+ ;; File starts *after* the starting point: we really weren't in
+ ;; a file diff but elsewhere.
+ (goto-char start)
+ (signal (car err) (cdr err))))))
+
(defun diff-file-kill ()
"Kill current file's hunks."
(interactive)
- (diff-beginning-of-file)
+ (diff-beginning-of-file-and-junk)
(let* ((start (point))
- (prevhunk (save-excursion
- (ignore-errors
- (diff-hunk-prev) (point))))
- (index (save-excursion
- (re-search-backward "^Index: " prevhunk t)))
(inhibit-read-only t))
- (when index (setq start index))
(diff-end-of-file)
(if (looking-at "^\n") (forward-char 1)) ;`tla' generates such diffs.
(kill-region start (point))))
SWITCHED is non-nil if the patch is already applied."
(save-excursion
(let* ((other (diff-xor other-file diff-jump-to-old-file))
- (char-offset (- (point) (progn (diff-beginning-of-hunk) (point))))
+ (char-offset (- (point) (progn (diff-beginning-of-hunk 'try-harder)
+ (point))))
;; Check that the hunk is well-formed. Otherwise diff-mode and
;; the user may disagree on what constitutes the hunk
;; (e.g. because an empty line truncates the hunk mid-course),
(defun diff-refine-hunk ()
"Refine the current hunk by ignoring space differences."
(interactive)
- (let* ((char-offset (- (point) (progn (diff-beginning-of-hunk) (point))))
+ (let* ((char-offset (- (point) (progn (diff-beginning-of-hunk 'try-harder)
+ (point))))
(opts (case (char-after) (?@ "-bu") (?* "-bc") (t "-b")))
(line-nb (and (or (looking-at "[^0-9]+\\([0-9]+\\)")
(error "Can't find line number"))