From 5f66aa05d482ebb786d5941e78d95b74e4561465 Mon Sep 17 00:00:00 2001
From: Glenn Morris <rgm@gnu.org>
Date: Tue, 13 Sep 2011 17:13:10 -0400
Subject: Tabify previous change.
---
lisp/emacs-lisp/debug.el | 124 +++++++++++++++++++++++------------------------
1 file changed, 62 insertions(+), 62 deletions(-)
(limited to 'lisp/emacs-lisp')
diff --git a/lisp/emacs-lisp/debug.el b/lisp/emacs-lisp/debug.el
index 6533721054c..16258a5a3a1 100644
--- a/lisp/emacs-lisp/debug.el
+++ b/lisp/emacs-lisp/debug.el
@@ -345,68 +345,68 @@ That buffer should be current already."
(save-excursion
(setq buffer (current-buffer))
(let ((inhibit-read-only t)
- (old-end (point-min)) (new-end (point-min)))
- ;; If we saved an old backtrace, find the common part
- ;; between the new and the old.
- ;; Compare line by line, starting from the end,
- ;; because that's the part that is likely to be unchanged.
- (if debugger-previous-backtrace
- (let (old-start new-start (all-match t))
- (goto-char (point-max))
- (with-temp-buffer
- (insert debugger-previous-backtrace)
- (while (and all-match (not (bobp)))
- (setq old-end (point))
- (forward-line -1)
- (setq old-start (point))
- (with-current-buffer buffer
- (setq new-end (point))
- (forward-line -1)
- (setq new-start (point)))
- (if (not (zerop
- (let ((case-fold-search nil))
- (compare-buffer-substrings
- (current-buffer) old-start old-end
- buffer new-start new-end))))
- (setq all-match nil))))
- ;; Now new-end is the position of the start of the
- ;; unchanged part in the current buffer, and old-end is
- ;; the position of that same text in the saved old
- ;; backtrace. But we must subtract (point-min) since strings are
- ;; indexed in origin 0.
-
- ;; Replace the unchanged part of the backtrace
- ;; with the text from debugger-previous-backtrace,
- ;; since that already has the proper xrefs.
- ;; With this optimization, we only need to scan
- ;; the changed part of the backtrace.
- (delete-region new-end (point-max))
- (goto-char (point-max))
- (insert (substring debugger-previous-backtrace
- (- old-end (point-min))))
- ;; Make the unchanged part of the backtrace inaccessible
- ;; so it won't be scanned.
- (narrow-to-region (point-min) new-end)))
-
- ;; Scan the new part of the backtrace, inserting xrefs.
- (goto-char (point-min))
- (while (progn
- (goto-char (+ (point) 2))
- (skip-syntax-forward "^w_")
- (not (eobp)))
- (let* ((beg (point))
- (end (progn (skip-syntax-forward "w_") (point)))
- (sym (intern-soft (buffer-substring-no-properties
- beg end)))
- (file (and sym (symbol-file sym 'defun))))
- (when file
- (goto-char beg)
- ;; help-xref-button needs to operate on something matched
- ;; by a regexp, so set that up for it.
- (re-search-forward "\\(\\sw\\|\\s_\\)+")
- (help-xref-button 0 'help-function-def sym file)))
- (forward-line 1))
- (widen))
+ (old-end (point-min)) (new-end (point-min)))
+ ;; If we saved an old backtrace, find the common part
+ ;; between the new and the old.
+ ;; Compare line by line, starting from the end,
+ ;; because that's the part that is likely to be unchanged.
+ (if debugger-previous-backtrace
+ (let (old-start new-start (all-match t))
+ (goto-char (point-max))
+ (with-temp-buffer
+ (insert debugger-previous-backtrace)
+ (while (and all-match (not (bobp)))
+ (setq old-end (point))
+ (forward-line -1)
+ (setq old-start (point))
+ (with-current-buffer buffer
+ (setq new-end (point))
+ (forward-line -1)
+ (setq new-start (point)))
+ (if (not (zerop
+ (let ((case-fold-search nil))
+ (compare-buffer-substrings
+ (current-buffer) old-start old-end
+ buffer new-start new-end))))
+ (setq all-match nil))))
+ ;; Now new-end is the position of the start of the
+ ;; unchanged part in the current buffer, and old-end is
+ ;; the position of that same text in the saved old
+ ;; backtrace. But we must subtract (point-min) since strings are
+ ;; indexed in origin 0.
+
+ ;; Replace the unchanged part of the backtrace
+ ;; with the text from debugger-previous-backtrace,
+ ;; since that already has the proper xrefs.
+ ;; With this optimization, we only need to scan
+ ;; the changed part of the backtrace.
+ (delete-region new-end (point-max))
+ (goto-char (point-max))
+ (insert (substring debugger-previous-backtrace
+ (- old-end (point-min))))
+ ;; Make the unchanged part of the backtrace inaccessible
+ ;; so it won't be scanned.
+ (narrow-to-region (point-min) new-end)))
+
+ ;; Scan the new part of the backtrace, inserting xrefs.
+ (goto-char (point-min))
+ (while (progn
+ (goto-char (+ (point) 2))
+ (skip-syntax-forward "^w_")
+ (not (eobp)))
+ (let* ((beg (point))
+ (end (progn (skip-syntax-forward "w_") (point)))
+ (sym (intern-soft (buffer-substring-no-properties
+ beg end)))
+ (file (and sym (symbol-file sym 'defun))))
+ (when file
+ (goto-char beg)
+ ;; help-xref-button needs to operate on something matched
+ ;; by a regexp, so set that up for it.
+ (re-search-forward "\\(\\sw\\|\\s_\\)+")
+ (help-xref-button 0 'help-function-def sym file)))
+ (forward-line 1))
+ (widen))
(setq debugger-previous-backtrace (buffer-string)))))
(defun debugger-step-through ()
--
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