From: Juri Linkov <juri@jurta.org>
Date: Wed, 8 Sep 2004 20:43:17 +0000 (+0000)
Subject: (isearch-lazy-highlight-update): Take into account
X-Git-Tag: ttn-vms-21-2-B4~4983
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=5ee5cd10177c16cd5b65b97faf87f3ab1dfc9129;p=emacs.git

(isearch-lazy-highlight-update): Take into account
the case of zero-length match at the search bound.
---

diff --git a/lisp/isearch.el b/lisp/isearch.el
index 572553d816a..2398d56ab5f 100644
--- a/lisp/isearch.el
+++ b/lisp/isearch.el
@@ -2402,7 +2402,17 @@ Attempt to do the search exactly the way the pending isearch would."
                 (let ((mb (match-beginning 0))
                       (me (match-end 0)))
                   (if (= mb me)      ;zero-length match
-                      (forward-char 1)
+		      (if isearch-forward
+			  (if (= mb (if isearch-lazy-highlight-wrapped
+					isearch-lazy-highlight-start
+				      (window-end)))
+			      (setq found nil)
+			    (forward-char 1))
+			(if (= mb (if isearch-lazy-highlight-wrapped
+				      isearch-lazy-highlight-end
+				    (window-start)))
+			    (setq found nil)
+			  (forward-char -1)))
 
                     ;; non-zero-length match
                     (let ((ov (make-overlay mb me)))
@@ -2412,19 +2422,20 @@ Attempt to do the search exactly the way the pending isearch would."
                       (push ov isearch-lazy-highlight-overlays)))
                   (if isearch-forward
                       (setq isearch-lazy-highlight-end (point))
-                    (setq isearch-lazy-highlight-start (point))))
-
-              ;; not found
-              (if isearch-lazy-highlight-wrapped
-                  (setq looping nil
-                        nomore  t)
-                (setq isearch-lazy-highlight-wrapped t)
-                (if isearch-forward
-                    (progn
-                      (setq isearch-lazy-highlight-end (window-start))
-                      (goto-char (window-start)))
-                  (setq isearch-lazy-highlight-start (window-end))
-                  (goto-char (window-end)))))))
+                    (setq isearch-lazy-highlight-start (point)))))
+
+	    ;; not found or zero-length match at the search bound
+	    (if (not found)
+		(if isearch-lazy-highlight-wrapped
+		    (setq looping nil
+			  nomore  t)
+		  (setq isearch-lazy-highlight-wrapped t)
+		  (if isearch-forward
+		      (progn
+			(setq isearch-lazy-highlight-end (window-start))
+			(goto-char (window-start)))
+		    (setq isearch-lazy-highlight-start (window-end))
+		    (goto-char (window-end)))))))
         (unless nomore
           (setq isearch-lazy-highlight-timer
                 (run-at-time isearch-lazy-highlight-interval nil