(python-beginning-of-statement): Exit the loop if backward-up-list gets error.

diff --git a/lisp/progmodes/python.el b/lisp/progmodes/python.el
index 274480a..9be2c75 100644 (file)
--- a/lisp/progmodes/python.el
+++ b/lisp/progmodes/python.el
@@ -710,16 +710,17 @@ Accounts for continuation lines, multi-line strings, and multi-line bracketed
 expressions."
   (beginning-of-line)
   (python-beginning-of-string)
-  (while (python-continuation-line-p)
-    (beginning-of-line)
-    (if (python-backslash-continuation-line-p)
-       (while (python-backslash-continuation-line-p)
-         (forward-line -1))
-      (python-beginning-of-string)
-      ;; Skip forward out of nested brackets.
-      (condition-case ()               ; beware invalid syntax
-         (progn (backward-up-list (syntax-ppss-depth (syntax-ppss))) t)
-       (error (end-of-line)))))
+  (catch 'foo
+    (while (python-continuation-line-p)
+      (beginning-of-line)
+      (if (python-backslash-continuation-line-p)
+         (while (python-backslash-continuation-line-p)
+           (forward-line -1))
+       (python-beginning-of-string)
+       ;; Skip forward out of nested brackets.
+       (condition-case ()              ; beware invalid syntax
+           (progn (backward-up-list (syntax-ppss-depth (syntax-ppss))) t)
+         (error (throw 'foo nil))))))
   (back-to-indentation))
 
 (defun python-end-of-statement ()