Small fix for he-line-search-regexp

* lisp/hippie-exp.el (he-line-search-regexp):
Handle comint-prompt-regexp containing subgroups.

Fixes: debbugs:17529

2 files changed, 6 insertions, 1 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 1d450e3d5d5..c142daeee7f 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2014-05-23  Glenn Morris  <rgm@gnu.org>
+
+        * hippie-exp.el (he-line-search-regexp):
+        Handle comint-prompt-regexp containing subgroups.  (Bug#17529)
+
 2014-05-23  Stephen Berman  <stephen.berman@gmx.net>
 
         * calendar/todo-mode.el: Remove dependence on auto-mode-alist,
diff --git a/lisp/hippie-exp.el b/lisp/hippie-exp.el
index 51c8c3c3d7e..d3b8a2cf6c5 100644
--- a/lisp/hippie-exp.el
+++ b/lisp/hippie-exp.el
@@ -715,7 +715,7 @@ string).  It returns t if a new completion is found, nil otherwise."
 
 (defun he-line-search-regexp (pat strip-prompt)
   (if strip-prompt
-      (concat "\\(" comint-prompt-regexp "\\|^\\s-*\\)\\("
+      (concat "\\(" comint-prompt-regexp "\\|^\\s-*\\)\\(?2:"
               (regexp-quote pat)
               "[^\n]*[^ \t\n]\\)")
       (concat "^\\(\\s-*\\)\\("